Free CompTIA XK0-004 Exam Dumps Questions & Answers

An administrator tries to log m to a Linux host with the root account but receives the following error: permission denied. A colleague confirms the password being used is correct. Which of the following is the MOST likely cause..

• A.  PermitRootLogin IS Set to no in /etc/sah/sshd/config
• B.  The administrator must first run ssh-copy-id
• C.  The root account was removed from the system for security purposes
• D.  The Linux host cannot connect to the LDAP server
• E.  The root account is locked out from too many failed password attempts

An administrator is tasked with increasing the size of the volume /dev/vg/lv to 20GB. Which of the following BEST illustrates the steps the administrator should take?

• A.  lvextend -L20G /dev/vg/lv; resize2fs /dev/vg/lv
• B.  mkfs -L20G /dev/vg/lv; tune2fs /dev/vg/lv
• C.  parted -L20G /dev/vg/lv; remount /dev/vg/lv
• D.  vgextend -L20G /dev/vg/lv; resizelv /dev/vg/lv

A Linux user needs to connect to a remote email server named mail.foo.com through the SMTP port.
Which of the following commands will accomplish this task?

• A.  netcat mail.foo.com 110
• B.  traceroute mail.foo.com 25
• C.  traceroute mail.foo.com 110
• D.  netcat mail.foo.com 25

A Linux administrator wants to fetch a Git repository from a remote Git server.
Which of the following is the BEST command to perform this task?

• A.  git checkout
• B.  git merge
• C.  git config
• D.  git clone

Which of the following files would a junior systems administrator check to verify DNS server settings?

• A.  /etc/rsolveconf
• B.  /etc/network
• C.  /etc/hosts
• D.  /etc/nsswitch,conf