Exam AWS Certified Developer Associate topic 1 question 251 discussion

Exam question from Amazon's AWS Certified Developer Associate

Question #: 251
Topic #: 1

[All AWS Certified Developer Associate Questions]

A software engineer developed an AWS Lambda function in Node.js to do some CPU-intensive data processing. With the default settings, the Lambda function takes about 5 minutes to complete.

Which approach should a developer take to increase the speed of completion?

A. Instead of using Node.js. rewrite the Lambda function using Python.
B. Instead of packaging the libraries in the ZIP file with the function, move them to a Lambda layer and use the layer with the function.
C. Allocate the maximum available CPU units to the function.
D. Increase the available memory to the function.

Show Suggested Answer

Suggested Answer: D 🗳️

by kapil206001 at Nov. 25, 2022, 1:08 p.m.

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rcaliandro

1 year, 11 months ago

Selected Answer: D

D, by increasing the memory to a lambda function, also the CPU will be increased. Memory + CPU = improvement of the performances

upvoted 2 times

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DrCloud

2 years, 6 months ago

Selected Answer: D

Memory and computing power: Memory is the principal lever available to Lambda developers for controlling the performance of a function. The amount of memory also determines the amount of virtual CPU available to a function. Adding more memory proportionally increases the amount of CPU, increasing the overall computational power available. If a function is CPU-, network- or memory-bound, then changing the memory setting can dramatically improve its performance. https://docs.aws.amazon.com/lambda/latest/operatorguide/computing-power.html

upvoted 2 times

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