Telnet — Test 1

Correct Answer: C. C. Tcp port number 23
Explanation: TCP port 21 is used for FTP, TCP port 22 is used for SSH and TCP port 25 is used for SMTP. Telnet provides access to a command line interface on a remote computer using the TCP port number 23.

Correct Answer: B. B. 8 bits
Explanation: Telnet provides a bi-directional, 8-bit byte oriented communications facility through which operations are sent as 8-bit bytes for the server to interpret.

Correct Answer: A. A. Windows
Explanation: AbsoluteTelnet was originally released in 1999. It was developed by Brian Pence of Celestial Software.

Correct Answer: D. D. 255
Explanation: If we want that a character be interpreted by the client instead of server, we use the IAC character. If IAC is followed by any other code than IAC, the client interprets it as a character.

Correct Answer: A. A. Each character typed is sent by the client to the server
Explanation: In character mode, each character that the user is typing is immediately sent to the server which then interprets it only after the complete operation command is received.

Correct Answer: A. A. Default mode
Explanation: In the default mode, the client does not send each character typed by the user to the server, thus saving the amount of packet transmissions required for executing each operation. But the server has to remain idle until the client sends the completed line wasting a lot of time.

Correct Answer: A. A. Telnet
Explanation: Telnet is an application layer protocol that provides access to the command-line interface on a remote host. Telnet stands for teletype network.

Correct Answer: B. B. Most text typed is immediately sent to the remote host for processing
Explanation: In character at a time mode, the typed text is sent immediately to the remote host while the user is typing. Another mode used in Telnet is “Old line by line” mode in which only completed lines are sent to the remote host.

Correct Answer: A. A. Telnet
Explanation: Telnet provides access to the command-line interface on a remote computer. One can login to the computer from the command-line interface.

Correct Answer: C. C. Telnet://www.sanfoundry.com
Explanation: telnet://” is the header to be used to initiate a Telnet connection to a web server. One can browse the website using telnet if they are authorized to.