[Solved] What will happen if you create a CloudWatch Events rule with this target configuration?{"Arn": "arn:aws:lambda:us-east-1:123456789012:function:ProcessEvent", "Id":... | AWS

AWS - CloudWatch

What will happen if you create a CloudWatch Events rule with this target configuration?

{"Arn": "arn:aws:lambda:us-east-1:123456789012:function:ProcessEvent", "Id": "Target1"}

Assuming the rule matches an event, what occurs?

ANothing happens unless the Lambda function is manually triggered

BThe Lambda function ProcessEvent is invoked with the event data

CThe Lambda function is created automatically

DThe event is stored in the Lambda function's logs only

Step-by-Step Solution

Solution:

Step 1: Understand target configuration in EventBridge
The target ARN points to a Lambda function, so the rule triggers that function when matched.
Step 2: Confirm behavior on event match
EventBridge invokes the Lambda function with the event data automatically.
Final Answer:
The Lambda function ProcessEvent is invoked with the event data -> Option B
Quick Check:
EventBridge triggers Lambda invocation automatically [OK]

Quick Trick: EventBridge triggers Lambda, it does not create or wait for manual trigger [OK]

Common Mistakes:

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What will happen if you create a CloudWatch Events rule with this target configuration?