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1
Explain three way handshaking in TCP. This question has 0 answers so far.
1
The loss in signal power as light travels down the fiber is called (a) attenuation (b) propogation (c) modem (d) microwave systems This question has 0 answers so far.
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WAN stands for (a) Wireless network (b) Wideband network (c) Wide area network (d) None of above This question has 0 answers so far.
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The RG number gives us iniormation about_____________ (i) All of the these (ii) Optical fiber (iii) Twisted pair (iv) Coaxial cable This question has 0 answers so far.
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The_________ channel is used for application's requiring a transmission greater than 64 kbps. (i) B (i) D (ii) H (iv) All of these This question has 0 answers so far.
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The TCP sliding window______ (i) Can be used to control the flow of information (ii) Always occurs when the field value is 0. (iii) Always occur when field value is 1. (iv) Occurs horizontally This question has 0 answers so far.
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Bit stuffing is used to_______ (i) Pad insufficient information (ii) Distinguish beginning and ending flags from information (ill)convert 8-bit words into 16 bit words. (iv) Fill a data turkey This question has 0 answers so far.
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In which topology, data packet is removed by source destination? (i) Ring (ii) Bus (iii) Star (iv) None This question has 0 answers so far.
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UDP is used with ____________Protocol. (1) Trivial File Transfer (ii) ICMP (iii) LDAP (iv) All of above This question has 0 answers so far.
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In which routing method, do all the routers have a common database?(i) link vector (ii) distance vector (iii) link state (iv) non of the above This question has 0 answers so far.
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Which of the following is a four wire Gigabit Ethernet implementation? (i) 1000base-SX (ii) 1000Base-LX (iii) 1000Base-CX (iv) 1000Base-T This question has 0 answers so far.
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What are some of the factors that determine whether a communication system is a LAN, MAN or WAN? This question has 0 answers so far.
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Define the term connection-oriented as used in data communication and relate it to TCP. This question has 0 answers so far.
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What are the benefits of using layered protocols? Discuss some of them. This question has 0 answers so far.
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What is a peer-to-peer process? What are heades and trailers and how do they get added and removed? This question has 0 answers so far.
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Discus the modes for propagating light along optical channels with proper diagrams. This question has 0 answers so far.
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What do you mean by network topology? Discuss the problems and benefits of any three topologies. This question has 0 answers so far.
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Name different types of HDLC frames and give a brief description of each. This question has 0 answers so far.
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Explain the encapsulation of PDUs in TCP/IP and addressing with suitable diagrams. This question has 0 answers so far.
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How is CRC superior to the two-dimensional parity check? How does the checksum checker know that the received data unit is undamaged? This question has 0 answers so far.
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What do you mean by multiple access communication? What is the role of MAC protocols? This question has 0 answers so far.
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Explain Ethernet protocol with special reference to frame format. This question has 0 answers so far.
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Discuss the Exponential back off algorithm with reference to LANs. This question has 0 answers so far.
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Discuss the CSMA/CD vs CSMA/CA with reference to LANs. This question has 0 answers so far.
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What is the maximum number of subnets in each case? (i) Class A; mask 255.255.192.0 (ii) Class B; mask 255.255.192.0 (iii)Class C; mask 255.255.255.192 (iv) Class C; mask 255.255.255.240 This question has 0 answers so far.
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Explain the leaky bucket algorithm and illustrate how traffic congestion can be reduced. This question has 0 answers so far.
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A routing algorithm should have global knowledge about the state of the network to perform its task. Give various goals and objective to be considered in routing algorithms. This question has 0 answers so far.
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Explain the Leaky bucket algorithm to control congestion. Explain how the drawbacks of this are overcome in a token bucket algorithm? This question has 0 answers so far.
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Are both UDP and IP unreliable to the same degree? Why or why not? This question has 0 answers so far.
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Can the value of header length in an IP packet be less than 5? When is it exactly 5? This question has 0 answers so far.
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What are the various data link layer design issues? Explain stop-andwait ARO protocol with suitable diagrams when Frame is lost. This question has 0 answers so far.
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What are the various data link layer design issues? Explain stop-andwait ARO protocol with suitable diagrams when ACK is lost. This question has 0 answers so far.
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Choose the correct or best alternative in the following:- The routing of datagrams_________ (i) Must follow a fixed path (ii) Occurs on a virtual circuit (iii)Can occur over different paths (iv) Occurs exponentially This question has 0 answers so far.
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Which of the following is considered a broad band communication channel? (i) Coaxial cable (ii) Fiber optics cable (iii) microwave circuits (iv) all of above. This question has 0 answers so far.
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Explain Handling of network errors caused by problems in transmission. This question has 0 answers so far.
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Explain Major functions of Error Controls This question has 0 answers so far.
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Explain Asynchronous transmission and Synchronous transmission. This question has 0 answers so far.
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Explain Point-to Point Protocol (PPP). This question has 0 answers so far.
