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?
-
:r
-
:n
-
:w
-
:e
Correct Answer: D
Question No.83
Regarding the command: nice -5 /usr/bin/prog
Which of the following statements is correct?
-
/usr/bin/prog is executed with a nice level of -5.
-
/usr/bin/prog is executed with a nice level of 5.
-
/usr/bin/prog is executed with a priority of -5.
-
/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?
-
magic
-
type
-
file
-
pmagic
-
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?
-
cat -n 10 filename
-
dump -n 10 filename
-
head -n 10 filename
-
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.)
-
find /tmp -uid root -print
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find -path /tmp -uid root
-
find /tmp -user root -print
-
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?
-
i (lowercase)
-
P (uppercase)
-
p (lowercase)
-
U (uppercase)
-
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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