A Lambda function has reserved concurrency set to 4. If 6 invocation requests arrive simultaneously, what will happen?

medium📝 Predict Output Q4 of 15

AWS - Lambda

A4 requests execute concurrently; 2 requests are throttled and receive errors

BAll 6 requests execute concurrently without throttling

C2 requests queue until others finish, then execute sequentially

DOnly 1 request executes; the rest are dropped silently

Step-by-Step Solution

Solution:

Step 1: Understand reserved concurrency
Reserved concurrency limits the maximum concurrent executions for the function.
Step 2: Analyze the scenario
With reserved concurrency set to 4, only 4 requests can run simultaneously.
Step 3: Outcome for excess requests
The extra 2 requests beyond the limit are throttled and receive errors immediately.
Final Answer:
4 requests execute concurrently; 2 requests are throttled and receive errors -> Option A
Quick Check:
Reserved concurrency caps concurrent executions; excess are throttled [OK]

Quick Trick: Requests beyond reserved concurrency are throttled immediately [OK]

Common Mistakes:

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