Get Latest [Oct-2021] Conduct effective penetration tests using Real4dumps LFCS
Penetration testers simulate LFCS exam PDF
NEW QUESTION 148
What is the purpose of the command mailq?
- A. It is a command-line based tool for reading and writing emails.
- B. It is a multi-user mailing list manager.
- C. It is a proprietary tool contained only in the qmail MTA.
- D. It queries the mail queue of the local MTA.
- E. It fetches new emails from a remote server using POP3 or IMAP.
Answer: D
NEW QUESTION 149
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 150
Which of the following is a valid IPv6 address?
- A. 2001::db8:4581::1
- B. 2001:db8:0g41::1
- C. 2001:db8:3241::1
- D. 2001.db8.819f..1
- E. 2001%db8%9990%%1
Answer: C
NEW QUESTION 151
Which of the following fields are available in both the global /etc/crontab file as well as in user-specific crontab files? (Select TWO correct answers)
- A. Minute
- B. Command
- C. Username
- D. Year
Answer: A,B
NEW QUESTION 152
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. nessus
- E. lsof
Answer: E
NEW QUESTION 153
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 154
Which file inside the CUPS configuration directory contains the definition of the printers?
- A. printers.conf
- B. printcap.conf
- C. cupsd.conf
- D. snmp.conf
- E. cups-devices.conf
Answer: A
NEW QUESTION 155
In order to display all currently mounted filesystems, which of the following commands could be used? (Choose TWO correct answers.)
- A. lsmounts
- B. mount
- C. free
- D. cat /proc/filesystems
- E. cat /proc/self/mounts
Answer: B,E
NEW QUESTION 156
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 has not finished flushing diskwrites to the mounted device.
- C. The kernel thinks that a process is about to open a file in /mnt for reading.
- D. A user has a file open in the /mnt directory.
- E. The files in /mnt have been scanned and added to the locate database.
Answer: D
NEW QUESTION 157
Which of the following commands can be used to determine how long the system has been running? (Choose TWO correct answers.)
- A. top
- B. time -up
- C. up
- D. uname -u
- E. uptime
Answer: A,E
NEW QUESTION 158
Which command will display the last line of the file foo.txt?
- A. last -n 1 foo.txt
- B. tail foo.txt
- C. head -n 1 foo.txt
- D. tail -n 1 foo.txt
Answer: D
NEW QUESTION 159
CORRECT TEXT
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 160
CORRECT TEXT
Which Debian package management tool asks the configuration questions for a specific already installed package just as if the package were being installed for the first time? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
dpkg -reconfigure
NEW QUESTION 161
Which of the following words is used to restrict the records that are returned from a SELECT SQL query based on a supplied criteria for the values in the records?
- A. CASE
- B. FROM
- C. IF
- D. WHERE
Answer: D
NEW QUESTION 162
From a Bash shell, which of the following commands directly executes the instruction from the file /usr/local/bin/runme.sh without starting a subshell? (Please select TWO answers.)
- A. /usr/local/bin/runme.sh
- B. . /usr/local/bin/runme.sh
- C. source /usr/local/bin/runme.sh
- D. /bin/bash /usr/local/bin/runme.sh
- E. run /usr/local/bin/runme.sh
Answer: B,C
NEW QUESTION 163
Which of the following information is stored within the BIOS? (Choose TWO correct answers.)
- A. Linux kernel version
- B. Hardware configuration
- C. Timezone
- D. The system's hostname
- E. Boot device order
Answer: B,E
NEW QUESTION 164
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