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Computer Networking

Computer Networking
What operates in the Data Link and the Network layer?

NIC
None of these
Bridge
Brouter
Router

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Computer Networking
What are the distinct functions of layer 2 switching that increase available bandwidth on the network?1. Address learning2. Routing3. Forwarding and filtering4. Creating network loops5. Loop avoidance6. IP addressing

1, 3 and 5
3 and 5
2 and 6
2, 4 and 6

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Computer Networking
Eight stations are competing for the use of the shared channel using the modified Adaptive free walk protocol by Gallager. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention?

1 slots
5 slots
14 slots
None of these
10 slots

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Computer Networking
You have a network ID of 134.57.0.0 with 8 subnets. You need to allow the largest possible number of host IDs per subnet. Which subnet mask should you assign?

255.255.240.0
255.255.224.0
255.255.248.0
255.255.252.0
255.255.255.255

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Computer Networking
Which of the following are valid ways to refer only to host 172.16.30.55 in an IP access list? 1. 172.16.30.55 0.0.0.255 2. 172.16.30.55 0.0.0.0 3. any 172.16.30.55 4. host 172.16.30.55 5. 0.0.0.0 172.16.30.55 6. ip any 172.16.30.55

1 and 4
1, 4 and 6
3 and 5
2 and 4

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Computer Networking
The X.25 standard specifies a

technique for start-stop data
technique for dial access
data bit rate
DTE/DCE interface
None of these

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