F5-CTS-LTM BIG-IP Local Traffic Manager Practice Question
What is the primary function of the LTM 'OneConnect' profile in an environment with high-volume short-lived connections?
⚠ Common exam trap
Candidates often mistake OneConnect for a simple caching mechanism or a security feature, failing to recognize its specific role in reducing TCP overhead by multiplexing connections between the BIG-IP and backend servers.
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
✓
It multiplexes client-side and server-side connections to reduce server CPU load.
OneConnect enables TCP connection multiplexing. It allows the BIG-IP to keep backend TCP connections open even after a client has closed its connection. By reusing these existing idle connections for new client requests, the LTM significantly reduces the overhead on backend servers associated with the TCP three-way handshake and slow-start process, which is essential for scaling performance in high-traffic web environments.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It compresses HTTP traffic to reduce bandwidth usage.
Why it's wrong here
HTTP compression is handled by an HTTP compression profile, not OneConnect. While OneConnect helps performance by reusing connections, it does not modify the payload data or apply compression algorithms to reduce the total amount of data sent across the wire, which is a completely different optimization technique.
- ✓
It multiplexes client-side and server-side connections to reduce server CPU load.
Why this is correct
OneConnect manages a pool of idle server-side TCP connections. When a new request arrives, it is mapped to an existing idle connection rather than creating a new one. This reduces the CPU overhead on backend servers by eliminating redundant TCP handshakes, improving overall throughput in high-volume environments.
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It caches static content to prevent repetitive requests to backend servers.
Why it's wrong here
Content caching is managed by the RAM Cache feature of the LTM, not OneConnect. Caching stores the actual application objects in memory on the BIG-IP, whereas OneConnect focuses strictly on the efficiency of the underlying TCP transport connections between the BIG-IP and the backend application servers.
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It performs SSL decryption to offload cryptographic tasks.
Why it's wrong here
SSL decryption is handled by the Client SSL and Server SSL profiles. OneConnect is purely a TCP optimization mechanism. It operates at the transport layer and does not interact with the SSL/TLS layer, meaning it cannot offload the cryptographic processing required for encrypted traffic flows.
Visual reference
About these practice questions
One of 119 original F5-CTS-LTM 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 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.