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Q.

The data communication support should include, but is not restricted to

A

file transfer and transaction processing

B

file and database access

C

terminal support, electronic mail and voice grams.

D

All of the above

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1.

The application layer of a network

A

establishes, maintains, and terminates virtual circuits

B

defines the user's port into the network

C

consists of software being run on the computer connected to the network

D

All of the above

E

None of the above

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2.

Which of the following is the address of the router?

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The IP address

B

The TCP address

C

The subnet mask

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The default gateway

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Which of the following digits are known as the sub-address digits (for use by the user) of the Network User Address (NUA)?

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05-Jul

B

01-Apr

C

08-Dec

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13-14

E

None of the above

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4.

Which address is the loopback address?

A

0.0.0.1

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127.0.0.0

C

127.0.0.1

D

255.255.255.255

E

None of the above

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Which of the following signals is not standard RS - 232-C signal?

A

VDR

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RTS

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CTS

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DSR

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None of the above

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