Introduction to Linux I – Midterm Exam Answers 100% PDF file (Modules 1

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1. Which command is used in order to view the manual page for a topic?

help
doc
show
man *

2. The basic form of a command line is:

command [options…] [arguments…] *
command [arguments…] options
command arguments options
command [options…] arguments…

3. A command can be: (choose three)

A block
A function *
A program built-in to the shell *
An alias *
A configuration file
A variable

4. Which of the following man page sections will provide an example of how a command is executed?

The DESCRIPTION section
The NAME section
The FILES section
The SYNOPSIS section *

5. The command man 5 passwd will:

Display the first five lines of the man page for the passwd command.
Not work; you can’t give a numeric argument to the man command.
Print the first five man pages that refer to the term passwd.
Display the man page of Section 5 for passwd. *

6. Which character(s) cannot be placed in variable names?

Hyphen (“-“) character *
Numeric characters
Underscore (“_”) character
Upper-case alpha characters
Lower-case alpha characters

7. Shell variables are used to:

Reboot the system
Prevent users from logging in
Hide passwords
Hold critical system information *

8. Local variables are:

Only available to the shell they are created in *
Passed into other shells and commands
Are not a valid type of variable
Not used by shells at all

9. Environment variables cannot be declared by which command?

export
declare
set *
typeset

10. The /usr/local/bin directory contains:

Essential administrative commands
Nothing; it is not a valid directory
The most fundamental commands that are essential for the operating system to function
Commands that have been compiled from local sources *

11. The key press combination that will request a running process terminate:

CTRL+c *
CTRL+d
CTRL+z
CTRL+p

12. A popular program for monitoring running processes in real-time is:

watcher
mon
ghost
top *

13. To send a signal to a set of processes with the same name, you can run:

killall *
sigkill
allkill
grpkill

14. Which of the following commands will stop all processes owned by the user bob? (choose two)

kill -u bob
pkill -u bob *
kill -l
killall -u bob *

15. The range defined inside of square brackets is based on the:

ASCII text table *
Invalid question as ranges are not permitted
ANSI text table
Standard text table

16. You can combine glob characters in a single pattern, for example: a??*[0-9].True or False?

True *
False

17. The ls command can list the contents of only one directory at a time.True or False?

True
False *

18. To perform a “long listing” to show file details, use which of the following commands:

ls -L
ls -D
ll
ls -l *

19. The mv command can be used to move more than one file at a time.True or False?

True *
False

20. Which option(s) for the rm command can be used to delete directories that contain files? (choose two)

-r *
-R *
-D
-A

21. Which character at the beginning of a long listing indicates a regular file?

22. To decompress the archive example.gz, use the following command:

gunzip -x example.gz
gunzip example.gz *
gzip -x example.gz
gzip -u example.gz

23. By default, tar will attempt to extract an archive…

to the specified directory.
into the working directory. *
into the user’s home directory.
into the archive’s parent directory.

24. Which of the following options puts the cpio command into copy-in mode?

-o
-u
-v
-i *

25. The dd command can be used to create large files the can be used as swap files.True or False?

True *
False

26. Which of the following is not a valid argument for the dd command?

if
count
in *
bs
of

27. Which of the following are advantages of using the locate command?

It can search by file attribute types
It pages the results
Its results are always the most up to date
It is quicker than the find command *

28. Many commands that read text files will also read from this stream:

redirect
stdin *
pipe
input

29. If you want to overwrite a file by redirecting the output of a command, you can use:

&
}
>
|

30. To redirect the errors that are output by a command, you can use:

2@
2&
2> *
@

31. Which two symbols can effectively redirect stdin to a command? (choose two)

32. To send the normal and error output of a command to a single file, you can use:

2>
>
1>
&> *

33. The head -n -1 readme.txt command will:

Display all but the last line of readme.txt *
Number the lines of readme.txt
Show the first character of every line of readme.txt
Display the first line of readme.txt

34. Why would you press CTRL+C when executing tail?

To capture the output into a file
To stop tail from following a file *
To complete the processing of a file
To get tail to copy the text it is outputting

35. Which command merges two files like related tables in a database?

sql
join *
query
paste

36. Which command will remove consecutive duplicate lines from a file?

unique
uniq *
dup
dedup

37. The _____ command provides many options for formatting a file for printing.

pr *
format
header
print

38. Which regular expression character matches zero or more of the previous character?

39. Which of the following regular expression characters is an extended regular expression character?

40. The regular expression a* is equivalent to:

a{0,1}
a{1,}
a{1}
a{0,} *

41. To use regular expression characters to match themselves, you cannot:

Use the fgrep command
Put the character in the square brackets
Use the slash in front of the character *
Use the backslash in front of the character

42. What is NOT a purpose of using parentheses around parts of a regular expression?

They can be used to change the order that the pattern is evaluating *
They can be used to refer back to what was matched
They can be used to make alternation more efficient
They can be used to group characters for repetition

43. To navigate to the end of the line in vi command mode, you can press:

44. To search forward from your cursor in your vi document in command mode, you can type __ followed by the pattern to search for.

45. If you are in vi command mode and want to begin inserting text at the end of the line, you can type:

46. If you want to move a character to the right in vi command mode, you can press the right arrow key or:

47. If you want to move up a line in vi command mode, you can press the up arrow key or:

48. Which permission is necessary on a directory in order for a user to use the cd command to change that directory?

Execute *
None
Write
Read

49. The setuid permission on a file:

Causes the file to run under the user’s identity
Causes the file to run under the owner’s identity *
Causes the file to never run as root
Causes the file to always run as root

50. The command, chmod 1777 /data will:

Make the /data directory a setgid directory
Make the /data directory a sticky bit directory *
Make the /data directory a setuid directory
Remove all special permissions

51. The command, chmod 2777 /data will:

Remove all special permissions
Make the /data directory a setuid directory
Make the /data directory a sticky bit directory
Make the /data directory a setgid directory *

52. Which are valid link types in Linux? (choose two)

Soft links *
Stable links
Hard links *
Filesystem links

53. Which is true about hard links?

They can only be created by the root user
They share inodes *
They are created with the ln -s command
They can be made to directories

54. Which value represents the inode number in the following output of the ls -li command: 87589 -rw-r–r–. 2 root root 83 Mar 4 22:45 myhosts

87589 *
22:45
2
83

55. The FHS sets which standard?

Which services should be installed
Which partitions should be created
Which directories should be used to hold specific files *
Which filesystem types should be used

56. The location of users’ default shells is stored in the ______ file.

/etc/group
/etc/gshadow
/etc/passwd *
/etc/shadow

57. Long command options are preceded by which two characters?

58. Which two characters do you use to tell the command that you are finished providing options and that the remaining data on the command line is arguments?

59. To see a list of commands that are available while viewing a man page, you can type the __ character.

60. System Administration man pages are typically located in section ___.

61. What option to the kill command will list the signals for the system?

-r
-9
-l *
-list

62. Which glob character matches “exactly one character”?

*
.
[
?

63. Which glob character matches “zero or more characters”?

.
?
[
*

64. Which two characters match “a single character from a set of specified characters”?

[]
??
..
**

65. Which option to the find command will search by user owner?

-person
-user *
-owner
-uowner

66. Which type of link can be made to directories, hard or soft?

soft *
hard

67. Which type of link is easier to visually “see”, hard or soft?

hard
soft *

68. Which type of link is indistinguishable by programs from regular files, hard or soft?

hard *
soft

69. Which directory is used to store temporary files?

/etc
/tmp *
/temp
/

70. Which directory is used for the home directory of the root user?

/home/root
/
/var
/root *

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