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Explain Circuit and Packet Switching. This question has 0 answers so far.
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Explain ISDN services BRI V. PRI. This question has 0 answers so far.
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Explain Baseband vs. Broadband. This question has 0 answers so far.
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Explain Channel associated signaling vs. Common channel signaling. This question has 0 answers so far.
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Explain Fast and Least noisy communication medium. This question has 0 answers so far.
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Explain Role of Modulation. This question has 0 answers so far.
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Though the ear can hear a wide spectrum of freiencies, what is the range of frequencies that fom the analog voice channel generally used for communication engineering? This question has 0 answers so far.
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How does Dual Parenting operate in voice communication? This question has 0 answers so far.
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Which property of the carrier wave do we change in modulation technique? This question has 0 answers so far.
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What will be the frequency of a simple sine wave that completes one cycle in one microsecond? This question has 0 answers so far.
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What do you understand by the role of switching in communication?Explain with examples, how modern switching has evolved over time? This question has 0 answers so far.
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With reference to digital modulation, differentiate between ASK, FSK, PSK and QPSK This question has 0 answers so far.
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Why is Multiplexing needed in networking and communication? This question has 0 answers so far.
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Differentiate between TDM, FDM and WDM Multiplexing. This question has 0 answers so far.
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Explain why and what are the tasks in PSTN while performing A-D conversion of the signal? This question has 0 answers so far.
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What are SS7 Network Elements, its functions and layers mappingto OSI protocol. This question has 0 answers so far.
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Explain four levels of addressing which are used in an Internet employing the TCP/IP protocols. This question has 0 answers so far.
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Explain with examples, relationship of layers and addresses in OSI and TCP/IP This question has 0 answers so far.
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What are the different data transmission modes and rates followed under European/Indian and American communication industry? This question has 0 answers so far.
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How we can represent digital data by using digital signals techniques of line coding, block coding and scrambling? This question has 0 answers so far.
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Summarise various access control methods. This question has 0 answers so far.
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Explain network's sources of errors, prevention and error detection techniques. This question has 0 answers so far.
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Mobile phones are known as Cellphones! Why? This question has 0 answers so far.
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Define TTL. This question has 0 answers so far.
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Internet is not a WAN, Explain. This question has 0 answers so far.
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What is a Brouter? This question has 0 answers so far.
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Discuss different components of data communication. This question has 0 answers so far.
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What is a network? Discuss different network criterias. This question has 0 answers so far.
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What is Shannon Capacity? This question has 0 answers so far.
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Discuss different Transmission impairments. This question has 0 answers so far.
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Ресеталшакли треѕ. Explain POLL/SELECT method of line configuration. This question has 0 answers so far.
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What is a Virtual Terminal? This question has 0 answers so far.
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Explain briefly functions of seven layers of OSI model with suitable diagrams. This question has 0 answers so far.
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Explain four levels of addresses used in an internet employing the TCP/IP protocol. This question has 0 answers so far.
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What is Guided Media Compare various guided medias in terms of Attenuation, Distortion, Noise, Throughput, Propagation Speed and Time . This question has 0 answers so far.
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Compare OSI and TCP/IP models. This question has 0 answers so far.
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What is multiplexing? What is the need of multiplexing? Explain TDM. This question has 0 answers so far.
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Define ISDN Discuss different types of subscriber loops. This question has 0 answers so far.
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Define Flow Control. Explain sliding window protocol with suitable example. This question has 0 answers so far.
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What is Error Control? Explain CRC with suitable example. This question has 0 answers so far.
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Define adaptive routing. Explain Distance Vector routing algorithm with example, This question has 0 answers so far.
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Congestion in a network can be avoided. How? This question has 0 answers so far.
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Define QS. Discuss different techniques of improving Qos. This question has 0 answers so far.
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What is a bridge? Discuss different types of bridge. This question has 0 answers so far.
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Explain the duties of Transport layer in detail. This question has 0 answers so far.
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Explain connection management. This question has 0 answers so far.
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Discuss various functions performed at presentation layer of OSI model with examples. This question has 0 answers so far.
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Flow control and error control is performed by transport layer as well as data link layer. Why? This question has 0 answers so far.
