Exam AWS Certified Developer Associate topic 1 question 189 discussion

Exam question from Amazon's AWS Certified Developer Associate

Question #: 189
Topic #: 1

[All AWS Certified Developer Associate Questions]

A developer is building a three-tier web application that should be able to handle a minimum of 5000 requests per minute. Requirements state that the web tier should be completely stateless while the application maintains session state for the users.

How can session data be externalized, keeping latency at the LOWEST possible value?

A. Create an Amazon RDS instance, then implement session handling at the application level to leverage a database inside the RDS database instance for session data storage.
B. Implement a shared file system solution across the underlying Amazon EC2 instances, then implement session handling at the application level to leverage the shared file system for session data storage.
C. Create an Amazon ElastiCache Memcached cluster, then implement session handling at the application level to leverage the cluster for session data storage.
D. Create an Amazon DynamoDB table, then implement session handling at the application level to leverage the table for session data storage.

Show Suggested Answer

Suggested Answer: C 🗳️

by k1kavi1 at Nov. 25, 2022, 9:48 a.m.

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Comments

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rushi0611

2 years, 1 month ago

Selected Answer: C

Lowest LATENCY = Memcache

upvoted 1 times

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rcaliandro

2 years, 1 month ago

Selected Answer: C

Low latency, we have to chooes Elastic Cache memcache Cluster. I'll go for C

upvoted 1 times

rcaliandro

2 years, 1 month ago

Why it is specified "cluster". This should be an Elastic Cache Redis property, shouldn't be?

upvoted 2 times

Dipak25

1 year, 8 months ago

Cluster is property for Amazon ElastiCache Memcached. Check following link https://docs.aws.amazon.com/AmazonElastiCache/latest/mem-ug/WhatIs.html

upvoted 1 times

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BATSIE

2 years, 3 months ago

Amazon ElastiCache is a managed in-memory data store that is optimized for low-latency operations. Using a Memcached cluster to store session data can provide fast access to the data, and is designed for high-throughput scenarios. D can work but will require addional additional setup and configuration compared to ElastiCache Memcached.

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GD_ZH

2 years, 6 months ago

It should be D. Amazon ElastiCache Memcached does not support cluster, only Redis supports cluster.

upvoted 2 times

Dipak25

1 year, 8 months ago

Where did you get Amazon ElastiCache Memcached does not support cluster? Check following link https://docs.aws.amazon.com/AmazonElastiCache/latest/mem-ug/WhatIs.html

upvoted 1 times

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gaddour_med

2 years, 6 months ago

Selected Answer: C

Which is faster DynamoDB or ElastiCache? Compared to traditional databases, which are usually double-digit milliseconds, ElastiCache is much faster and serves the purpose of an in-memory data store.

upvoted 1 times

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