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Question:
(a) Show by means of a diagram the Ethernet frame structure and describe the six fields of the Ethernet frame structure.
(b) Explain the operation of the Carrier Sense Multiple Access/Collision Detection (CSMA/CD) contention technique used by Ethernet.
(c) Explain the characteristics of CSMA/CD in terms of:
i. Order of transmission. ii. Length of wait time before transmission takes place. iii. Network saturation. iv. Capture effect.
(d) What is the purpose of the terminator at each end of a bus in a bus topology.
(e) Explain the operation of a Token Ring topology for a LAN. Your answer should include
i. A description of the token passing process. ii. The specific IEEE standard. iii. The problems inherent with a ring topology.
Persistent and No persistent Connections HTTP can use both persistent and non persistent connection. By defaults uses persistent connections. Persistent Connections
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Name the physical interfaces that PPP can be configured on a Cisco router: Ans) A. Asynchronous serial B. HSSI C. ISDN D. Synchronous serial These four of th
What is the juncture at which the CPE ends and the local loop portion of the service starts? Ans) The demarcation or demarc is the juncture at which the CPE ends and the local
How many timers does IGRP has
Q. What are the benefits of layered network? Ans: Basic benefits of layered network are given below: - Complex systems will be broken down into understandable subsystems.
Categories of traditional Ethernet a) Baseband - digital signals using Manchester encoding b) 10Base2, 10-Base-T, 10Base5, 10Base-FL c) First number signifies data rate
QUESTION 1. A system analyst has to install a particular type of topology in a textile industry. (a) Describe using diagrams the three most common topologies in terms of nod
Notice repetition of information in routing table for node 1 as given above in the figure. We can see that switch has only outgoing connection, all traffic must goes that connec
Q. Show the CRC-Performance ? CRC-Performance CRC is able to detect all burst errors that affect an odd number of bits CRC is able to detect all burst errors of
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