AWS Certified Developer - Associate Practice Mode

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose B1

  B is Correct — In Lambda, CPU power is allocated proportionally to memory. More memory = more vCPU automatically assigned. For a CPU-bound function, increasing memory directly increases CPU performance.

• Chose B2

  A) Eliminated - We cannot directly control the CPU core count. B) Correct - increasing memory not only gives more memory but also allocates more CPU power to the function. C) Eliminated - Reserved concurrency controls how many instances of the function can run at the same time, but it doesn’t improve the performance of a single function execution D) Eliminated - Increasing the timeout allows the function to run longer, but it doesn’t improve the speed of the function

• Chose B1

  ==> discard A: can't directly increase lambda CPU ==> discard C: concurrecny for handling many tasks at same time capacibility, not increase speed response when CPU-bound => discard D: be not relevant, increase maximum time to wait function to finish B: with lambda, you can increase memory, implicity CPU usage for lambda also up too