LX0-104 Exam
LX0-104 practice exam（61 to 70） for IT candidates: Mar 2021 Edition
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2021 Mar LX0-104 study guide
Q61. - (Topic 2)
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.
Answer: B
Q62. - (Topic 2)
Which file used by XDM specifies the default wallpaper?
A. /etc/X11/xdm/Xsetup
B. /etc/X11/xdm.conf
C. /etc/X11/xdm/Defaults
D. /etc/X11/defaults.conf
Answer: A
Q63. - (Topic 5)
What is true regarding a default route?
A. The default route is always used first. When the default route is not available more specific routes are tried.
B. When a default route is set, all other routes are disabled until the default route is deleted.
C. The default route is only used if there is not a more specific route to a destination host or network.
D. Without a default route, no network communication even in directly attached networks is possible.
Answer: C
Q64. - (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
Q65. - (Topic 1)
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
Answer: C
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Q66. - (Topic 1)
Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)
A. ~/.bashconf
B. ~/.bashrc
C. ~/.bashdefaults
D. ~/.bash_etc
E. ~/.bash_profile
Answer: B,E
Q67. - (Topic 1)
What output will the command seq 10 produce?
A. A continuous stream of numbers increasing in increments of 10 until stopped.
B. The numbers 1 through 10 with one number per line.
C. The numbers 0 through 9 with one number per line.
D. The number 10 to standard output.
Answer: B
Q68. - (Topic 5)
What is true regarding TCP port 23?
A. Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used.
B. Port 23 is the well known port for the SSH service which provides secure logins.
C. Port 23 is the well known port for the rlogin service which is SSL secured by default.
D. Port 23 is the well known port for the system login services which are encrypted when the user runs the starttls command in his login shell.
Answer: A
Q69. CORRECT TEXT - (Topic 5)
Which keyword must be listed in the hosts option of the Name Service Switch configuration file in order to make host lookups consult the /etc/hosts file?
Answer: files
Q70. CORRECT TEXT - (Topic 4)
Which command is used to sync the hardware clock to the system clock? (Specify ONLY the command without any path or parameters.)
Answer: hwclock, /sbin/hwclock, /usr/sbin/hwclock