Get 2023 Updated Free Linux Foundation LFCS Exam Questions & Answer [Q27-Q49]

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Get 2023 Updated Free Linux Foundation LFCS Exam Questions and Answer

LFCS Dumps PDF and Test Engine Exam Questions

What is the duration, language, and format of LFCS Exam

Format: Multiple choices, multiple answers

  • Language: English
  • Passing score: 66%
  • Length of Examination: 2 Hours
  • Number of Questions: 260

 

QUESTION 27
SUMULATION
Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)

QUESTION 28
What is the maximum niceness value that a regular user can assign to a process with the nice command when executinga new process?

 
 
 
 

QUESTION 29
CORRECT TEXT
The presence of what file will temporarily prevent all users except root from logging into the system? (Specify the full name of the file, including path.)

QUESTION 30
What output will the following command sequence produce?
echo ‘1 2 3 4 5 6’ | while read a b c; do
echo result: $c $b $a;
done

 
 
 
 
 

QUESTION 31
SIMULATION
Which file contains a set of services and hosts that will be allowed to connect to the server by going through a TCP Wrapper program such as tcpd? (Specify the full name of the file, including path.)

QUESTION 32
Which character starts a comment line in a shell script file?

 
 
 
 

QUESTION 33
When running the command
sed -e “s/a/b/” /tmp/file >/tmp/file
While /tmp/file contains data, why is /tmp/file empty afterwards?

 
 
 
 

QUESTION 34
Which command chain will count the number of regular files with the name of foo.txt within /home?

 
 
 
 
 

QUESTION 35
Which of the following commands prints a list of usernames (first column) and their primary group (fourth column) from the /etc/passwd file?

 
 
 
 

QUESTION 36
What is a purpose of an SSH host key?

 
 
 
 
 

QUESTION 37
In Bash, inserting 1>&2 after a command redirects

 
 
 
 
 

QUESTION 38
CORRECT TEXT
Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)

QUESTION 39
Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?

 
 
 
 
 

QUESTION 40
When the command echo $ outputs 1, which of the following statements is true?

 
 
 
 

QUESTION 41
Which of the following commands determines the type of a file by using a definition database file which contains information about all common file types?

 
 
 
 
 

QUESTION 42
Which of the following commands redirects the output of cmd to the file foo.txt, in which an existing file is overwritten?

 
 
 
 
 

QUESTION 43
Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)

 
 
 
 
 

QUESTION 44
What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)

 
 
 
 
 

QUESTION 45
What is the correct command to extract the contents of the archive file download.bz2?

 
 
 
 
 

QUESTION 46
Which of the following commands will NOT update the modify timestamp on the file /tmp/myfile.txt?

 
 
 
 
 

QUESTION 47
SIMULATION
Which command is used to set the hostname of the local system? (Specify ONLY the command without any path or parameters.)

QUESTION 48
CORRECT TEXT
What two character sequence is present at the beginning of an interpreted script? (Please specify the TWO correct characters only)

QUESTION 49
CORRECT TEXT
Which command displays a list of allbackground tasks running in the current shell? (Specify ONLY the command without any path or parameters.)


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