102-500 Exam Dumps (V11.02) – Prepare for Your LPIC-1: System Administrator Certification Exam with the Latest Study Materials

1. Topic 1, Shells, Scripting and Data Management

What output will the following command sequence produce?

echo '1 2 3 4 5 6' | while read a b c; do

echo result: $c $b $a;

done

2. When the command echo $ outputs 1, which of the following statements is true?

3. Which command makes the shell variable named VARIABLE visible to subshells?

4. What output will the command seq 10 produce?

5. By default, the contents of which directory will be copied to a new user's home directory when the account is created by passing the -m option to the useradd command? (Specify the full path to the directory.)

6. After issuing:

function myfunction { echo $1 $2 ; }

in Bash, which output does:

myfunction A B C

Produce?

7. Which of the following commands puts the output of the command date into the shell variable mydate?

8. Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)

9. What is the difference between the commands test -e path and test -f path?

10. How can the existing environment variable FOOBAR be suppressed for the execution of the script./myscript only?

A. unset -v FOOBAR;./myscript

B. set -a FOOBAR="";./myscript

C. env -u FOOBAR./myscript

D. env -i FOOBAR./myscript

11. When the command echo $$ outputs 12942, what is the meaning of 12942?

12. What output will the following command produce?

seq 1 5 20

13. Which of the following words is used to restrict the records that are returned from a SELECT SQL query based on a supplied criteria for the values in the records?

14. Which of the following commands lists all defined variables and functions within Bash?

15. Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?

16. What is the purpose of the file /etc/profile?

17. What command displays all aliases defined in the current shell? (Specify the command without any path information)

18. Which of the following are requirements in order to run a shell script like a regular command from anywhere in the filesystem? (Choose THREE correct answers.)

19. Which of the following SQL statements will select the fields name and address from the contacts

table?

20. Which directory in /etc is used to keep a sample copy of files and directories for when a new user has a home directory created? (Please provide the full path)

21. Which of the following configuration files should be modified to set default shell variables for all users?

22. Which of the following is the best way to list all defined shell variables?

23. Which command allows you to make a shell variable visible to subshells?

24. Which of the following words is used to restrict the records that are returned from a SELECT query based on a supplied criteria for the values in the records?

25. What benefit does an alias in bash provide?

26. You are looking into a new script you received from your senior administrator. In the very first line you notice a #! followed by a file path. This indicates that:

27. What keyword is missing from this code sample of a shell script?

____ i in *.txt; do

echo $i

done

28. What word is missing from the following SQL statement?

__________ count(*) from tablename;

(Please specify the missing word using lower-case letters only.)

29. Which file used by XDM specifies the default wallpaper?

30. Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.)

31. The X11 configuration file xorg.conf is grouped into sections.

How is the content of the section SectionName associated with that section?

32. What is the purpose of a screen reader?

33. How is a display manager started?

A. It is started by a user using the command startx.

B. It is started like any other system service by the init system.

C. It is started by inetd when a remote hosts connects to the X11 port.

D. It is started automatically when a X11 user logs in to the system console.

34. What is the default name of the configuration file for the Xorg X11 server? (Specify the file name only without any path.)

35. Which of the following commands shows the current color depth of the X Server?

36. For accessibility assistance, which of the following programs is an on-screen keyboard?

A. xkb

B. atkb

C. GOK

D. xOSK

37. What is the name of the simple graphical login manager that comes with a vanilla X11 installation? (Specify ONLY the command without any path or parameters.)

38. Which of the following are tasks handled by a display manager like XDM or KDM? (Choose TWO correct answers.)

39. X is running okay but you're concerned that you may not have the right color depth set.

What single command will show you the running color depth while in X?

40. Your senior administrator asked you to change the default background of his machine, which uses XDM.

Which file would you edit to achieve this?

