Computer Networking
The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?

An alias for the computer name
A logical address that identifies the workstation
A physical address that is assigned by the manufacturer
The logical domain address for the workstation
A physical address that is randomly assigned each time the computer is started

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Computer Networking
What does the passive command provide to dynamic routing protocols?

Stops the router from sending any dynamic updates.
Stops an interface from sending periodic dynamic updates but not from receiving updates.
Stops an interface from sending or receiving periodic dynamic updates.
Stops the router from receiving any dynamic updates.

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Computer Networking
You need to create an access list that will prevent hosts in the network range of 192.168.160.0 to 192.168.191.0. Which of the following lists will you use?

access-list 10 deny 192.168.160.0 0.0.191.255
access-list 10 deny 192.168.160.0 0.0.31.255
access-list 10 deny 192.168.160.0 255.255.224.0
access-list 10 deny 192.168.0.0 0.0.31.255

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Computer Networking
RS-449/442-A/423-A is

None of these
the ratio of the number of data units in error to the total number of data units
a check bit appended to an array of binary digits to make the sum of the all the binary digits
a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression the resulting expression will not conform to the rules of construction and
a set of physical layer standards developed by EIA and intended to replace RS-232-

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