F5-CTS-LTM BIG-IP Local Traffic Manager Practice Question
Exhibit
ltm persistence cookie my_cookie_persist {
cookie-name "my_app_cookie"
method insert
}Refer to the exhibit. What happens to the user session if the 'my_app_cookie' is not present in the initial client request?
⚠ Common exam trap
Candidates often assume the backend server must generate the cookie, forgetting that the BIG-IP 'insert' method handles the injection of the persistence cookie into the HTTP response header automatically.
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
✓
The BIG-IP inserts a cookie in the response.
With the 'insert' method, the BIG-IP will inject a persistence cookie into the HTTP response header sent to the client. The client browser will then store this cookie and include it in all subsequent requests. This allows the BIG-IP to correctly route the user back to the same backend server on future requests without the backend application needing to handle the session tracking logic itself.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The request is dropped by the LTM.
Why it's wrong here
The BIG-IP will not drop the request if a cookie is missing. Instead, it will load balance the request to a pool member using the configured algorithm, then insert the persistence cookie into the response as it returns to the client, ensuring subsequent requests are tracked appropriately for the session.
- ✓
The BIG-IP inserts a cookie in the response.
Why this is correct
The 'insert' method instructs the BIG-IP to generate and send a persistence cookie to the client in the HTTP response. This allows the LTM to handle session persistence transparently, ensuring that future requests from the same user are directed to the same server, thereby maintaining session continuity for the client.
- ✗
The LTM forces a redirect to the login page.
Why it's wrong here
The BIG-IP LTM does not have default logic to force redirects based on missing persistence cookies. The LTM's role is simply to facilitate traffic flow and session persistence. Any business-logic-driven redirects, such as forcing a user to a login page, must be implemented via iRules or the application itself.
- ✗
Persistence is permanently disabled for that session.
Why it's wrong here
Persistence is not disabled; it is simply established for the first time by the BIG-IP. By inserting the cookie in the response, the BIG-IP creates a state for the session that will be used by the client for all following requests, ensuring persistence is active for the remainder of the session.
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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 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.