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QUESTION NO:15
Which of the following commands puts the output of the command date into the shell variable mydate?
A. mydate=”$(date)”
B. mydate=”exec date”
C. mydate=”$((date))”
D. mydate=”date”
E. mydate=”${date}”
Correct Answer: A
QUESTION NO:3
Which of the following commands prints the exit value of the most recently executed program in Bash?
A. echo $?
B. echo $#
C. echo $exit
D. echo $status
E. echo $and
Correct Answer: A
QUESTION NO:10
When the command echo $? outputs 1, which of the following statements are true?
A. It is the process ID of the echo command.
B. It is the process ID of the current shell.
C. It is the exit value of the command executed immediately before echo.
D. It is the exit value of the echo command.
Correct Answer: C
QUESTION NO:1
What is true regarding the statement beginning with #! that is found in the first line of a script?
A. It prevents the script from being executed until the ! is removed.
B. It specifies the path and the arguments of the interpreter used to run the script.
C. It is a comment that is ignored by the script.
D. It specifies the character encoding of the script.
Correct Answer: B
QUESTION NO:9
What output will the following command sequence produce?
echo \’1 2 3 4 5 6\’ | while read a b c; do echo result: $c $b $a; done
A. result: 3 4 5 6 2 1
B. result: 1 2 3 4 5 6
C. result: 6 5 4
D. result: 6 5 4 3 2 1
E. result: 3 2 1
Correct Answer: A
QUESTION NO:12
What output will the command seq 10 produce?
A. A continuous stream of numbers increasing in increments of 10 until stopped.
B. The numbers 1 through 10 with one number per line.
C. The numbers 0 through 9 with one number per line.
D. The number 10 to standard output.
Correct Answer: B
QUESTION NO:6
Which of the following commands are used to manage the environment and shell variables within a shell
process? (Choose TWO correct answers.)
A. export
B. init
C. reset
D. set
E. tset
Correct Answer: AD
QUESTION NO:8
Which of the following commands creates a function in Bash that outputs the sum of two numbers?
A. function sumitup { echo $(($1 $2)) ; }
B. command sumitup { echo $(($1 $2)) ; }
C. function sumitup { echo $1 $2 ; }
D. method sumitup { echo $1 $2 ; }
E. command sumitup { echo $1 $2 ; }
Correct Answer: A
QUESTION NO:11
Which command makes the shell variable named VARIABLE visible to subshells?
A. export $VARIABLE
B. export VARIABLE
C. set $VARIABLE
D. set VARIABLE
E. env VARIABLE
Correct Answer: B
QUESTION NO:4
Which of the following SQL statements will select the fields name and address from the contacts table?
A. SELECT (name, address) FROM contacts;
B. SELECT (name address) FROM contacts;
C. SELECT name, address FROM contacts;
D. SELECT name address FROM contacts;
Correct Answer: C
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