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Computer Networking

Computer Networking
Which of the following protocol is connection-oriented?

IPX
UDP
NetBEUI
TCP

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Computer Networking
A group of 2m - 1 routers are interconnected in a centralized binary tree, with router at each tree node. Router I communicate with router J by sending a message to the root of the tree. The root then sends the message back down to J. Then find the mean router-router path length.

2 (m - 2)
2 (2m - 1)
m - 1
(2m - l)/mJ

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Computer Networking
You are working with a class C network. You are required to configure it for five subnets, each of which will support 25 nodes. What subnet should you use?

255.255.255.240
255.255.255.224
255.255.255.0
255.255.255.248
255.255.255.252

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Computer Networking
How many hosts are attached to each of the local area networks at your site?

254
None of these
256
128
64

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Computer Networking
When a host knows its physical address but not its IP address, it can use _____.

IGMP
None of these
RARP
ARP
ICMP

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Computer Networking
Which layer of international standard organization's OSI model is responsible for creating and recognizing frame boundaries?

physical layer
data link layer
transport layer
network layer
None of these

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