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Computer Networking

Computer Networking
What is the first octet range for a class A IP address?

192 - 223
192 - 255
1 - 127
1 - 126
128 - 191

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Computer Networking
Data are sent over pin _____ of the EIA-232 interface.

3
4
2
All of these

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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 network that has the network ID 192.168.10.0. What subnet should you use that supports four subnets and a maximum number of hosts?

255.255.255.192
255.255.255.252
255.255.255.224
255.255.255.240
255.255.255.248

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Computer Networking
You have 10 users plugged into a hub running 10Mbps half-duplex. There is a server connected to the switch running 10Mbps half-duplex as well. How much bandwidth does each host have to the server?

2 Mbps
10 Mbps
100 kbps
1 Mbps

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Computer Networking
You telnet to a router and make your necessary changes; now you want to end the Telnet session. What command do you type in?

close
disable
disconnect
exit

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