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Define computer network. Explain different types of networks. This question has 0 answers so far.
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What are the connection less and connection oriented services? This question has 0 answers so far.
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Differentiate between CAN, MAS and WAN. This question has 0 answers so far.
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Differentiate between simplex, half duplex & full duplex transmission modes. This question has 0 answers so far.
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How TCP provides reliability in the network This question has 0 answers so far.
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What is the difference between physical & logical address? This question has 0 answers so far.
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Discuss UDP datagram format. This question has 0 answers so far.
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Why is IP called best effort delivery protocol? This question has 0 answers so far.
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Differentiate between Broadcast, Multicast & Unicast. This question has 0 answers so far.
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How router boots up. This question has 0 answers so far.
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Define Shannon Capacity theorem. This question has 0 answers so far.
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Differentiate between guided ad unguided transmission media. Explan in detail. This question has 0 answers so far.
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Discuss 4 different topologies in detail with examples This question has 0 answers so far.
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Compare OSI and TCP/IP models. Discuss different layers & their functions briefly. This question has 0 answers so far.
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Differentiate between Circuit Switching & Packet Switching, This question has 0 answers so far.
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Discuss ISDN, its services & layers. This question has 0 answers so far.
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Are the flow control & error control mechanism handled at the Data Link Layer? If yes, describe the techniques with which it can be handled. If no, explain with appropriate reasons. This question has 0 answers so far.
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Differentiate between WDM, TOM & FDM. This question has 0 answers so far.
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Define repeaters, bridges, gateways & routers. This question has 0 answers so far.
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Show the header format for IP4 & explain the function of each field. This question has 0 answers so far.
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Distinguish between distance vector & link state routing. Explain with examples. This question has 0 answers so far.
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Differentiate between static & dynamic routing. This question has 0 answers so far.
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Compare TCP& UDP protocols. This question has 0 answers so far.
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Explain TCP packet format in detail. This question has 0 answers so far.
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What are the functions of senion layers, presentation layers & application layers in OSI model? This question has 0 answers so far.
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In OSI network architecture, the framing is done by (a) session layer (b) network layer (c) data link layer (d) none of the above This question has 0 answers so far.
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Which of the following communication modes support one-way traffic? (a) simplex (b) hall duplex (c) all of the above (d) none of the above This question has 0 answers so far.
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Which of the following is not a transmission medium? (a) telephone lines (c)modem (b) coaxial cables (d) microwave systems This question has 0 answers so far.
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What are the advantages of the ring topology? This question has 0 answers so far.
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What are the disadvantages of the mesh topology? This question has 0 answers so far.
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Explain Shannon Capacity theorem? This question has 0 answers so far.
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Differentiate between attenuation and distortion? This question has 0 answers so far.
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Differentiate between TDM and FDM? This question has 0 answers so far.
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Differentiate between static and dynamic routing? This question has 0 answers so far.
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Differentiate between Circuit switching and packet switching? This question has 0 answers so far.
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Discuss the different components required for data communication? This question has 0 answers so far.
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What are the advantages of having layered model for networking?Explain OSI model mentioning the different functions performed by different layers? This question has 0 answers so far.
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What do you understand by the error detection and error correction?Explain any one of the error correction technique with suitable example? This question has 0 answers so far.
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Write down a detailed note on ISDN? This question has 0 answers so far.
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What is the purpose of networking device? Explain the Repeaters networking devices. This question has 0 answers so far.
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What is the purpose of networking device? Explain the Routers networking devices. This question has 0 answers so far.
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What is the purpose of networking device? Explain the Bridges networking devices. This question has 0 answers so far.
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What is the purpose of networking device? Explain the Gateways networking devices. This question has 0 answers so far.
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What do you understand by routing? Explain any routing protocol in details? This question has 0 answers so far.
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Discuss any two protocols that are used at application/presentation layer? This question has 0 answers so far.
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Discuss the role of transport layer in details? This question has 0 answers so far.
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What do you understand by service and peer interfaces in a protocol?

