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Repeaters
- Operate only in physical layer
- Connects two segments of the same LAN
- Both segments must be of the same protocol
- Only forwards frames; does not filter
What is NIC and WAN? NIC is short for Network Interface Card. This is a peripheral card that is joined to a PC in order to connect to a network. Each NIC has its own MAC addres
It is possible for a datagram to generate ICMP errors after it has been fragmented. For example, suppose that each of two fragments cannot be delivered. Seemingly, this would mean
Q. Modem stands for modulator - demodulator ? - Modulator are to creates an analog signal from binary data - Demodulator are to recovers the binary data from the modulated s
Recalling two FEC schemes for internet phone described. Suppose the first scheme generates a redundant chunk for every four original chunks. Suppose the second scheme uses a low-ra
Retransmission of packets The disadvantage of thronging away a correctly received packet is that the subsequent retransmission of the packet might be lost or garbled and
There are two types of ends in WAN (1)DTE (DATA TERMINAL EQUIPMENT) (2)DCE(DATA COMMUNICATION EQUIPMENT)
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
Can you define the architecture of TCP IP Protocol?
OSPF ( open Shortest Path First) Open shortest path first is a routing protocols developed for internet protocols networks by the interior gateway protocols working group
Q. What is Aspects of Security? - Security Attack: Any action whichcompromises the security of information owned by an organization. - Security Mechanism: A mechanism th
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