Computer Networking
Bulletin board system

is a public access message system
None of these
is a modem capable of accepting commands
converts analog signals to digital signals
converts digital signals to analog signals

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Computer Networking
Which of the following is true regarding VLANs?

VTP is used to send VLAN information to switches in a configured VTP domain.
You should not have more than 10 switches in the same VTP domain.
You must have at least two VLANs defined in every Cisco switched network.
All VLANs are configured at the fastest switch and, by default, propagate this information to all other switches.

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Computer Networking
You have created a named access list called Blocksales. Which of the following is a valid command for applying this to packets trying to enter interface s0 of your router?

(config-if)# ip access-group Blocksales in
(config-if)# blocksales ip access-list in
(config)# ip access-group 110 in
(config-if)# ip access-group 110 in

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Computer Networking
The Internet Control Message Protocol (ICMP)

All of these
allows gateways to send error a control messages to other gateways or hosts
None of these
provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem

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