Determine When to Upgrade Software F5CAB4 Practice Questions (Page 1)

Questions 1–5

1. 1expert · hard

   A BIG-IP runs v12.1.6. The upgrade matrix shows v12.1.6 → v14.1 → v16.1. The device has 4 GB free on /var, but the v14.1 upgrade requires 5 GB. The administrator can free 1 GB by removing old logs. What is the best upgrade path?

   • AUpgrade directly to v16.1; it requires less space.
   • BFree 1 GB, upgrade to v14.1, then to v16.1.
   • CUpgrade to v14.1 without freeing space.
   • DUpgrade to v13.1 first, then to v16.1.
   Reveal Solution Discussion Select an answer first
2. 2application · medium

   Before upgrading a BIG-IP device from v14.1 to v15.1, an administrator runs `tmsh show sys hardware` and sees that the /var partition has 2 GB free. The upgrade requires 4 GB. What should the administrator do?

   • AUse the `tmsh load sys config` command to compress the configuration.
   • BUpgrade to v15.1 anyway; disk space is only a warning.
   • CFree up disk space by removing old ISOs and logs, then retry the upgrade.
   • DProceed with the upgrade; the installer will free space automatically.
   Reveal Solution Discussion Select an answer first
4. 3foundation · medium

   Which of the following is a valid pre-upgrade check for a BIG-IP device?

   • AReviewing the audit log for user logins
   • BChecking the current traffic throughput
   • CTesting the failover behavior of the active unit
   • DVerifying that the configuration is compatible with the target version
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5. 4foundation · medium

   What does it mean when a BIG-IP software version reaches end-of-support (EOS)?

   • AThe version is still supported but requires a special license
   • BThe version will automatically upgrade itself to the latest release
   • CF5 will no longer provide software updates, security patches, or technical support for that version
   • DThe version can no longer be installed on any hardware platform
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   Before upgrading a BIG-IP from v14.1 to v15.1, an administrator reviews the release notes and finds that a custom iRule uses a command that was deprecated in v15.1. What should the administrator do?

   • AProceed with the upgrade; the iRule will still work.
   • BUpgrade and then fix the iRule if it breaks.
   • CRemove the iRule and hope no one notices.
   • DModify the iRule to use the new command before upgrading.
   Reveal Solution Discussion Select an answer first