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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.
What are the Advantages of adaptive routing (1) An adaptive routing method can improve performance, as realised by the network user. (2) An adaptive routing method can aid
Two hosts are connected by a path made of four links as shown in the figure below. The links are of data rate R = 2 Mbps each. Host A has a file of size F = 1,000,000 bytes to tran
Single Program Multiple Date A common style of writing data parallel programs for MIMD computers is SPMD (single program, multiple data): all the processors implement the same
Configure Spanning Tree Step 1: Examine the default configuration of 802.1D STP. On each switch, display the spanning tree table with the show spanning-tree command. R
How many types of twisted pair cable are there We can find two types of twisted pair cables, namely: Unshielded Twisted Pair Cable (UTP) and Shielded Twisted Pair Cable (STP).
What is Stateful Multi-Layer Inspection (SMLI) They are considered as the third generation of firewall technology and usually combine the facilities of the above two. They are
Q. What do you understand by OSI? Ans: The Open System Interconnection (OSI) reference model illustrates how information from a software application in one computer goes throug
Q. Use of Infrared? - Frequencies among 300 GHz and 400 THz - Short-range communication - High frequencies can't penetrate walls - Necessitate line-of-sight propagati
IGRP uses flash updates, poison reverse updates, hold down times, and divide horizon. How often does it broadcast its routing table updates? Ans) 90 seconds
Session layer examples are Netbios Names, SQL, NFS, X Windows, and RPC.
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