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What are the different types of multiplexing commonly employed in a network?

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How do you define the throughput of a network? Calculate the bandwidth x delay product for a 1.5Mbps T1 link through a geo stationary satellite at a height of 35,900 Kms. The only delay is the speed of light propagation delay.

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What is a network adapter? Explain with a block diagram.

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Explain how spread spectrum is useful in communication in the "license-exempt frequency spectrum.

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Assume a sliding window protocol for a 1 Mbps point to point link to the moon which latency of 1.25 seconds and each frame carries 1 KB of data. What is the minimum number of bits you need for the sequence number.

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Differentiate between synchronous and asynchronous data in the FDDI.

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Why does the 802.11 (Wifi) Frame format require four address fields. Explain with the frame format diagram. 

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Explain the sequence of events in the Ethemet protocol once a collision has been detected by a sending adapter. In this context clearly explain the reasoning behind the "exponential backoff" strategy.

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Why CIDR is also called supernetting?

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Explain with suitable header diagrams how an IP packet of size 1420 bytes get fragmented when crossing a point to point link of MTU 532 bytes. (Only relevant fields may be shown in the header diagram).

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Use the Distance Vector Routing Protocol to obtain a final routing table for node A in the following topology.
                                                           

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What do you understand by Source Specific Multicast (SSM) and Any Source Multicast (ASM).

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In the context of MPLS what do you understand by destination based routing?

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Explain the PIM protocol with a suitable example.

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How is the checksum field calculated in the case of UDP?

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Explain the Silly Window Syndrome and provide an algorithm to prevent it from happening.

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Explain the three way handshake in TCP using a state diagram that moves CLIENTS from active and passive open states to the ESTB state.

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Differentiate between the Best effort service model and Qos service Models

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Briefly describe two different queuing models used in routers and compare their performances.

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Explain the "Slow Start" mechanism used by TCP to avoid congestion in the network.

