An administrator is logged into a server remotely and wants to determine if the system is a VM. Which of the following commands would assist with this?

• A.dmesg
• B.ps
• C.top
• D.vmstat

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A Linux administrator installed a new network adapter and temporarily disabled the network service from starting on boot. The partial output of chkconfig is as follows:

Which of the following commands BEST describes how the administrator should re-enable the network service?

• A.chkconfig --level 6 network on
• B.chkconfig --level 345 network on
• C.chkconfig --level 0-6 network on
• D.chkconfig --level 12 network on
• E.chkconfig --level 0 network on

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Ann, a user, has created a new directory and noticed that permissions on the new directory are as follows:
drwx------. 1 ann ann 0 Jun 11 08:20 work
Which of the following should the administrator do to restore default permissions for newly created directories?

• A.Change umask value in /etc/profile.
• B.Run chmod command to update permissions.
• C.Modify directory ownership to ann:ann with chown.
• D.Execute chattr command to restore default access.

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A user, jsmith, needs access to database files located on a server. Which of the following will add jsmith to the
"dba" group and preserve existing group memberships?

• A.usermod -a -G dba jsmith
• B.usermod -g dba jsmith
• C.useradd -g dba jsmith
• D.groupmod dba -u jsmith

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A Linux administrator needs to remotely update the contents of the www.comptia.org/contacts URL.
Which of the following commands would allow the administrator to download the current contents of the URL before updating?

• A.curl www.comptia.org/contacts
• B.dig www.comptia.org/contacts
• C.apt-get www.comptia.org/contacts
• D.yum list www.comptia.org/contacts

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