An administrator needs to generate a list of services that are listening on TCP and/or UDP ports. Which of the following tools should the administrator use?

• A.ethtool
• B.route
• C.netstat
• D.portmap

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

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A Linux administrator receives the following while attempting to remove a file:

Which of the following commands will resolve the issue?

• A.cattr -i test.txt
• B.setfacl -m u:root:x test.txt
• C.chmod -0775 test.txt
• D.chcon -u system_u test.txt

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A junior administrator is configuring local name lookups for fully qualified domain names in an isolated environment. The administrator is given a checklist and must accomplish the following tasks:
Add localhost with loopback address.
Add 192.168.192.12/24 to resolve to database01.comptia.org
Given this scenario, which of the following steps should the administrator perform to accomplish these tasks?

• A.Open the /etc/nsswitch.conf file with a file editor and add the following lines:
  127.0.0.1 localhost
  192.168.192.12 database01.comptia.org
• B.Open the /etc/dhcpd.conf file with a file editor and add the following lines:
  127.0.0.1 localhost
  192.168.192.12 database01.comptia.org
• C.Open the /etc/hosts file with a file editor and add the following lines:
  127.0.0.1 localhost
  192.168.192.12 database01.comptia.org
• D.Open the /etc/network file with a file editor and add the following lines:
  127.0.0.1 localhost
  192.168.192.12 database01.comptia.org

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A user wants to list the lines of a log, adding a correlative number at the beginning of each line separated by a set of dashes from the actual message. Which of the following scripts will complete this task?

• A.Option A
• B.Option B
• C.Option D
• D.Option C

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