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Name the two advantages of distributed processing. This question has 0 answers so far.
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Distinguish between baseband and broadband modes. This question has 0 answers so far.
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Describe ERROR CONTROL responsibility of Data Link Layer. This question has 0 answers so far.
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What is the difference between a port address, a logical address, and a physical address? This question has 0 answers so far.
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What is the difference between a port address, a logical address, and a physical address? This question has 0 answers so far.
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Assuming the bandwidth as 3000Hz and SNR as 3162 of a communication channel .What will be the capacity of the channel? This question has 0 answers so far.
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Give two applications of FDM. This question has 0 answers so far.
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How do guided media differ from unguided media? This question has 0 answers so far.
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Give advantages of cyclic code. This question has 0 answers so far.
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What is session routing? This question has 0 answers so far.
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Differentiate between repeater and bridge This question has 0 answers so far.
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What are the reasons for using layered protocols? List the ways in which the OSI reference model and TCP/IP model are same and the ways they differ. This question has 0 answers so far.
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What do you understand by the impairment of transmission? Describe three causes of it. This question has 0 answers so far.
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After giving the diagram of a fibre-optic cable, describe its components. What is the concept of critical angle used in optical communication? This question has 0 answers so far.
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What are the major advantages of optical fibre? Discuss the modes of propagation along optical channel. This question has 0 answers so far.
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What do you mean by switching? Explain the difference between circuit switching,packet switching and message switching. This question has 0 answers so far.
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A computer with many terminals will usually be set up to poll the terminals to see if they have information to send. A computer with only a few terminals will allow the terminals to interrupt it. What are the trade-offs between the two methods of operation? This question has 0 answers so far.
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Describe the different steps involved in PPP negotiation process. This question has 0 answers so far.
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With the help of an example, explain cyclic Redundancy check method of error handling in communication. This question has 0 answers so far.
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In respect of a single organization, identify different reasons to employ bridge devices.. This question has 0 answers so far.
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Describe any one technique for controlling the congestion that can be used in datagram subnets. This question has 0 answers so far.
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In what sense, dynamic routing algorithms are better than static routing algorithms.Describe one dynamic routing algorithm. This question has 0 answers so far.
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Draw a diagram of TCP header and explain the functions of its various fields. This question has 0 answers so far.
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Describe three-way handshaking method for establishing a transport connection. This question has 0 answers so far.
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Describe the DNS. This question has 0 answers so far.
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Describe the DHCP. This question has 0 answers so far.
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Describe the Transposition cipher. This question has 0 answers so far.
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Describe the Data compression. This question has 0 answers so far.
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Discuss dilleront types of transmission impairments. This question has 0 answers so far.
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- Lisi different types of connectors used for UTT', Coaxial, and Fiber-opticcabling This question has 0 answers so far.
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List important features of ISDN & broadband ISDN. This question has 0 answers so far.
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Discuss packet Switching. This question has 0 answers so far.
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Discuss logical, physical, and port addressing. This question has 0 answers so far.
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Discuss advantages and disadvantages of different types of network topologies. This question has 0 answers so far.
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What is DTE-DCE interface? Discuss V-series standards of MODEM. This question has 0 answers so far.
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Write TDM discuss the Time slots and frames. This question has 0 answers so far.
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Write TDM discuss the Interleaving. This question has 0 answers so far.
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Write TDM discuss the Pulse saffing. This question has 0 answers so far.
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Compare and contrast byte stuffing and bit stuffing, which technique is used in byte oriented protocols and bit oriented protocols. This question has 0 answers so far.
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Discuss any four networking devices. This question has 0 answers so far.
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What is two-node loop instability problem in distance vector routing? Discuss its three solutions. This question has 0 answers so far.
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Describe different design issues for transport and session layers of OSI model. This question has 0 answers so far.
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Discuss the frame format of TCP segment and IP packet. This question has 0 answers so far.
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a. Differentiate between connection oriented and connectionless services.

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b. Define routing algorithm. Explain the Bellman-Ford algorithm with an example.

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c. A 64-kilobyte message is to be transmitted over two hops in a network. The network limits packets to a maximum size of 2 kilobytes, and each packet has a 32 - byte header. The transmission lines in the network are error free and have a speed of 50 Mbps. Each hop is 1000 km long. How long does it take to get the message from source to destination? 

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a. With neat diagram explain leaky bucket algorithm used for policing.

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b. Explain the FIFO and priority queue scheduling for managing traffic at packet level.

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c. Write a note on closed loop control in packet switching network.

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a. Explain the format of IPV4 basic header

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b. With neat diagram, explain UDP datagram.

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c. Write a note on address resolution protocol.

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a. Explain the three-way handshake for establishing a TCP connection.

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b. Write a note on RIP protocol.

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c. Explain the border gateway protocol.

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a. Define domain name system. Explain DNS message format

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b. Explain in detail any two major categories of threats to network security.

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c. Write a note on network management system.

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a. Explain the overview of differentiated services operation of QOS with neat diagram.

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b. Explain multiprotocol Lable switching (MPLS) and its packet format.

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c. Write a note on P2P connection in context with overlay networks.

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a. Define data compression. Explain overview of digital voice process in multimedia networking. 

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b.Explain in brief SIP.

