F5-CTS-LTM BIG-IP Local Traffic Manager Practice Question
Which load balancing algorithm would be best suited for a pool of servers where the servers have significantly different hardware specifications and processing capabilities?
⚠ Common exam trap
Candidates select 'Least Connections' assuming it automatically accounts for hardware differences, but it only tracks active sessions, not the actual processing power or hardware capability of the nodes.
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
✓
Ratio (member)
When servers in a pool are heterogeneous, using a simple round-robin approach causes faster servers to sit idle while slower servers become overloaded. The 'Ratio' algorithm allows administrators to assign a weight to each server, ensuring that higher-capacity servers receive a proportionally larger share of the traffic, which optimizes the overall system performance and prevents bottlenecking on the weaker backend hardware.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Round Robin
Why it's wrong here
Round Robin distributes connections equally among all servers in the pool, regardless of their capacity. This is inefficient for servers with different capabilities, as it will likely overwhelm the slower machines while underutilizing the faster ones, leading to poor application performance and potential server-side resource exhaustion.
- ✓
Ratio (member)
Why this is correct
Ratio (member) allows the administrator to define weights for each pool member. By assigning a higher weight to more powerful servers, the BIG-IP can distribute traffic based on the actual capacity of the backend hardware, ensuring that no single server becomes a performance bottleneck under load.
- ✗
Least Connections
Why it's wrong here
Least Connections is useful for long-lived sessions, but it does not account for the varying processing power of servers. It only looks at the number of active sessions, meaning a high-performance server and a low-performance server would receive the same number of connections, leading to uneven load distribution.
- ✗
Fastest
Why it's wrong here
The Fastest algorithm routes traffic to the server that responded fastest to the previous requests. While dynamic, it can be unpredictable and may cause frequent oscillations in traffic distribution if the response times fluctuate due to factors like disk I/O or background processes rather than pure hardware capacity.
About these practice questions
This F5-CTS-LTM question is part of Courseiva's 119-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 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.