LFCS Exam Questions

Which of the following is NOT and valid scan technique with nmap?

What can proxymap be used for in a Postfix installation? (Select TWO correct answers)

Which of the following parameters should be set in main.cf to enable TLS in Postfix?

The system administrator wishes to use John the Ripper to confirm that the passwords in a file called passwords are not weak. john has finished but the terminal window running the...

On a new Linux system, the root user is being asked to provide the root user password before being able to use the su command. What line in the /etc/pam.d/su file will allow root t...

The system administrator wishes to use the pam_listfile.so module to restrict which users are allowed to login via SSH. Which line will configure this behaviour?

Which of the following is NOT included in a Snort rule header?

What is the purpose of snort inline?

What is the purpose of tripwire?

Which of the following commands will create a new, signed tw.pol file?

What openssl command will generate a private RSA key of 2048 bits and no passphrase?

What openssl command will generate a certificate signing request (CSR) using the private key file privkey.pem?

What openssl command will generate a selfsigned test certificate?

Which openssl command is used to inspect the information stored in a certificate?

The openssl command can be used to test connections with various secure services. What command will open a connection with a remote POP3S (POP3 over SSL) server?

Which of the following rule directives will email [email protected] and [email protected] when the Mail Configuration rule is violated?

When configuring LDAP to use certificates, which option should be used with the TLSVerifyClient directive to ask the client for a valid certificate in order to proceed normally?

Which of the following parameters in slapd.conf are used to tune the database cache size? (Choose TWO answers.)

An administrator notices that searches are being processed sequentially and taking a long time to complete. What should be done to speed up the searches?

Which command will instruct slurpd to process the replication error log in one-shot mode for the server 192.168.0.3?

To restrict user authentication to ONLY users who belong to a specific organizational unit, which file should be modified?

Which of the following tools are used to measure memory usage? (Select THREE correct answers.)

When performing a capacity planning exercise, when would taking measurements be most approriate?

In the following output, what resource is the program being observed using the most?

What operating system tools can be used to collect capacity planning data? (Select TWO correct)

Which of the following tools are used to measure network I/O?

What is the goal of capacity planning? (Select THREE correct answers.)

Which of the following is the BEST way to list all defined shell variables?

All of the following information is provided in any output from the netstat utility EXCEPT:

On a system using shadowed passwords, the correct permissions for /etc/passwd are ___ and the correct permissions for /etc/shadow are ___.

Which of the following Class B IPv4 networks are reserved by IANA for private address assignment and private routing? (Select TWO).

The correct crontab entry to execute the script chklog once per hour between 3 p.m. and 5 p.m. on Monday and Thursday each week is, which of the following?

Which of the following commands allows an administrator to make a shell variable visible to subshells?

Within smb. conf, which security setting will NOT require that a client connect using a valid usernarne and password before connecting to a shared resource?

Which of these are name resolution related files? (Choose Two)

If you want to print a listing of your computer's mail queues, what command would you use?

Which of the following tools is used to configure CUPS?

What command should be entered to print and then delete the file, foobar.txt?

You have replaced inetd with xinetd.What must be done after installing to ensure that your machine will work correctly?

Which configuration option can you use to prevent the root user from logging directly onto a machine using ssh?

What are the addresses falling into the range of 224.0.0.0 through 254.0.0.0?

Which of the following IP networks does RFC1918 reserve for use on private intranets?(Choose two)

A remote logging computer with a host name of foobar is being installed on the local network. What line in the system message configuration file will send all system messages to th...

You are writing a script and want to test the exit status of a process. Which of the following is true?

You are looking into a new script you received from your senior administrator. In the very first line you notice a #! followed by a path to a binary. The shell will ...

A user complained that programs started from his shell won't use his favorite editor. Which of the following files should you edit to change this?

In what file do you change default shell variables for all users?

The correct command to view "verbose" line printer queue information is

Ghostscript can be used as:

Of the ways listed, which is the best way to temporarily suspend a user's ability to interactively login?