[2021] New LFCS exam dumps Use Updated Linux Foundation Exam
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NEW QUESTION 25
Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)
- A. dig
- B. trackroute
- C. route
- D. netstat
- E. ifconfig
Answer: C,D
NEW QUESTION 26
CORRECT TEXT
The system's timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full path to the directory, without any country information)
Answer:
Explanation:
/usr/share/zoneinfo/
NEW QUESTION 27
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 28
Whichof the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct answers.)
- A. runlevel 1
- B. shutdown -R 1 now
- C. init 1
- D. telinit 1
- E. shutdown -single now
Answer: C,D
NEW QUESTION 29
Which of the following commands will send output from the program myapp to both standard output (stdout) and the file file1.log?
- A. tee myapp file1.log
- B. cat < myapp | cat > file1.log
- C. myapp 0>&1 | cat > file1.log
- D. myapp | teefile1.log
- E. myapp | cat > file1.log
Answer: D
NEW QUESTION 30
What is the output of the following command?
echo "Hello World" | tr -d aieou
- A. Hello World
- B. Hll Wrld
- C. eoo
- D. eoo Hll Wrld
Answer: B
NEW QUESTION 31
Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?
- A. COUNT(SELECT order_type FROM orders);
- B. SELECT AUTO_COUNT FROM orders COUNT order_type;
- C. SELECT COUNT(*) FROM orders ORDER BY order_type;
- D. SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type;
- E. SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;
Answer: E
NEW QUESTION 32
SIMULATION
After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print. What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
lpq -or- /usr/bin/lpq -or- lpstat
NEW QUESTION 33
Creating a hard link to an ordinary file returns an error. What could be the reason for this?
- A. The source file is read-only.
- B. The source file is already a hard link.
- C. The source file is hidden.
- D. The source and the target are on different filesystems.
- E. The source file is a shell script.
Answer: D
NEW QUESTION 34
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 35
Which function key is used to start Safe Mode in Windows NT?
- A. F6
- B. Windows NT does not support Safe Mode
- C. F8
- D. F10
Answer: B
NEW QUESTION 36
How can the current directory and its subdirectories be searched for the file named MyFile.xml?
- A. find . -name MyFile.xml
- B. grep MyFile.xml | find
- C. less MyFile.xml
- D. grep -r MyFile.xml .
- E. search Myfile.xml ./
Answer: A
Explanation:
Explanation/Reference:
NEW QUESTION 37
What is the first program that is usually started, at boot time, by the Linux kernel when using SysV init?
- A. /sbin/init
- B. /boot/init
- C. /lib/init.so
- D. /etc/rc.d/rcinit
- E. /proc/sys/kernel/init
Answer: A
NEW QUESTION 38
What is the output of the following command sequence? for token in a b c; do
echo -n "$token ";
done
- A. abc
- B. token token token
- C. "a " "b " "c "
- D. a b c
- E. anbncn
Answer: D
NEW QUESTION 39
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 40
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. WHERE
- D. IF
Answer: C
NEW QUESTION 41
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 42
Which of the following commands can be used to locate programs and their corresponding man pages and configuration files?
- A. query
- B. basename
- C. which
- D. dirname
- E. whereis
Answer: E
NEW QUESTION 43
Which of the following commands will output all of the lines with the name Fred in upper or lower case but not the word red from the file data_file? (Choose two)
- A. egrep fred data_file
- B. grep '[Ff]red' data_file
- C. grep -v fred data_file
- D. grep -i fred data_file
- E. grep '[f]red' data_file
Answer: B,D
Explanation:
Explanation
NEW QUESTION 44
Which of the following commands will help identify a broken router between the local and the remote machine?
- A. nslookup
- B. traceroute
- C. ps
- D. netstat
- E. ifconfig
Answer: C
NEW QUESTION 45
What command will generate a list of user names from /etc/passwd along with their login shell?
- A. column -s : 1,7 /etc/passwd
- B. chop -c 1,7 /etc/passwd
- C. colrm 1,7 /etc/passwd
- D. cut -d: -f1,7 /etc/passwd
Answer: D
NEW QUESTION 46
Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?
- A. dd if=/dev/zero of=/dev/sda bs=440 count=1
- B. dd if=/dev/zero of=/dev/sda bs=440
- C. dd if=/dev/zero of=/dev/sda bs=512
- D. dd if=/dev/zero of=/dev/sdabs=512 count=1
Answer: A
NEW QUESTION 47
CORRECT TEXT
After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print. What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
lpq, /usr/bin/lpq, lpstat, /usr/bin/lpstat
NEW QUESTION 48
CORRECT TEXT
Which port is the default server port for the HTTPS protocol? (Specify the port number using digits.)
Answer:
Explanation:
443
NEW QUESTION 49
SIMULATION
Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
/usr/bin/xwininfo -or- xwininfo
NEW QUESTION 50
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