101-500 Real Exam Dumps Questions and answers 81-90

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Question No.81

What is the default nice level when a process is started using the nice command?

A.

-10

B.

10

C.

20

D.

0

Correct Answer: B

Question No.82

While editing a file in vi, the file changes due to another process. Without exiting vi, how can the file be reopened for editing with the new content?

  1. :r

  2. :n

  3. :w

  4. :e

Correct Answer: D

Question No.83

Regarding the command: nice -5 /usr/bin/prog

Which of the following statements is correct?

  1. /usr/bin/prog is executed with a nice level of -5.

  2. /usr/bin/prog is executed with a nice level of 5.

  3. /usr/bin/prog is executed with a priority of -5.

  4. /usr/bin/prog is executed with a priority of 5.

Correct Answer: B

Question No.84

Which of the following commands determines the type of a file by using a definition database file which contains information about all common file types?

  1. magic

  2. type

  3. file

  4. pmagic

  5. hash

Correct Answer: C

Question No.85

Which of the following commands will print the last 10 lines of a text file to the standard output?

  1. cat -n 10 filename

  2. dump -n 10 filename

  3. head -n 10 filename

  4. tail -n 10 filename

Correct Answer: D

Question No.86

Which of the following are valid stream redirection operators within Bash? (Choose THREE correct answers.)

A. lt;

B. lt;lt;lt;

C. gt;

D. gt;gt;gt;

E. %gt;

Correct Answer: ABC

Question No.87

Which of the following commands prints all files and directories within the /tmp directory or its subdirectories which are also owned by the user root? (Choose TWO correct answers.)

  1. find /tmp -uid root -print

  2. find -path /tmp -uid root

  3. find /tmp -user root -print

  4. find /tmp -user root

Correct Answer: CD

Question No.88

Which command is used in a Linux environment to create a new directory? (Specify ONLY the command without any path or parameters.)

Correct Answer: mkdir, /usr/bin/mkdir

Question No.89

Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line?

  1. i (lowercase)

  2. P (uppercase)

  3. p (lowercase)

  4. U (uppercase)

  5. u (lowercase)

    Correct Answer: C

    Question No.90

    What is the maximum niceness value that a regular user can assign to a process with the nice command when executing a new process?

    A.

    9

    B.

    19

    C.

    49

    D.

    99

    Correct Answer: B

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