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Computer Networking

Computer Networking
Which of the following protocols are used to configure trunking on a switch?1. VLAN Trunk Protocol2. VLAN3. 802.1Q4. ISL

3 only
1, 3 and 4
1 only
3 and 4

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Computer Networking
Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost.

1/ (1 - F)
KIK (1 + F)
K I (K - P)
P I (K + 1)
None of these

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Computer Networking
A noiseless 3 KHz Channel transmits bits with binary level signals. What is the maximum data rate?

12 Kbps
24 Kbps.
6 Kbps
3 Kbps

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Computer Networking
An error-detecting code inserted as a field in a block of data to be transmitted is known as

flow control
Frame check sequence
Checksum
None of these
Error detecting code

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Computer Networking
You have a network ID of 134.57.0.0 and you need to divide it into multiple subnets in which at least 600 host IDs for each subnet are available. You desire to have the largest amount of subnets available. Which subnet mask should you assign?

255.255.240.0
255.255.224.0
255.255.255.0
255.255.248.0
255.255.255.255

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Computer Networking
Which command will copy the IOS to a backup host on your network?

copy start tftp
transfer IOS to 172.16.10.1
copy flash tftp
copy run start

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