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NEW QUESTION 156
Which of the following find commands will print out a list of files owned by root and with the SUID bit set in / usr?
- A. find -type suid -username root -d /usr
- B. find /usr -ls \*s\* -u root
- C. find -user root +mode +s /usr
- D. find /usr -uid 0 -perm +4000
- E. find /usr -suid -perm +4000
Answer: D
NEW QUESTION 157
Which of the following are syslog facilities? (Choose TWO correct answers.)
- A. advanced
- B. postmaster
- C. local7
- D. remote
- E. mail
Answer: C,E
NEW QUESTION 158
How is a display manager started?
- A. It is started automatically when a X11 user logs in to the system console.
- B. It is started by inetd when a remote hosts connects to the X11 port.
- C. It is started by a user using the command startx.
- D. It is started like any other system service by the init system.
Answer: D
NEW QUESTION 159
What is true regarding TCP port 23?
- A. Port 23 is the well known port for the rlogin service which is SSL secured by default.
- 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 telnet service which is a plain text protocol that should no longer be used.
- 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: C
NEW QUESTION 160
What is true regarding a default route?
- A. Without a default route, no network communication even in directly attached networks is possible.
- B. The default route is always used first. When the default route is not available more specific routes are tried.
- C. When a default route is set, all other routes are disabled until the default route is deleted.
- D. The default route is only used if there is not a more specific route to a destination host or network.
Answer: D
NEW QUESTION 161
Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line?
- A. p (lowercase)
- B. P (uppercase)
- C. i (lowercase)
- D. U (uppercase)
- E. u (lowercase)
Answer: A
NEW QUESTION 162
SIMULATION
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 163
What information can the lspci command display about the system hardware? (Choose THREE correct answers.)
- A. PCI bus speed
- B. Device IRQ settings
- C. Device vendor identification
- D. Ethernet MAC address
- E. System battery type
Answer: A,B,C
NEW QUESTION 164
During a system boot cycle, what program is executed after the BIOS completes its tasks?
- A. The init program
- B. The inetd program
- C. The bootloader
- D. The kernel
Answer: C
NEW QUESTION 165
SIMULATION
Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)
Answer:
Explanation:
/etc/at.deny
NEW QUESTION 166
Given a file called birthdays containing lines like:
YYYY-MM-DD Name
1983-06-02 Tim
1995-12-17 Sue
Which command would you use to output the lines belonging to all people listed whose birthday is in May or June?
- A. grep '[0-9]*-0[56]-' birthdays
- B. grep 06 birthdays | grep 05
- C. grep 05?6? birthdays
- D. grep '[56]' birthdays
Answer: A
NEW QUESTION 167
In the vi editor, which of the following commands will copy the current line into the vi buffer?
- A. c
- B. 1c
- C. 1y
- D. cc
- E. yy
Answer: E
NEW QUESTION 168
SIMULATION
Which file lists which users can execute commands using sudo? (Specify the full name of the file, including path.)
Answer:
Explanation:
/etc/sudoers
NEW QUESTION 169
After running the command umount /mnt, the following error message is displayed:
umount: /mnt: device is busy.
What is a common reason for this message?
- A. Another file system still contains a symlink to a file inside /mnt.
- B. The kernel thinks that a process is about to open a file in /mnt for reading.
- C. The kernel has not finished flushing diskwrites to the mounted device.
- D. The files in /mnt have been scanned and added to the locate database.
- E. A user has a file open in the /mnt directory.
Answer: E
NEW QUESTION 170
Which command makes the shell variable named VARIABLE visible to subshells?
- A. export $VARIABLE
- B. export VARIABLE
- C. set $VARIABLE
- D. env VARIABLE
- E. set VARIABLE
Answer: B
NEW QUESTION 171
Which approach will provide a listing of the contents in a tar archive?
- A. Use the zless command.
- B. Use the grep command.
- C. Use the tar command with -t.
- D. Use the zlist command.
- E. Use the find command.
Answer: C
NEW QUESTION 172
To prevent a specific user from scheduling tasks with at, what should the administrator do?
- A. Run the following: atd --deny [user].
- B. Add the specific user to /etc/at.deny file.
- C. Add the specific user to [deny] section in the /etc/atd.conf file.
- D. Add the specific user to nojobs group.
- E. Add the specific user to /etc/at.allow file.
Answer: B
NEW QUESTION 173
Which of the following pieces of information of an existing file is changed when a hard link pointing to that file is created?
- A. Modify timestamp
- B. Link count
- C. Permissions
- D. Inode number
- E. File size
Answer: B
NEW QUESTION 174
Which of the following commands can be used to limit the amount of memory a user may use?
- A. passwd
- B. ulimit
- C. chage
- D. usermod
- E. umask
Answer: B
NEW QUESTION 175
What is the purpose of the Bash built-in export command?
- A. It shares NFS partitions for use by other systems on the network.
- B. It allows disks to be mounted remotely.
- C. It sets up environment variables for applications.
- D. It runs a command as a process in a subshell.
- E. It makes the command history available to subshells.
Answer: C
NEW QUESTION 176
What is true regarding the file ~/.forward?
- A. Using ~/.forward, root may configure any email address whereas all other users may configure only their own addresses.
- B. When configured correctly, ~/.forward can be used to forward each incoming mail to more than one other recipient.
- C. After editing ~/.forward the user must run newaliases to make the mail server aware of the changes.
- D. As it is owned by the MTA and not writable by the user, it must be edited using the editaliases command.
Answer: B
NEW QUESTION 177
What is the purpose of the file /etc/profile?
- A. It contains default application profiles for users that run an application for the first time.
- B. It contains the welcome message that is displayed after login.
- C. It contains security profiles defining which users are allowed to log in.
- D. It contains environment variables that are set when a user logs in.
Answer: D
NEW QUESTION 178
Which of the following commands will reduce all consecutive spaces down to a single space?
- A. tr -r ' ' '\n' < a.txt >b.txt
- B. tr '\s' ' ' < a.txt > b.txt
- C. tr -d ' ' < a.txt > b.txt
- D. tr -s ' ' < a.txt > b.txt
- E. tr -c ' ' < a.txt > b.txt
Answer: D
NEW QUESTION 179
Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in /etc/shadow?
- A. -
- B. *
- C. x
- D. s
Answer: C
NEW QUESTION 180
Which RPM command will output the name of the package which supplied the file /etc/exports?
- A. rpm -qf /etc/exports
- B. rpm -Kl /etc/exports
- C. rpm -qp /etc/exports
- D. rpm -F /etc/exports
- E. rpm -qi /etc/exports
Answer: A
NEW QUESTION 181
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