Last Updated on May 20, 2021 by Admin
Linux Essentials Chapter 4 Exam Answer
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Question ID 327
Select all the applications that provide access to the Command Line Interface (CLI)?
(choose two)
- opera
- Virtual Terminal
- Terminal window
- firefox
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Question ID 328
Which environment variable contains a list of directories that is searched for commands to execute?
- PATH
- PS2
- PS1
- EXEC
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Question ID 329
Select the command that can report the location of a command:
- what
- where
- which
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Question ID 331
A pair of single quotes ( ‘ ) will prevent the shell from interpreting any metacharacter.
True or False?
- True
- False
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Question ID 332
A pair of double quotes ( ” ) will prevent the shell from interpreting any metacharacter.
True or False?
- True
- False
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Question ID 333
Using a pair of back quotes ( ` ) will cause a shell to execute the back-quoted text as a command and substitute the output back into the original command.
True or False?
- True
- False
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Question ID 334
Which of the following are glob characters?
(choose three)
- The asterisk “*”
- The question mark “?”
- The dash character “-“
- The square brackets “[” and “]”
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Question ID 337
The semicolon “;” can be used to separate multiple commands to be executed in order.
True or False?
- True
- False
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Question ID 338
The double ampersand characters ( && ) are used to separate commands to be executed conditionally, where if the command to the left of the ampersands fails, then the command to the right of the ampersands will be executed.
True or False?
- True
- False
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Question ID 339
To be able to output messages to the screen, use the _______ command:
- display
- type
- echo
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Question ID 340
The _______ command will print a list of the commands that you’ve previously executed.
- eval
- history
- list
- exec
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Question ID 341
To execute the same command as previously executed five commands ago, you would type:
- &5
- !-5
- @-5
- !5
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Question ID 342
The shell program interprets the commands you type into the terminal, into instructions that the Linux operating system can execute.
True or False?
- True
- False
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Question ID 343
The acronym CLI stands for:
- Command Line Interpreter
- Computer Link Interpreter
- Computer Line Interface
- Command Line Interface
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Question ID 344
Traditional UNIX command options used a single dash, like -a; _______ command options use two dashes like –all.
- LINUX
- Kernel
- GNU
- shell
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Question ID 345
The acronym GNU stands for:
- Gnu’s Not Unix
- Good News Unix
- Gnu’s Nearly Unix
- Go Next Unit
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Question ID 346
What one character treats the character that follows it as if it was surrounded by single quotes?
- #
- /
- %
- \
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Question ID 347
The main purpose of using glob characters is to be able to provide a command a list of filenames.
True or False?
- True
- False