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c. Write a short note on H-323 protocol.

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a. Explain types of attack in Ad-hoc networks.

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b. Explain LEACH clustering protocol in wireless sensor network.

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c. Write a note on Zig-Bee technology.

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How flow control is different from congestion control? This question has 0 answers so far.
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Difference between bit rate and baud rate? Explain with example. This question has 0 answers so far.
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What is difference between Classful addressing and Classless IP addressing? This question has 0 answers so far.
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What is major advantages of STP over UTP? This question has 0 answers so far.
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Differentiate between Intranet, Internet and internet? This question has 0 answers so far.
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Difference between baseband transmission and broad band transmission? This question has 0 answers so far.
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What do you mean by Network Topology? Discuss the problems and benefits of any three topologies? This question has 0 answers so far.
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What is mouting? Differentiate between distance vector routing and link state routing? This question has 0 answers so far.
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Calculate the throughput of the pure and slotted ALOHA channel. Which Channel gives better throughput and why? This question has 0 answers so far.
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Define Stop and Wait ARQ protocol. Explain the reason for moving from Stop and wait ARQ protocol to the GO-Back-N ARQ protocol? This question has 0 answers so far.
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Contrast and Compare ISO-OSI and TCP/IP networking models? This question has 0 answers so far.
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What is the need for adaptive routing algorithms? Explain in details? This question has 0 answers so far.
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Explain ATM reference model? Why does ATM use small fixed length cell? What is ATM signaling? This question has 0 answers so far.
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Write short notes on ISDN? This question has 0 answers so far.
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What is Tunneling? This question has 0 answers so far.
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What is collision? How does CSMA/CD detect and correct collision? This question has 0 answers so far.
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Draw and explain packet format of Transmission control protocol? Explain various steps that are followed in releasing a TCP connection? This question has 0 answers so far.
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Why transport layer protocols like TCP and UDP are called end-to-end protocols.What is the difference between them? This question has 0 answers so far.
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theExplain the Leaky bucket algorithm to control congestion. Explain how drawbacks of this are overcome in token bucket algorithms? This question has 0 answers so far.
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Difference between IPv4 and IPV6? Draw and explain the IPV4 protocol packet format? This question has 0 answers so far.
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Evaluate the maximum bit rate for a channel having bandwidth 3100Hz and S/N ratio of 20 dB. This question has 0 answers so far.
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What is the maximum number of subnets in each case? (i)Class A; mask 255.255.192.0 (ii) Class B; mask 255.255.192.0 (iii) Class C; mask 255.255.255.192 (iv) Class C; mask 255.255.255.240 This question has 0 answers so far.
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Differentiate between:

(a) TCP and UDP

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Differentiate between:

(b) Baseband Coaxial Cable and Broadband Coaxial Cable

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Differentiate between:

(c) ALOHA and Slotted ALOHA

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Differentiate between:

(d) Circuit switching and packet switching.

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Differentiate between:

(e) Adaptive and non-adaptive routing algorithms.

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Discuss the various devices used for Networking.

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(a) Is 3.54.81.76 a class A, B, C, or D IP address? What are the network ID and host ID in decimal notation? Assume that subnets are not used. 

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(b) Describe a hybrid topology with a star backbone and four rings networks.

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What is the difference between a protocol and a service interface?Explain your answer in terms of ISO seven layer model. 

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Given the network topology below, use a link state algorithm to computer the shortest path from A to all other nodes. Make sure to show the results of the computation at each step. 

                


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(a) What is Channel Allocation problem?


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(b) Explain Logical Address, Physical Address and port address with the help of example.

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(c) What is latency and throughput?

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Discuss the various error detection and correction techniques in detail.Provide example for each technique. 

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Write short notes on :

(a) LAN, MAN and WAN 

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Write short notes on :

(b) Sliding Window Protocol

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Write short notes on :

(C) Narrowband ISDN and Broadband ISDN

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Attempt the following:

(a) Differentiate between circuit switching, packet switching and message switching. 

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Attempt the following:

(b) Differentiate between adaptive and non-adaptive routing algorithms.

