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NEW QUESTION # 135
What is true about the file /etc/localtime?
- A. It is a plain text file containing a string such as Europe/Berlin
- B. It is created and maintained by the NTP service based on the location of the system's IP address.
- C. It is a symlink to /sys/device/clock/ltime and always contains the current local time.
- D. It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/ Europe/Berlin.
- E. After changing this file, newtzconfig has to be run to make the changes effective.
Answer: D
NEW QUESTION # 136
What does the term Braille Display refer to?
- A. A standardized high contract graphical theme for desktop applications?
- B. A physical representation of characters using small dots.
- C. A Linux desktop environment similar to KDE and GNOME.
- D. A legacy display technology superseded by LCD.
- E. A standard file format for data exchange, similar to XML.
Answer: B
NEW QUESTION # 137
Which of the following commands display the number of bytes transmitted and received via the eth0 network interface? (Choose two.)
- A. ifconfig eth0
- B. route -v via eth0
- C. netstat -s -i eth0
- D. ip -s link show eth0
- E. ip stats show dev eth0
Answer: A,C
NEW QUESTION # 138
What is true about the file /etc/localtime?
- A. It is a plain text file containing a string such as Europe/Berlin.
- B. It is a symlink to /sys/device/clock/ltime and always contains the current local time.
- C. It is created and maintained by the NTP service based on the geolocation of the system's IP address.
- D. It is either a symlink to or a copy of a timezone information file such as
/usr/share/zoneinfo/Europe/Berlin.
Answer: D
NEW QUESTION # 139
How do shadow passwords improve the password security in comparison to standard no-shadow password?
- A. The system's host key is used to encrypt all shadow passwords.
- B. Shadow passwords are stored in plain text and can be checked for weak passwords.
- C. Regular users do not have access to the password hashes of shadow passwords.
- D. Shadow passwords are always combined with a public key that has to match the user's private key.
- E. Every shadow password is valid for 45 days and must be changed afterwards.
Answer: C
NEW QUESTION # 140
Which of the following commands can deconfigure a network interface?
- A. netdown
- B. net
- C. ipdown
- D. ifconfig
Answer: D
NEW QUESTION # 141
What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)
Answer:
Explanation:
1024
NEW QUESTION # 142
Which if the following tools, used for DNS debugging, reports not only the response from the name sever but also details about the query?
- A. hostname
- B. dnslookup
- C. dnsq
- D. dig
- E. zoneinfo
Answer: D
NEW QUESTION # 143
Which of the following steps prevents a user from obtaining an interactive login session?
- A. Adding the user to /etc/noaccess.
- B. Removing the user from the group staff.
- C. Running the command chsh -s /bin/false with the user name.
- D. Creating a .nologin file in the user's home directory.
- E. Setting the UID for the user to 0.
Answer: C
NEW QUESTION # 144
What command will display the group names and GIDs to which a user belongs? (Provide only the command name with or without path information)
Answer:
Explanation:
/usr/bin/id
NEW QUESTION # 145
Which of the following protocols is designed to access the video card output of a virtual machine?
- A. X11
- B. Xfce
- C. KDE
- D. SPICE
- E. XDMCP
Answer: D
NEW QUESTION # 146
Which of the following statements is valid in the file /etc/nsswitch.conf?
- A. hosts: files dns
- B. 192.168.168.4 dns-server
- C. namespaces: net mount procs
- D. multi on
- E. include /etc/nsswitch.d/
Answer: A
NEW QUESTION # 147
What is a purpose of an SSH host key?
- A. It is root key by which all user SSH keys must be signed.
- B. It authenticates any user that logs into a remote machine from the key's host.
- C. It provides the server's identity information to connecting SSH clients.
- D. It is used by system services like cron, syslog or a backup job to automatically connect to remote hosts.
- E. It must be sent by any SSH client in addition to a user key in order to identify the client's host.
Answer: C
NEW QUESTION # 148
Which of the following getentinvocations lists all existing users?
- A. getent users
- B. getent passwd
- C. getent logins
- D. getent uids
- E. getent homes
Answer: B
Explanation:
Explanation/Reference:
NEW QUESTION # 149
Which of the following protocols is designed to access the video card output of a virtual machine?
- A. X11
- B. Xfce
- C. KDE
- D. SPICE
- E. XDMCP
Answer: D
Explanation:
Explanation/Reference:
NEW QUESTION # 150
What output is produced by the following command sequence?
echo '1 2 3 4 5 6' | while read a b c; do
echo result $c $b $a;
done
- A. result: 1 2 3 4 5 6
- B. result: 6 5 4
- C. result: 3 4 5 6 2 1
- D. result: 6 5 4 3 2
- E. result: 3 2 1
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION # 151
Which configuration file does sudo read when determining if a user is permitted to run applications with root privileges?
- A. /etc/sudoers
- B. /etc/audit.conf
- C. /etc/sudo.conf
- D. /etc/shadow
Answer: A
NEW QUESTION # 152
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 # 153
On a Linux workstation, the route command takes a long time before printing out the routing table. Which of the following errors does that indicate?
- A. There may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default.
- B. One of the routers in the routing table is not available which causes the automatic router failure detection mechanism (ARF-D) to wait for a timeout.
- C. The Linux Kernel Routing Daemon (LKRD) is not running and should be started using its init script or systemd unit.
- D. The local routing information may be corrupted and must be re-validated using a routing protocol.
- E. DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.
Answer: E
NEW QUESTION # 154
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.)
Answer:
Explanation:
/etc/skel
NEW QUESTION # 155
Which of the following commands displays all environment and shell variables?
- A. lsshell
- B. env
- C. getargs
- D. lsenv
- E. ls
Answer: B
NEW QUESTION # 156
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