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What is the main purpose of using Lambda layers in AWS Lambda functions?

easy📝 Conceptual Q11 of 15
AWS - Lambda
What is the main purpose of using Lambda layers in AWS Lambda functions?
ATo share common code and libraries across multiple Lambda functions
BTo increase the memory size of a Lambda function
CTo schedule Lambda functions to run at specific times
DTo monitor Lambda function execution logs
Step-by-Step Solution
Solution:
  1. Step 1: Understand Lambda layers purpose

    Lambda layers are designed to hold shared code or libraries that multiple Lambda functions can use.
  2. Step 2: Compare options with purpose

    Options A, C, and D describe unrelated Lambda features like memory, scheduling, and logging.
  3. Final Answer:

    To share common code and libraries across multiple Lambda functions -> Option A
  4. Quick Check:

    Lambda layers = shared code [OK]
Quick Trick: Layers share code across functions, not manage memory or logs [OK]
Common Mistakes:
  • Confusing layers with memory settings
  • Thinking layers schedule functions
  • Mixing layers with logging features

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