Telnet - Computer Networks Questions and Answers

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1.

Telnet protocol is used to establish a connection to

   A.) TCP port number 21
   B.) TCP port number 22
   C.) TCP port number 23
   D.) TCP port number 24

Answer: Option 'C'

TCP port number 23

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2.

Which one of the following is not true?

   A.) client programs interact with NVT
   B.) server translates NVT operations
   C.) telnet defines a network virtual terminal (NVT) standard
   D.) None of these

Answer: Option 'C'

telnet defines a network virtual terminal (NVT) standard

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3.

If we want that a character be interpreted by the client instead of server

   A.) escape character has to be used
   B.) control functions has to be disabled
   C.) it is not possible
   D.) none of these

Answer: Option 'A'

escape character has to be used

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4.

All telnet operations are sent as

   A.) 4 bytes
   B.) 8 bytes
   C.) 16 bytes
   D.) 32 bytes

Answer: Option 'B'

8 bytes

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5.

Which operating mode of telnet is full duplex?

   A.) default mode
   B.) server mode
   C.) line mode
   D.) none of these

Answer: Option 'C'

line mode

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6.

AbsoluteTelnet is a telnet client for

   A.) linux
   B.) windows
   C.) mac
   D.) none of these

Answer: Option 'B'

windows

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7.

Which one of the following is not correct?

   A.) telnet is a general purpose client-server program
   B.) telnet lets user access an application on a remote computer
   C.) telnet can also be used for file transfer
   D.) none of these

Answer: Option 'C'

telnet can also be used for file transfer

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8.

The decimal code of interpret as command (IAC) character is

   A.) 252
   B.) 253
   C.) 254
   D.) 255

Answer: Option 'D'

255

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9.

In telnet, the client echoes the character on the screen but does not send it until a whole line is completed in

   A.) default mode
   B.) character mode
   C.) server mode
   D.) none of these

Answer: Option 'A'

default mode

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