Computer Networking
Which of the following allows devices on one network to communicate with devices on another network?

None of these
multiplexer
t-switch
gateway
modern

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

a set of physical layer standards developed by EIA and intended to replace RS-232-
None of these
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
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

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

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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?

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

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