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NEW QUESTION 37
What is the difference between the i and a commands of the vi editor?
- A. i (insert) inserts text before the current cursor position whereas a (append) inserts text after the cursor.
- B. i (interrupt) temporarily suspends editing of a file to the background whereas a (abort) terminates editing.
- C. i (independent rows) starts every new line at the first character whereas a (aligned rows) keeps the indentation of the previous line.
- D. i (interactive) requires the user to explicitly switch between vi modes whereas a (automatic) switches modes automatically.
Answer: A
NEW QUESTION 38
What do the permissions -rwSr-xr-x mean for a binary file when it is executed as a command?
- A. The execute flag is not set for the owner. Therefore the SetUID flag is ignored.
- B. The command will be executed with the effective rights of the owner and group.
- C. The command is SetUID and it will be executed with the effective rights of the owner.
- D. The command will be executed with the effective rights of the group instead of the owner.
Answer: A
NEW QUESTION 39
Which of the following keywords can be used in the file /etc/resolv.conf? (Choose TWO correct answers.)
- A. method
- B. search
- C. nameserver
- D. lookup
- E. substitute
Answer: B,C
NEW QUESTION 40
Which of the following commands will help identify a broken router between the local and the remote machine?
- A. ifconfig
- B. nslookup
- C. traceroute
- D. ps
- E. netstat
Answer: D
Explanation:
Explanation/Reference:
NEW QUESTION 41
Which of the following are requirements in order to run a shell script like a regular command from anywhere in the filesystem? (Choose THREE correct answers.)
- A. The script file must have the executable permission bit set.
- B. The file system on which the script resides must be mounted with the option scripts.
- C. The script file must be found in the $PATH.
- D. The script must begin with a shebang-line (#!) that points to the correct interpreter.
- E. The user issuing the command must be in the group script.
Answer: A,C,D
NEW QUESTION 42
CORRECT TEXT
Which command is used to create and initialize the files used to store quota information? (Specify ONLY the commandwithout any path or parameters.)
Answer:
Explanation:
quotacheck
NEW QUESTION 43
What output will the following command produce?
seq 1 5 20
- A. 1 5 10 15
- B. 1 6 1 1 1 6
- C. 2 3 4 5
- D. 1 2 3 4
- E. 5 10 15 20
Answer: B
NEW QUESTION 44
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 system login services which are encrypted when the user runs the starttls command in his login shell.
- 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 SSH service which provides secure logins.
Answer: C
NEW QUESTION 45
What is the effect of the egrep command when the -v option is used?
- A. It shows the command's version information.
- B. It only outputs non-matching lines.
- C. It enables color to highlight matching parts.
- D. It changes theoutput order showing the last matching line first.
Answer: B
NEW QUESTION 46
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 47
How many fields are in a syntactically correct line of /etc/fstab?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: D
NEW QUESTION 48
CORRECT TEXT
Which world-writable directory should be placed on a separate partition inorder to prevent users from being able to fill up the / filesystem? (Specify the full path to the directory.)
Answer:
Explanation:
/tmp, tmp, /var/tmp, /tmp/, /var/tmp/
NEW QUESTION 49
The X11 configuration file xorg.conf is grouped into sections. How is the content of the section SectionName associated with that section?
- A. It is placed in curly brackets as in Section SectionName { ... }.
- B. It is placed between a line containing Section "SectionName" and a line containing EndSection.
- C. It is placed after an initial unindented Section "SectionName" and must be indented by exactly one tab character.
- D. It is placed between the tags <Section name="SectionName"> and </Section>
- E. It is placed after the row [SectionName].
Answer: B
NEW QUESTION 50
SIMULATION
Which umask value will result in the default access permissions of 600 (rw-------) for files and 700 (rwx------) for directories? (Specify only the numerical umask value.)
Answer:
Explanation:
0077, 077
NEW QUESTION 51
Which of the following commands changes the ownership of file.txt to the user dan and the group staff?
- A. chown dan/staff file.txt
- B. chown dan -g staff file.txt
- C. chown -u dan -g staff file.txt
- D. chown dan:staff file.txt
Answer: D
NEW QUESTION 52
Which of the following parameters are used for journalctl to limit the time frame of the output? (Choose TWO correct answers.)
- A. --date
- B. --until
- C. --from
- D. --upto
- E. --since
Answer: B,E
NEW QUESTION 53
Which of the following commands can be used to download the RPM package kernel without installing it?
- A. yumdownloader kernel
- B. rpmdownload kernel
- C. rpm --download --package kernel
- D. yum download --no-install kernel
Answer: A
NEW QUESTION 54
The script, script.sh, consists of the following lines:
#!/bin/bash
echo $2 $1
Which output will appear if the command, ./script.sh test1 test2, is entered?
- A. script.sh test2
- B. test1 script.sh
- C. script.sh test1
- D. test1 test2
- E. test2 test1
Answer: E
NEW QUESTION 55
Which of the following commands changes the number of days before the ext3 filesystem on /dev/sda1 has to run through a full filesystem check while booting?
- A. tune2fs -i 200 /dev/sda1
- B. tune2fs --days 200 /dev/sda1
- C. tune2fs -n 200/dev/sda1
- D. tune2fs -d 200 /dev/sda1
- E. tune2fs -c 200 /dev/sda1
Answer: A
NEW QUESTION 56
When trying to unmount a device it is reported as being busy. Which of the following commands could be used to determine which process is causing this?
- A. debug
- B. traceroute
- C. strace
- D. lsof
- E. nessus
Answer: D
NEW QUESTION 57
SIMULATION
Which parameter must be passed to ifconfig to activate a previously inactive network interface? (Specify the parameter only without any command, path or additional options)
Answer:
Explanation:
up
NEW QUESTION 58
Which of the following files, located in the user home directory, is used to store the Bash history?
- A. .bashrc_history
- B. .history_bash
- C. .bash_histfile
- D. .history
- E. .bash_history
Answer: E
NEW QUESTION 59
Which of the following details is NOT provided in any output from the netstat utility?
- A. masquerading connections
- B. routing tables
- C. network connections
- D. interface statistics
- E. broadcast services
Answer: E
NEW QUESTION 60
Which command can be used to delete a group from a Linux system?
- A. groups
- B. groupmod
- C. groupedit
- D. groupdel
Answer: D
NEW QUESTION 61
SUMULATION
Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)
Answer:
Explanation:
cmdline -or- /proc/cmdline
NEW QUESTION 62
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