Google Professional Cloud Network Engineer Question 400
Single answerGoogle Cloud PlatformYou are configuring a backend service for a global external HTTP(S) load balancer in Google Cloud. The service must optimize traffic distribution based on backend CPU utilization to ensure the best use of backend resources. Which of the following balancing methods should you use?
- A
Rate-based balancing method (RPS)
- B
CPU utilization balancing method
- C
Session affinity balancing method
- D
Capacity-based balancing method
Show answer and explanation
Correct answer: B
Explanation
The CPU utilization balancing method is specifically designed to distribute traffic based on the CPU usage of backend instances, ensuring efficient use of backend resources. Other methods, such as rate-based or session affinity, are designed for different purposes and do not address the requirement to optimize traffic based on CPU utilization.
- A. Incorrect.
Rate-based balancing method (RPS) distributes traffic based on the number of requests per second a backend can handle. This is not suitable for optimizing traffic based on backend CPU utilization.
- B. Correct.
CPU utilization balancing method distributes traffic based on the CPU utilization of backend instances, making it the correct choice for this scenario.
- C. Incorrect.
Session affinity balancing method ensures that requests from the same client are sent to the same backend. This is unrelated to optimizing traffic based on backend CPU utilization.
- D. Incorrect.
Capacity-based balancing method is not a valid balancing method in Google Cloud's external HTTP(S) load balancer.