SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating a stateful application to AWS. The application uses sticky sessions (session affinity) on the current on-premises load balancer. The company wants to use an Application Load Balancer (ALB) in AWS. Which feature should be enabled?
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
✓
Sticky sessions (session affinity) using a cookie generated by the load balancer.
ALB supports sticky sessions (session affinity) using a cookie generated by the load balancer, which meets the requirement to maintain session state from the on-premises environment. Option A (connection draining) is used to allow in-flight requests to complete during instance deregistration, not for session affinity. Option C (health checks) ensures traffic is only sent to healthy instances, but does not maintain session stickiness. Option D (cross-zone load balancing) distributes traffic evenly across all availability zones, but does not affect session affinity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Connection draining (deregistration delay).
Why it's wrong here
Helps with graceful shutdown, not sticky sessions.
- ✓
Sticky sessions (session affinity) using a cookie generated by the load balancer.
Why this is correct
Ensures requests from the same client go to the same target.
- ✗
Health checks to ensure only healthy instances receive traffic.
Why it's wrong here
Not related to session stickiness.
- ✗
Cross-zone load balancing.
Why it's wrong here
Does not relate to session stickiness.
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