Both operands in a comparison expression must be the same ____.
A. value
B. name
C. length
D. data type
Answer: D
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This is a term for describing a UTP cable carrying 1000Mbps (1 gigabit) or more of data up to a length of 100 meters
What will be an ideal response?
Write and run a simple shell script named echomyvar that displays the PID (Sobell, page 480) of the process running the script and value of the variable named myvar. Display the PID of the interactive shell you are working with. What is the value of the variable within the process running the shell script? Are the interactive shell and the shell running the script run by the same or different processes (do they have the same PID)?
$ cat echomyvar echo The PID of this process is $$ echo The value of myvar is: $myvar $ echo $$ 2651 $ ./echomyvar The PID of this process is 4392 The value of myvar is:
Which of the following are reasons that CSMA/CA is used?
a. wireless communication is half-duplex b. eavesdropping c. hidden node problem d. atmospheric pollutants
FTP offers more security than TFTP.
a. true b. false