Unix MCQ Online Test - Set 04 - ObjectiveBooks

Unix MCQ Online Test - Set 04

Practice Test: Question Set - 04

1. Which of the following shell's wildcards are used to match any number of characters including none?
    (A) [ijk]
    (B) [!ijk]
    (C) ?
    (D) *

2. Which column contains all details of the permissions of a file when you issue the ls -l command?
    (A) Second
    (B) Fourth
    (C) Third
    (D) First

3. Which is the earliest and most widely used shell that came with the UNIX system?
    (A) C shell
    (B) Korn shell
    (C) Bourne shell
    (D) Smith shell

4. You can append to a file instead of overwriting by using the
    (A) > symbols
    (B) >> symbols
    (C) < symbols
    (D) << symbols

5. Which option will be used with sort command to start sorting ofter the nth column of the (m+l)th field?
    (A) -m.n
    (B) +m.n
    (C) + n.m+1
    (D) +(m+l).n

6. The ls -l command tells
    (A) Who the owner of the file is
    (B) The name of the group owner of the file
    (C) How large the file is and when the file was last modified
    (D) All of the above

7. The UNIX file system stores a data in physical blocks of
    (A) 1024 bytes
    (B) 2048 bytes
    (C) 512 bytes
    (D) 256 bytes

8. Which command is used to sort the lines of data in a file in reverse order
    (A) sort
    (B) sh
    (C) st
    (D) sort -r

9. Which of the following commands can be used to get information about all users who are currently logged into the system?
    (A) which
    (B) who
    (C) who am i
    (D) 1 /u

10. Which of are following internal commands is used in mail to forward mail to user in user-list?
    (A) r user-list
    (B) m user-list
    (C) d user-list
    (D) e user-list

11. Which command is used to extract specific columns from the file?
    (A) cat
    (B) cut
    (C) grep
    (D) paste

12. Which of the following is not a filter?
    (A) cat
    (B) grep
    (C) wc
    (D) None of the above

13. Which of the following command is used to count just the number of lines contained in a file?
    (A) wc -l
    (B) wc -c
    (C) wc -w
    (D) wc -r

14. Which of the following files will displayed by this command cat *ch*
    (A) patch
    (B) catch
    (C) .ch
    (D) All of the above

15. Which of the following is invalid filename?
    (A) shutry
    (B) TRY
    (C) trial
    (D) None of the above

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