F5-CTS-LTM BIG-IP Local Traffic Manager Practice Question
Exhibit
tmsh show ltm virtual vs_secure_site -------------------------------------------------- Ltm::Virtual Server: vs_secure_site -------------------------------------------------- Status Availability : offline State : enabled Reason : The virtual server has no available members
Refer to the exhibit. The virtual server 'vs_secure_site' is showing as 'offline'. What is the most immediate step to take to restore service?
⚠ Common exam trap
Candidates often try to reset the virtual server or clear connections. They waste time on the frontend configuration instead of investigating the backend pool, which is the actual cause of the offline status.
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
✓
Investigate the pool members and health monitor status.
When a virtual server status is 'offline' due to 'no available members', it indicates that all pool members associated with that virtual server have failed their health checks. The most immediate and logical step is to inspect the pool members and their monitors to identify why they are failing, as the virtual server cannot function without at least one healthy backend server.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Delete and recreate the virtual server.
Why it's wrong here
Deleting and recreating the virtual server will not resolve a backend issue. The virtual server is working correctly as a listener; it is simply reporting that the underlying resources are unavailable. This action is disruptive and does nothing to address the root cause of the pool member failures.
- ✓
Investigate the pool members and health monitor status.
Why this is correct
The 'no available members' reason clearly points to the pool. By checking the pool status and health monitors, you can determine which server is failing and why. This is the correct troubleshooting path, as it addresses the source of the outage rather than guessing at configuration errors elsewhere.
- ✗
Restart the BIG-IP TMM service.
Why it's wrong here
Restarting TMM is a high-impact operation that would drop all connections on the box. It is entirely unnecessary when the issue is limited to a single virtual server's pool availability. Always exhaust logical troubleshooting steps, like checking pool health, before considering system-level service restarts that affect all traffic.
- ✗
Change the virtual server IP address.
Why it's wrong here
Changing the IP address of the virtual server does not fix the backend pool's health. The virtual server is already 'up' and listening; it just cannot forward traffic because the pool members are unavailable. Modifying the VIP address would only cause further downtime and break existing client connectivity configurations.
About these practice questions
Courseiva writes every F5-CTS-LTM question from scratch — 119 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 F5-CTS-LTM 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 F5-CTS-LTM exam.