41. What is the purpose of the Sticky Keys feature in X?

42. Why is the xhost program considered dangerous to use?

43. An administrator wants to determine the geometry of a particular window in X, so she issues the

__________ -metric command and then clicks on the window.

44. On a system running the KDE Display Manager, when is the /etc/kde4/kdm/Xreset script automatically executed?

45. Which of the following lines is an example of a correct setting for the DISPLAY environment variable?

46. Which of the following steps prevents a user from obtaining an interactive login session?

47. Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)

48. Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in /etc/shadow?

49. The system's timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full path to the directory, without any country information)

50. Which of the following fields are available in both the global /etc/crontab file as well as in user-specific crontab files? (Select TWO correct answers)

51. Which command can be used to delete a group from a Linux system?

52. What is the purpose of the iconv command?

53. In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?

54. Which of the following commands can remove a user from a group?

55. Where are user specific crontabs stored?

56. Which file contains the date of the last change of a user's password?

57. Which environment variable should be set in order to change the time zone for the commands run from within the environment variable's scope? (Specify the variable name only.)

58. Each entry in a crontab must end with what character?

59. To prevent a specific user from scheduling tasks with at, what should the administrator do?

60. Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?

A. 0 * * * 30 myscript

B. 30 * * * 6 myscript

C. 30 0 * * 0 myscript

D. 30 0-23 * * 0 myscript

E. 0 0-23 * * 30 myscript

61. Which of the following files assigns a user to its primary group?

62. Which of the following commands should be added to /etc/bash_profile in order to change the language of messages for an internationalized program to Portuguese (pt)?

63. In which file, if present, must all users be listed that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)

64. Which commands can be used to change a user's account aging information? (Choose THREE correct answers.)

65. Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.)

66. What is NOT contained in the locale setting of the operating system?

67. What is true about the file /etc/localtime?

68. What is true regarding the command userdel --force --remove bob? (Choose TWO correct answers.)

69. Which of the following fields can be found in the /etc/group file? (Choose THREE correct answers.)

70. On a system using shadowed passwords, the most correct permissions for /etc/passwd are ___ and the most correct permissions for /etc/shadow are _________.

71. A French user has installed the French language pack, but currencies are still being displayed with a leading '$' sign in his spreadsheets.

What must be done to fix this?

72. Which of the following can the chage command NOT change?

73. What command will display the group names and GIDs to which a user belongs? (Provide only the command name with or without path information)

74. Of the ways listed, which is the best method to temporarily suspend a user's ability to interactively login?

75. What is the conventional purpose of Linux UIDs that are lower than 100?

76. How is the file format of /etc/crontab different from a normal crontab file? (Select TWO correct answers)

77. What is the main difference between the batch and at commands?

78. The correct crontab entry to execute the script chklog three times per month between 3 p.m. and 5 p.m.:

A. * 3,4,5 1 * * chklog

B. 3 3,4,5 1 * * chklog

C. 3 15,16,17 * * * chklog

D. 0 15,16,17 1 * * chklog

E. * 15,16,17 1 * * chklog

79. Fill in Blanks

The ________ command is used to add a group to the system.

80. Which command will set the local machine's timezone to UTC?

81. Which command should be added to /etc/bash_profile to change the language of messages from an internationalised program to Portuguese (pt)? (Select TWO correct answers)

82. A user was not given permission to use the CRON scheduling system.

What file needs to be modified to provide that access? (Please specify the full path to the file)

83. Which commands can you use to change a user's account aging information? (Choose THREE correct answers.)

84. Why is /etc/shadow not world readable if the passwords are stored in an encrypted fashion?

85. Of the ways listed, which is the best way to temporarily suspend a single user's ability to interactively login?

86. Which TWO statements about crontab are true?

A. Every user may have their own crontab.

B. Changing a crontab requires a reload/restart of the cron daemon.

C. The cron daemon reloads crontab files automatically when necessary.

D. hourly is the same as "0 * * * *".

E. A cron daemon must run for each existing crontab.

87. Which crontab entry could be used to set the system time at regular intervals?

88. Which of the following commands can be used to convert text files in one character encoding to another character encoding?

89. Which option in the /etc/ntp.conf file specifies an external NTP source to be queried for time information? (Specify ONLY the option without any values or parameters.)

90. After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print.

What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)