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Question No.101

Which of the following signals is sent to a process when the key combination CTRL C is pressed on the keyboard?

1. SIGTERM

2. SIGINT

3. SIGSTOP

4. SIGKILL

Correct Answer: B

Question No.102

From a Bash shell, which of the following commands directly executes the instruction from the file

/usr/local/bin/runme.sh without starting a subshell? (Please select TWO answers.)

1. source /usr/local/bin/runme.sh

2. . /usr/local/bin/runme.sh

3. /bin/bash /usr/local/bin/runme.sh

4. /usr/local/bin/runme.sh

5. run /usr/local/bin/runme.sh

Correct Answer: AB

Question No.103

What is the difference between the i and a commands of the vi editor?

1. i (interactive) requires the user to explicitly switch between vi modes whereas a (automatic) switches modesautomatically.

2. i (insert) inserts text before the current cursor position whereas a (append) inserts text after the cursor.

3. i (independent rows) starts every new line at the first character whereas a (aligned rows) keeps the indentation of the previous line.

4. i (interrupt) temporarily suspends editing of a file to the background whereas a (abort) terminates editing.

Correct Answer: B

Question No.104

What does the symbol mean in the following grep regular expression: grep #39;^d[aei]\ d$#39; /usr/share/dict/words

1. Match the preceding character set ([aei]) one or more times.

2. Match the preceding character set ([aei]) zero or more times.

3. Match the preceding character set ([aei]) zero or one times.

4. Match a literal symbol.

Correct Answer: A

Question No.105

In Bash, inserting 1gt;amp;2 after a command redirects

1. standard error to standard input.

2. standard input to standard error.

3. standard output to standard error.

4. standard error to standard output.

5. standard output to standard input.

Correct Answer: C

Question No.106

Which of the following commands moves and resumes in the background the last stopped shell job?

1. run

2. bg

3. fg

4. back

Correct Answer: B

Question No.107

Which of the following statements is correct regarding the command foo 1gt; bar?

1. The stdout from the command foo is appended to the file bar.

2. The stdout from the command foo overwrites the file bar.

3. The command foo receives its stdin from the file bar.

4. The command foo receives its stdin from the stdout of the command bar.

5. The stderr from the command foo is saved to the file bar.

Correct Answer: B

Question No.108

Which of the following commands is used to change options and positional parameters for a running Bash?

1. history

2. set

3. bashconf

4. setsh

5. envsetup

Correct Answer: B

Question No.109

You are trying to make a hard link to an ordinary file but ln returns an error. Which of the following could cause this?

1. The source file is hidden.

2. The source file is read-only.

3. The source file is a shell script.

4. You do not own the source file.

5. The source and the target are on different filesystems.

Correct Answer: E

Question No.110

Which of the following commands can be used to create a USB storage media from a disk image?

1. gdisk

2. dd

3. cc

4. fdisk

5. mount

Correct Answer: B

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