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Exam AWS-SysOps topic 1 question 412 discussion

Exam question from Amazon's AWS-SysOps
Question #: 412
Topic #: 1
[All AWS-SysOps Questions]

What does enabling a sticky session with ELB do?

  • A. Routes all the requests to a single DNS
  • B. Ensures that all requests from the user's session are sent to multiple instances
  • C. Binds the user session with a specific instance
  • D. Provides a single ELB DNS for each IP address
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Suggested Answer: C 🗳️
By default, a load balancer routes each request independently to the registered instance with the smallest load. However, you can use the sticky session feature
(also known as session affinity), which enables the load balancer to bind a user's session to a specific instance. This ensures that all requests from the user during the session are sent to the same instance.
Reference:
http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/elb-sticky-sessions.html

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albert_kuo
10 months, 1 week ago
Selected Answer: C
When sticky sessions are enabled, the load balancer associates the user's session with a specific backend instance. This ensures that all requests from that user's session are consistently routed to the same instance.
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