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Attempt the following:

(c) Explain parity bit error detection method in detail.

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Attempt the following:

(d) Differentiate between narrowband ISDN, broadband ISDN

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Attempt the following:

(e) Explain Subneting using an example.

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(a) Compute the CRC for a 10-bit sequence 1010011110 and a divisor of 1011. 

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(b) Give the header format of ATM Cell. Also explain the semantics of each filed in the header. 

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a) Explain Channel allocation problem and its solution algorithm in detail.Provide an example to illustrate the problem and its solution. 

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(a) Discuss the various issues in designing Data link layer in detail.

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(b) Explain sliding window protocol in detail and using an example.

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a) Explain the network layer in the internet and the network layer in ATM networks in detail. Differentiate in Between these two:- 

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A router has the following (CIDR) entries in its routing table


For each of the following IP addresses, what does the router do if a packet with that address arrives? 

(i) 135.46.63.10

(ii) 135.46.57.14

(iii) 135.46.52.2

(iv) 192.53.40.7

(v) 192.53.56.7

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Explain the cable in detail.

(a) Baseband Coaxial Cable

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Explain the cable in detail.

(b) Broadband Coaxial cable

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Explain the cable in detail.

(c) Fiber cable


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Write short note on:

(a) Domain Name Registration & Registrars 

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Write short note on:

(b) Satellite networks

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Write short note on:

c) Network devices

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Differentiate between the blowing-

(a) LAN, MAN and WAN                            (b) DTE vs DCE interface 

(b) Guided vs. Unguided Media              (d) RIP vs OSPE OSPF 

(c) Internet vs. Intranet                           (f) OSI medel vs. TCP Model

(e) Flow control vs Error control             (h) Distortion vs. Noise 

(i) TDM, WDN and FDM                            (j) Synchronous vs. Asynchronous protocols.

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a) "IF R<=C then tranmission may be complished without error in the presence of noice. True or false ? Explain with the help of Shannor Theorem.

(b) Compare various mexias in terms of their Attenuation Distortion, Noise, Throughout, Propagation speed and time.

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a) find the maximum delta rate of a noisy channel whose bandwidth is 3000Hz and Signal to thermal noise ratio is 30db? Can we improve it further by any means? Justify your answer.

(b) What are the two reasons for using layered protocol? Draw a neat diagram of OSI layers and explain functioning of each layer in brief .

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(a) Wgat are the essentiai difference between circuit switching and Packet switching with reference to following parameters :-

(i) Cali setup required                                  (ii) Dedicated Physical path

(iii) Is each pocket follow same path         (iv) Do packet arrive in order

(v) Is a switch crash fetal                            (vi) How much bandwidth available?

(vii) Time of possible congestion.              (viii) Potentially wasted bandwidth

(ix) Store and forward transnission           (x) Transparency

(xi) Charging                                                 

(b) What are the three features provided by PPP layer? Draw and explain Pep full frame format.

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(a) Wgat are the essentiai difference between circuit switching and Packet switching with reference to following parameters :-

(i) Cali setup required                                  (ii) Dedicated Physical path

(iii) Is each pocket follow same path         (iv) Do packet arrive in order

(v) Is a switch crash fetal                            (vi) How much bandwidth available?

(vii) Time of possible congestion.              (viii) Potentially wasted bandwidth

(ix) Store and forward transnission           (x) Transparency

(xi) Charging                                                 

(b) What are the three features provided by PPP layer? Draw and explain Pep full frame format.

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(a) What we the differences between characters oriented protocols and bit-oriented protocols? Give example of each one.

(b) Describe in brief ISDN. its services, layers and broadband ISDN. 

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(a) Place following devices in their respective OSI layer at which they function Differentiate on the basis of the services they offered:

(i) Repeater    (ii)Bridge   (iii) Gateway (iv) Routers (v) Switches

(b) What is rating? Explain various routing algorithms with neat diagrams.

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ta) What is congestion? Draw a line graph which shows the relationship between packet sent and packet delivered and elect of congestion

(b) What are the various congestion control algorithms? Explain in brief.

