F5CAB1 Install, Initial Configuration, and Upgrade Practice Question
An administrator is upgrading a BIG-IP system. Which THREE tasks should be part of the pre-upgrade checklist to minimize risk?
⚠ Common exam trap
Candidates often assume the upgrade process itself handles configuration cleanup. They fail to realize that running 'tmsh verify load' is critical to catch syntax errors that would block a successful configuration migration.
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
✓
Create a UCS archive of the current configuration.
Pre-upgrade checklists are vital to prevent downtime and data loss. Creating a user configuration set (UCS) allows for easy recovery if the upgrade fails. Reviewing release notes identifies known issues specific to the target version. Validating that the current configuration is free of errors ensures the upgrade doesn't propagate invalid settings to the new boot location. These steps protect the environment's stability and operational integrity during the maintenance window.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create a UCS archive of the current configuration.
Why this is correct
The UCS file is the standard backup format for BIG-IP. It includes the configuration, license, and user data. Having a verified, off-box backup is the primary safety net, allowing the administrator to revert to a known working state if the installation process encounters unforeseen issues or post-upgrade failures.
- ✗
Install the latest iApps templates.
Why it's wrong here
While keeping templates updated is good practice, it is not a prerequisite for the core software upgrade. Upgrading the underlying TMOS is independent of iApps templates. Mixing these maintenance tasks increases the variables during the upgrade, making it harder to troubleshoot if a problem occurs post-installation.
- ✓
Review release notes for known issues.
Why this is correct
Release notes contain critical information regarding bugs, behavior changes, and hardware requirements for the target version. Ignoring these can lead to unexpected service outages or security vulnerabilities. Reviewing them allows the administrator to plan for mitigation strategies before the upgrade begins, ensuring a smoother transition to the new software.
- ✓
Run 'tmsh verify load' on the configuration.
Why this is correct
Validating the configuration using 'tmsh verify load' ensures that there are no syntax errors that would prevent the configuration from loading after the upgrade. If the current configuration is invalid, the upgrade process might result in a system that boots but fails to load the services correctly.
- ✗
Change the root password to a new value.
Why it's wrong here
Changing authentication credentials during an upgrade is not recommended. It introduces an unnecessary change and could lead to lockout if the password is forgotten or does not update correctly during the migration. Security changes should be handled as separate, planned administrative events, not during a major software upgrade.
Visual reference
About these practice questions
One of 80 original F5CAB1 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.