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NEW QUESTION 65
Which character, added to the end of a command, runs that command in the background as a child process of the current shell?
- A. !
- B. #
- C. &
- D. +
- E. %
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION 66
CORRECT TEXT
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.)
Answer:
Explanation:
server
NEW QUESTION 67
Which of the following commands connects to the remote host example.com which has OpenSSH listening on TCP port 2222? (Choose TWO correct answers.)
- A. ssh -o GatewayPort=2222 example.com
- B. ssh --port 2222 example.com
- C. ssh -p 2222 example.com
- D. ssh example.com:2222
- E. ssh -o Port=2222 example.com
Answer: C,E
NEW QUESTION 68
Which file used by XDM specifies the default wallpaper?
- A. /etc/X11/defaults.conf
- B. /etc/X11/xdm/Xsetup
- C. /etc/X11/xdm.conf
- D. /etc/X11/xdm/Defaults
Answer: B
NEW QUESTION 69
How can the existing environment variable FOOBAR be suppressedfor the execution of the script./myscript only?
- A. env -u FOOBAR./myscript
- B. set -a FOOBAR="";./myscript
- C. unset -v FOOBAR;./myscript
- D. env -i FOOBAR./myscript
Answer: A
NEW QUESTION 70
What command will generate a list of user names from /etc/passwd along with their login shell?
- A. chop -c 1,7 /etc/passwd
- B. column -s : 1,7 /etc/passwd
- C. cut -d: -f1,7 /etc/passwd
- D. colrm 1,7 /etc/passwd
Answer: C
NEW QUESTION 71
SIMULATION
What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other options or words.)
Answer:
Explanation:
l
NEW QUESTION 72
Which approach will provide a listing of the contents in a tar archive?
- A. Use the tar command with -t.
- B. Use the find command.
- C. Use the zless command.
- D. Use the zlist command.
- E. Use the grep command.
Answer: A
NEW QUESTION 73
CORRECT TEXT
Which directory holds the files that configure the xinetd service when using several configuration files instead of an integrated configuration file? (Specify the full path to the directory.)
Answer:
Explanation:
/etc/xinetd.d/, /etc/xinetd.d
NEW QUESTION 74
SIMULATION
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)
Answer:
Explanation:
/usr/share/zoneinfo/
NEW QUESTION 75
What is true regarding the command sendmail?
- A. With any MTA, the sendmail command must be run periodically by the cron daemon.
- B. The sendmail command prints the MTAs queue history of which mails have been sent successfully.
- C. It is only available when the sendmail MTA is installed.
- D. All MTAs, including Postfix and Exim, provide a sendmail command.
Answer: D
NEW QUESTION 76
Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)
- A. route
- B. dig
- C. netstat
- D. trackroute
- E. ifconfig
Answer: A,C
NEW QUESTION 77
CORRECT TEXT
What word is missing from the following SQL statement?
insert into tablename ________(909, 'text');
(Please specify the missing word using lower-case letters only.)
Answer:
Explanation:
VALUES,
values
NEW QUESTION 78
Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination?
- A. /proc/inittab
- B. /etc/inittab
- C. /proc/keys
- D. /etc/reboot
- E. /etc/keys
Answer: B
NEW QUESTION 79
Which of the following environment variables overrides or extends the list of directories holding shared libraries?
- A. LD_RUN_PATH
- B. LD_SHARE_PATH
- C. LD_LIBRARY_PATH
- D. LD_LOAD_PATH
- E. LD_LIB_PATH
Answer: C
NEW QUESTION 80
What is true about the file /etc/localtime?
- A. It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin.
- B. It is a plain text file containing a string such as Europe/Berlin.
- C. It is created and maintained by the NTP service based on the geolocation of the system's IP address.
- D. It is a symlink to /sys/device/clock/ltime and always contains the current local time.
Answer: A
NEW QUESTION 81
Which of the following commands lists all defined variables and functions within Bash?
- A. env
- B. echo $ENV
- C. env -a
- D. set
Answer: D
NEW QUESTION 82
CORRECT TEXT
What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)
Answer:
Explanation:
1024
NEW QUESTION 83
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