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(a) What are the various fonctions performed by transport layer? Describe in brief.

(b) At the transport layer TCP protocol gives guaranteed delivery. It uses the services of it layer which itself is actuallyun-guaranteed best effort delivery. How TCP could manager to do so?

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(a) Flow control and error control is performed by transport layer as well as data link layer Are they different or it's a repetition? Explain.

(b) What are the various functions performed at Application layer? Name any two protocols used at Applicatation layer and explain then in brief.

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Describe different technical specifications of UTP, Coaxial cable and Fiber optic cable as transmission media. 

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Explain the algorithm which forms the basis for Distance vector Routing? List its advantage and disadvantages. 

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What is Classful addressing? Discuss the role of Netid, Hostid, Mask, Subnetting and Supernetting. 

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Discuss responsibilities of Transport layer in OSI model. Explain the three-way handshake to establish the connection.

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(a) Discuss different types of Network Models and topology.

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(b) Distinguish between FDM, TDM and WDM.

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(c) Describe three Internet working Devices.

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(d) Discuss design responsibilities of Data Link layer of OSI Model.

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(e) What is two-node loop instability problem? Discuss its two solutions.

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Discuss the following:

(a) DTE-DCE Interface

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(b) Different types of Transmission Impairments.

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(c) Design responsibility of transport layer in OSI model. 

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Discuss the following w.l.t error detection and correction

(a) Redundancy 

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Discuss the following w.l.t error detection and correction

(b) Hamming Code

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Discuss the following w.l.t error detection and correction

(c) Checksum

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Discuss the following w.r.t ISDN

(a) BRI 

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Discuss the following w.r.t ISDN

(b) PRI

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Discuss the following w.r.t ISDN

(c) Different Reference points

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Explain the functionalities for the following: -

(a) Application Layer

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Explain the functionalities for the following: -

(b) Session Layer

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Explain the functionalities for the following: -

(c) Presentation Layer

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(a) Explain multimode and single mode for propagating light along optical channels.

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(b) Discus various design issues for presentation and application layer of OSI model.

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(a) What is the role of DTE-DCE interface in internetworking? Explain with some examples.

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(b) Describe the three types of transmission impairment.

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(á) Discuss LRC, VRC and CRC error detection mechanisms.

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(b) What is Normal response mode and asynchronous balanced mode in data link control protocols. 

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(a) What is Synchronous Time-division multiplexing? Explain the process of Interleaving in TDM. 

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(b) What is Broadband ISDN? How BRI and PRI works? 

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(a) What is a Router? How router boots up? Explain the role of IOS in routers.

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(b) What is flooding in routing? Discuss the working of any dynamic routing algorithm.

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(a) Explain the different types of classes in IPV4 addressing (classfull addressing)

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(b) Describe distance vector and link state routing algorithm.

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(a) What is port addressing? list three ICANN ranges for port addressing.

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(a) Compare client-server and peer-to-peer application layer Paradigms.

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 With respect to TCP discus the role of the following:-

(i) Sequence Number

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With respect to TCP discus the role of the following:-

(ii) Acknowledgement Number. 

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With respect to TCP discus the role of the following:-

(iii) Window size

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With respect to TCP discus the role of the following:-

(iv) Urgent points.

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With respect to UDP discus the role of the following:-

(i) Pseudo header 

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With respect to UDP discus the role of the following:-

(ii) Destination port number

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With respect to UDP discus the role of the following:-

(iii) Length field.

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(a) What are the two types of line configuration?

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(b) List four design issues in DLL of Ost model.

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(c) What is bandwidth-delay product?

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d) Name two types of connectors for fiber-opertebles.

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(d) A multiplexer combines four 100kbps channels cables. Using a time slot of 2 bits. What is the frame rate and frame duration?

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(f) What is dynamic routing?

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(g) What is SYN flooding alteak?

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(h) Define Piggybacking and its benefit.

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(i) What does the Shannon capacity have to do with deta communication?

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(j) What is the use of sockets in process-10-process communication?

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