F5CAB1 Install, Initial Configuration, and Upgrade Practice Question
Which THREE components are verified during the installation process of a new BIG-IP software version?
⚠ Common exam trap
Candidates frequently select 'license validity' as a verification step. While important, the system primarily checks physical/logical prerequisites like checksums, disk space, and hardware compatibility during the actual installation process.
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
✓
Software image integrity checksum.
During installation, the BIG-IP system validates the integrity of the software image to prevent corrupted installations. It also checks for sufficient disk space in the target volume to ensure the system can successfully extract all files. Finally, the system confirms hardware compatibility, ensuring the specific platform model supports the software version being installed, which is crucial for preventing kernel panic or driver mismatch issues after the first boot.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Software image integrity checksum.
Why this is correct
Verifying the integrity of the ISO image via MD5 or SHA checksums is a standard step in the installation process. This ensures that the file was downloaded without corruption and is safe to write to the storage partition, preventing system failure caused by incomplete or altered installation files.
- ✓
Available disk space in the target volume.
Why this is correct
The installer checks the destination partition to ensure enough capacity exists for the new operating system files. If disk space is insufficient, the installation will abort to prevent a partial write, which would otherwise result in an unbootable system and require manual intervention via the serial console.
- ✗
Local client user session count.
Why it's wrong here
The count of active client user sessions is irrelevant to the system upgrade process. The upgrade logic focuses on the health of the hardware, the integrity of the binary images, and the configuration migration path. User sessions are terminated regardless during the reboot phase, so they are not checked.
- ✓
Platform hardware compatibility.
Why this is correct
The installation process validates that the hardware platform is supported by the target software version. This is critical because certain software releases drop support for older hardware models, and installing incompatible firmware could lead to hardware failure, driver crashes, or an inability to boot the device effectively.
- ✗
External DNS server latency.
Why it's wrong here
DNS latency is not a factor in the software installation process. The installation is performed locally from the image stored on the device or a mounted media. Network reachability to external servers is not required during the actual installation steps, making DNS performance irrelevant to the success of the upgrade.
About these practice questions
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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.