Computer Networking
Suppose that you have a customer who has a central HQ and six branch offices. They anticipate adding six more branches in the near future. They wish to implement a WAN technology that will allow the branches to economically connect to HQ and you have no free ports on the HQ router. Which of the following would you recommend?

ISDN
Frame Relay
PPP
HDLC

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Computer Networking
You want to create a standard access list that denies the subnet of the following host: 172.16.50.172/20. Which of the following would you start your list with?

access-list 10 deny 172.16.48.0 0.0.15.255
access-list 10 deny 172.16.64.0 0.0.31.255
access-list 10 deny 172.16.0.0 0.0.255.255
access-list 10 deny 172.16.48.0 255.255.240.0

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Computer Networking
What does a VLAN do?

Provides multiple collision domains on one switch port.
Breaks up broadcast domains in a layer 2 switch internetwork.
Acts as the fastest port to all servers.
Provides multiple broadcast domains within a single collision domain.

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