Interpret the following sequence of characters (in hexadecimal) received by a TE
ID: 3538229 • Letter: I
Question
Interpret the following sequence of characters (in hexadecimal) received by a TELNET client or server:a. FF FB 01 b. FF FE 01 c. FF F4 d. FF F9
Interpret the following sequence of characters (in hexadecimal) received by a TELNET client or server:
a. FF FB 01 b. FF FE 01 c. FF F4 d. FF F9
Interpret the following sequence of characters (in hexadecimal) received by a TELNET client or server:
a. FF FB 01 b. FF FE 01 c. FF F4 d. FF F9
Interpret the following sequence of characters (in hexadecimal) received by a TELNET client or server:
a. FF FB 01 b. FF FE 01 c. FF F4 d. FF F9
Explanation / Answer
a. FF FB 01
FF Interpret as command
FB Agreement to use the specified option.
01 Echo Data
Thus, causes server to echo back all keystrokes.
b. FF FE 01
FF Interpret as command
FE Demand to stop using specified option.
01 Echo data
Thus, causes server to STOP echoing back keystrokes.
c. FF F4
FF Interpret as command
F4 Interrupt current process.
Thus, stops current on-going telnet process.
d. FF F9
FF Interpret as command
F9 End of input for half-duplex connections. (command also known as 'Go ahead!' )
Thus, Resumes interrupted process.
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