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Exam AWS-SysOps topic 1 question 601 discussion

Exam question from Amazon's AWS-SysOps
Question #: 601
Topic #: 1
[All AWS-SysOps Questions]

A company is deploying a legacy web application on Amazon EC2 instances behind an ELB Application Load Balancer. The application worked well in the test environment. However, in production, users report that they are prompted to log in to the system several times an hour.
Which troubleshooting step should be taken to help resolve the problem reported by users?

  • A. Confirm that the Application Load Balancer is in a multi-AZ configuration.
  • B. Enable health checks on the Application Load Balancer.
  • C. Ensure that port 80 is configured on the security group.
  • D. Enable sticky sessions on the Application Load Balancer.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
Reference:
https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/environments-cfg-alb.html
by saumenP at Oct. 22, 2019, 12:40 p.m.
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saumenP
Highly Voted 2 years, 7 months ago
D should be correct
upvoted 14 times
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albert_kuo
Most Recent 10 months ago
Selected Answer: D
Enabling sticky sessions can be particularly useful for legacy web applications that are not designed to be session-independent or distributed across multiple instances. By enabling sticky sessions, you can ensure that the user's session remains associated with a specific backend instance, reducing the likelihood of frequent login prompts.
upvoted 1 times
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TroyMcLure
2 years, 6 months ago
Correct Answer: D
upvoted 1 times
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RicardoD
2 years, 6 months ago
D is the answer
upvoted 2 times
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HVarada
2 years, 6 months ago
Answer is "D".
upvoted 1 times
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abhishek_m_86
2 years, 6 months ago
D. Enable sticky sessions on the Application Load Balancer.
upvoted 2 times
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Radhaghosh
2 years, 6 months ago
Agreed. D. Enable sticky sessions on the Application Load Balancer.
upvoted 2 times
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jackdryan
2 years, 6 months ago
I'll go with D
upvoted 1 times
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MFDOOM
2 years, 6 months ago
D. Enable sticky sessions on the Application Load Balancer.
upvoted 1 times
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neel376
2 years, 7 months ago
Do ALBs allow sticky sessions?
upvoted 2 times
AWS_Noob
2 years, 6 months ago
Yes. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/. On the navigation pane, under LOAD BALANCING, choose Target Groups. Select the target group. On the Description tab, choose Edit attributes. On the Edit attributes page, do the following: Select Enable load balancer generated cookie stickiness. For Stickiness duration, specify a value between 1 second and 7 days. Choose Save.
upvoted 5 times
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karmaah
2 years, 7 months ago
Yes.Even though D is correct, in Real time, if you use sticky session along with ELB then, Load will go to particular instance only if the request repeatedly comes from same instance and will impact the load spread. However, for this question, Ans is D.
upvoted 1 times
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