[Solved] Which syntax correctly describes a serverless function trigger in AWS Lambda? — Ans: "Events": {"S3": {"Bucket": "my-bucket", "Event": "s3:ObjectCreated:*"}} | AWS

AWS - Lambda

Which syntax correctly describes a serverless function trigger in AWS Lambda?

A"Action": {"EBS": {"VolumeId": "vol-0abcd1234efgh5678"}}

B"Trigger": {"EC2": {"InstanceId": "i-1234567890abcdef0"}}

C"Source": {"RDS": {"Database": "mydb"}}

D"Events": {"S3": {"Bucket": "my-bucket", "Event": "s3:ObjectCreated:*"}}

Step-by-Step Solution

Solution:

Step 1: Identify valid AWS Lambda event trigger syntax
Lambda triggers often use event sources like S3 with event types such as ObjectCreated.
Step 2: Check each option for correct event source and syntax
"Events": {"S3": {"Bucket": "my-bucket", "Event": "s3:ObjectCreated:*"}} correctly shows an S3 event trigger; others mention unrelated AWS services not used as Lambda triggers.
Final Answer:
"Events": {"S3": {"Bucket": "my-bucket", "Event": "s3:ObjectCreated:*"}} -> Option D
Quick Check:
Lambda trigger syntax = S3 event format [OK]

Quick Trick: Lambda triggers use event sources like S3 [OK]

Common Mistakes:

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Which syntax correctly describes a serverless function trigger in AWS Lambda?