Linux Bash Arithmetic Expressions Question:
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Ctrl-Z key combination:
a) generates a SIGINT signal
b) stops the process running in the shell
c) kills the process running in the shell
d) both (a) and (c)

Answer:

b) stops the process running in the shell
Explanation:
Ctrl-Z key combination generates a SIGTSTP signal and stops the process running in the shell.

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What is job number?
a) same as PID
b) a unique number, assigned to each job in shell
c) both (a) and (b)
d) none of the mentioned		Which command brings a background job into the foreground?
a) fg
b) bg
c) jobs %1
d) none of the mentioned