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Q61. - (Topic 6)
Which configuration file would be edited to change default options for the OpenSSH server?
A. /etc/ssh/sshd_config
B. /etc/ssh/ssh
C. /etc/ssh/server
D. /etc/ssh/ssh_config
E. /etc/ssh/ssh_server
Answer: A
Q62. - (Topic 1)
When the command echo $ outputs 1, which of the following statements is true?
A. It is the process ID of the echo command.
B. It is the process ID of the current shell.
C. It is the exit value of the command executed immediately before echo.
D. It is the exit value of the echo command.
Answer: C
Q63. - (Topic 1)
What is the difference between the commands test -e path and test -f path?
A. They are equivalent options with the same behaviour.
B. The -f option tests for a regular file. The -e option tests for an empty file.
C. Both options check the existence of the path. The -f option also confirms that it is a regular file.
D. The -f option tests for a regular file. The -e option tests for an executable file.
Answer: C
Q64. CORRECT TEXT - (Topic 4)
After adding a new email alias to the configuration, which command must be run in order to ensure the MTA knows about it? (Specify the command without any path but including all required parameters.)
Answer: newaliases, sendmail -bi
Q65. - (Topic 3)
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
Answer: D
Q66. CORRECT TEXT - (Topic 6)
The presence of what file will temporarily prevent all users except root from logging into the system? (Specify the full name of the file, including path.)
Answer: /etc/nologin
Q67. - (Topic 1)
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?
A. CASE
B. FROM
C. WHERE
D. IF
Answer: C
Q68. - (Topic 1)
Which of the following commands lists all defined variables and functions within Bash?
A. env
B. set
C. env -a
D. echo $ENV
Answer: B
Q69. - (Topic 5)
Which of the following keywords can be used in the file /etc/nsswitch.conf to specify a source for host name lookups? (Choose TWO correct answers.)
A. resolv
B. dns
C. remote
D. files
E. hosts
Answer: B,D
Q70. - (Topic 4)
What is the purpose of the command mailq?
A. It fetches new emails from a remote server using POP3 or IMAP.
B. It is a multi-user mailing list manager.
C. It is a proprietary tool contained only in the qmail MTA.
D. It queries the mail queue of the local MTA.
E. It is a command-line based tool for reading and writing emails.
Answer: D
