F5CAB4 Control Plane Administration Practice Question
When managing multiple BIG-IP devices, why is it recommended to use a centralized NTP server for all devices?
⚠ Common exam trap
Candidates often assume NTP is only for system logs. They fail to realize that certificate validation and SSL handshakes rely heavily on system time accuracy for successful authentication.
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
✓
To ensure accurate log correlation and certificate validity.
Time synchronization is vital for distributed systems, especially those performing SSL/TLS handshakes and logging. If clocks are out of sync, log entries become difficult to correlate during forensic analysis, and certificate validation can fail. Centralizing NTP ensures consistency across the entire environment, which is a foundational requirement for both security compliance and effective troubleshooting of the control plane across multiple devices.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To increase the throughput of the BIG-IP system.
Why it's wrong here
NTP synchronization is a management-plane task that has no impact on the performance of the TMM or the overall data plane throughput. It is strictly for maintaining accurate system time for logs and security protocols, and it does not affect the device's traffic-processing capabilities in any way.
- ✓
To ensure accurate log correlation and certificate validity.
Why this is correct
Accurate time is essential for correlating logs from multiple devices during troubleshooting. Additionally, SSL and authentication processes rely on valid timestamps for certificate validation. Using a centralized NTP server ensures all devices have consistent time, which is critical for security and effective operational management of the entire infrastructure.
- ✗
To reduce the CPU utilization of the management plane.
Why it's wrong here
NTP synchronization itself consumes a negligible amount of CPU. While it's a best practice, its primary purpose is not to save CPU cycles but to maintain time accuracy. The impact on control plane CPU usage is insignificant compared to other tasks like logging or API management.
- ✗
To automate the software upgrade process across devices.
Why it's wrong here
NTP has nothing to do with software upgrades, which are handled through separate image-management processes. While upgrades should be synchronized across HA pairs for consistency, NTP only provides the time reference and does not facilitate the actual transfer or installation of software packages on the BIG-IP.
About these practice questions
This F5CAB4 question is part of Courseiva's 40-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam 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 F5CAB4 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 F5CAB4 exam.