Practice Test 2 | Google Cloud Certified Professional Cloud Network Engineer | Dumps | Mock Test
You are required to configure the external load balancer for your firm’s application in GCP. Some of the key requirements is pass-through traffic, single region backend, maintaining user’s session whilst ensuring a good distribution of traffic across instances.
Which configuration meets the given requirement?
A. Network Load balancer with default Session Affinity configuration
B. Network Load balancer with Client IP as the Session Affinity configuration
C. SSL Proxy load balancer with Client IP as the Session Affinity configuration.
D. SSL Proxy Load balancer with default Session Affinity configuration
Answer: A
Options A is correct, The Network load balancer is a pass-through type of load balancer and the default Session Affinity ensures that traffic (different sessions) is distributed evenly across the backend.
Option B is incorrect, all sessions from the same client to reach the same backend, as long as the backend stays healthy. In general, it will provide for better session affinity than the default method, but the overall traffic may not be as evenly distributed.
Option C and D is incorrect, because SSL Proxy load balancer cannot be used for pass- through traffic. It proxies all traffic.
See https://cloud.google.com/load-balancing/docs/target-pools#sessionaffinity for more explanation of Session Affinity option in GCP.
See https://cloud.google.com/load-balancing/docs/choosing-load-balancer for more on how to choose a load balancer in GCP.
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