A Linux administrator is helping the security team troubleshoot an SELinux policy violation incident. Which of the following would be the BEST utility command to display SELinux violation and AVC denial messages?

• A.aureport | grep AVC
• B.sealert -a /var/log/audit/audit.log
• C.cat /var/log/messages | grep selinux
• D.journalctl | grep sealert

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A systems administrator copied the latest archive Of the corporate application, corpapp.tar.gz, to a new server. The backup software lists the following entry in the log file:

Which of the following should the administrator run to verify the archive copied correctly without corruption?

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

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A junior Linux administrator needs to access production servers using a secure SSH protocol. Which of the following files should contain the public key to gain remote access to the server?

• A.~/ssh/authorized-keys
• B./etc/authorized_keys
• C./etc/sshd/ssh.conf
• D.~/.ssh/authorized_keys

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Which of the following commands should a Linux administrator use to open the firewall to allow incoming database connections?
A)

B)

C)

D)

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

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A junior Linux administrator is updating local name resolution to support IPv6. The administrator issues the command cat /etc/hostsand receives the following output:
127.0.0.1 localhost
Which of the following actions should the administrator perform to accomplish this task?

• A.Modify the /etc/hostsfile, and add the ipv6 localhostentry to the file.
• B.Modify the /etc/hostsfile, and add the ::1 localhostentry to the file.
• C.Modify the /etc/hostsfile, and add the ipv4 localhostentry to the file.
• D.Modify the /etc/hostsfile, and add the 0.0.0.0 localhostentry to the file.

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