F5CAB1 Install, Initial Configuration, and Upgrade Practice Question
Exhibit
tmsh show sys software status -------------------------------------------------- Sys::Software Status Volume Product Version Build Active Status -------------------------------------------------- HD1.1 BIG-IP 15.1.0 0.0.12 yes complete HD1.2 BIG-IP 16.1.2 0.0.10 no complete
Refer to the exhibit. An administrator wants to upgrade the system to version 16.1.2. Based on the output, what should the administrator do next?
⚠ Common exam trap
Candidates often assume the system automatically switches to the new version after installation. It does not; the administrator must manually trigger a reboot to switch to the newly installed boot volume.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Reboot the system to switch to HD1.2.
The output shows the current active version is 15.1.0 on HD1.1, and 16.1.2 is already installed on HD1.2. Because the software is installed but not active, the administrator must trigger a reboot to switch the active volume. This workflow is essential for minimizing downtime, as the installation phase is already finished and only the boot partition switch remains to finalize the system upgrade process.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Run the install command for 16.1.2 again.
Why it's wrong here
The status column shows 'complete', indicating the installation is finished. Running the install command again is redundant and consumes system resources unnecessarily. The software is already staged and ready to be booted, so the administrator should proceed directly to changing the boot partition.
- ✓
Reboot the system to switch to HD1.2.
Why this is correct
Since 16.1.2 is already installed and marked as 'complete' on HD1.2, the final step is to instruct the system to boot from that volume. Upon reboot, the BIG-IP will load the configuration into the new software version, completing the transition from the old version.
- ✗
Delete HD1.1 to free up space.
Why it's wrong here
Deleting the currently active partition while the system is running is not possible and would lead to a system crash. The current version should be kept as a known-good backup until the new version is verified as stable after the upgrade and subsequent testing.
- ✗
Create a new volume HD1.3.
Why it's wrong here
Creating a new volume is unnecessary because HD1.2 is already prepared with the correct software version. Adding more volumes consumes disk space that could be used for other critical functions like log storage or packet capture files, and it does not help in finalizing the current upgrade.
About these practice questions
Courseiva writes every F5CAB1 question from scratch — 80 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official F5 exam blueprint
This F5CAB1 practice question is part of Courseiva's free F5 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the F5CAB1 exam.