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Computer Networking

Computer Networking
On a class B network, how many subnets are available with a subnet mask of 248?

2
30
6
126
62

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Computer Networking
The communication mode that supports data in both directions at the same time is

full-duplex
simplex
half-duplex
None of these
multiplex

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Computer Networking
You are working with three networks that have the network IDs 192.168.5.0, 192.168.6.0, and 192.168.7.0. What subnet mask can you use to combine these addresses into one?

255.255.252.0
255.255.255.252
255.255.255.240
225.255.254.0

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Computer Networking
You are working with a network that is 172.16.0.0 and would like to have the maximum number of hosts per subnet. This assumes support for eight subnets. What subnet mask should you use?

255.255.255.0
255.255.240.0
255.255.192.0
255.255.248.0
255.255.224.0

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

ARP
ICMP
IGMP
None of these
RARP

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

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

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