Comprehensive and Detailed Explanation From BIG-IP Administration Control Plane Administration do38cuments: While HA state is managed under "Device Management," the specific failover behavior of a traffic object is linked to its configuration. A Virtual Address must be associated with a "Traffic Group" (usually traffic-group-1) to fail over. This association and the resulting floating status can be verified by viewing the Virtual Server or Virtual Address list under Local Traffic > Virtual Servers.

On BIG-IP systems, authentication and authorization events are logged in /var/log/secure. This includes:
* Successful and failed SSH login attempts
* Invalid user authentication attempts
* PAM (Pluggable Authentication Module) authentication failures
* Access denials related to secure services
Why the other options are incorrect:
* /var/log/messages contains general system messages and service events, not detailed authentication failures.
* /var/log/audit records administrative configuration changes (who changed what and when), not login attempts.
* /var/log/ltm logs traffic-management (TMM) and application-related events.
Therefore, the correct log file for investigating unauthorized SSH login attempts is /var/log/secure.

A QKView is a comprehensive snapshot of the device's Control Plane state, configuration, and logs used for troubleshooting. By default, the qkview utility stores its generated output file in the /var/tmp/ directory.
Administrators must know this path to retrieve the file for upload to F5 iHealth or Support.

When restoring a User Configuration Set (UCS) file, BIG-IP allows administrators to selectively exclude the license during the restore process. From the CLI, this is accomplished using the no-license option with the tmsh load /sys ucs command.
The command:
tmsh load /sys ucs <ucs filename> no-license
restores:
* System configuration
* Certificates and keys
* Device and traffic objects
while explicitly excluding the license file, which is required when:
* Migrating configurations between devices
* Restoring to hardware with a different license
* Avoiding license conflicts or overwrites
Why the other options are incorrect:
* A does not provide the option to exclude the license.
* B restores the UCS including the license, which does not meet the requirement.
* D is incorrect because the BIG-IP GUI does not provide a checkbox to exclude the license during UCS restore.
Therefore, the correct and supported method is C.

Comprehensive and Detailed Explanation From BIG-IP Administration Control Plane Administration documents:
On BIG-IP systems, authentication and authorization events are logged in /var/log/secure. This includes:
Successful and failed SSH login attempts
Invalid user authentication attempts
PAM (Pluggable Authentication Module) authentication failures
Access denials related to secure services
Why the other options are incorrect:
/var/log/messages contains general system messages and service events, not detailed authentication failures.
/var/log/audit records administrative configuration changes (who changed what and when), not login attempts.
/var/log/ltm logs traffic-management (TMM) and application-related events.
Therefore, the correct log file for investigating unauthorized SSH login attempts is /var/log/secure.