Free CompTIA XK0-006 Exam Dumps Questions & Answers

A Linux administrator is attempting to capture all network traffic coming to the server from the
10.0.6.5 IP address. Which of the following commands should the administrator run on the server to achieve the goal?

• A.tcpdump addr 10.0.6.5
• B.tcpdump host 10.0.6.5
• C.tcpdump net 10.0.6.5
• D.tcpdump ip 10.0.6.5

An average of one out of three users in a company cannot reach the company website. A Linux administrator determines that one of the three website servers is down. The administrator inspects the DNS configuration for the website and notices the following entry:

Which of the following accurately explains the issue?

• A.One of the DNS records has not been signed with a DNSSEC-supported key, and this is causing some web browsers to reject the DNS response.
• B.The DNS configuration is missing corresponding AAAA records and PTR records, and this is causing clients to fail the hostname translation.
• C.DNS returns all three records in a different order each time, and the browser typically uses the first address in the DNS response.
• D.The administrator has incorrectly configured the DNS server to be an iterative resolver instead of an authoritative resolver.

An administrator needs to append the output of a Linux command to an existing file for later analysis. Which of the following command-line strings should the administrator use?

• A.ls >> file.txt
• B.cat ls > file.txt
• C.tcc ls > awk file.txt
• D.echo ls | sed -i file.txt

An administrator needs to create a new logical volume from sets of provisioned disks. Which of the following shows the correct order of commands the administrator should execute?

• A.1. pvcreate, 2. vgcreate, 3. lvcreate
• B.1. vgcreate, 2. lvcreate, 3. pvcreate
• C.1. lvcreate, 2. pvcreate, 3. vgcreate
• D.1. vgcreate, 2. pvcreate, 3. lvcreate

A small group of remote users needs permission to run some administrative commands on a Linux server. Which of the following approaches is the best way to address this request?

• A.Set the configuration parameter PermitRootLogin on sshd_configto "yes" and share the root password with this group of users.
• B.Create a Linux group, add the users, and configure this group on /etc/sudoersto use sudo, thus allowing them to switch to root user.
• C.Request a list of utilities they need to use with elevated privileges, and add the appropriate rules.
• D.Set the sticky bit in all binaries requested for use by this group of users.