Task 2: Develop Code for AWS Lambda DVA-C02 Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A developer is building a real-time analytics pipeline. Data is ingested into a Kinesis Data Stream. The developer wants to use a Lambda function to transform each record and write the result to a DynamoDB table. What is the correct way to configure the Lambda function?

   • AUse a scheduled CloudWatch Events rule to invoke the Lambda function to poll Kinesis.
   • BConfigure an SQS queue as a trigger and have a separate process push Kinesis records to it.
   • CCreate a DynamoDB trigger for the Lambda function and process the records from the stream.
   • DCreate a Kinesis trigger for the Lambda function and process the records in the event payload.
   Reveal Solution Discussion Select an answer first
2. 22foundation · easy

   A developer is configuring a Lambda function that must access a private Amazon RDS database inside a VPC. Which configuration is required for the Lambda function to reach the database?

   • ACreate a VPC endpoint for Lambda and attach it to the function's execution role.
   • BPlace the Lambda function in the same AWS account as the VPC and enable public DNS resolution.
   • CConfigure the Lambda function with VPC settings that include the subnets and security groups for the VPC.
   • DAttach an internet gateway to the VPC and assign a public IP to the Lambda function.
   Reveal Solution Discussion Select an answer first
4. 23foundation · easy

   A Lambda function needs to access an Amazon S3 bucket without routing traffic through the public internet. The function is already configured to run inside a VPC. What should be used to enable this private connectivity?

   • AA NAT gateway in a public subnet
   • BA VPC endpoint for Amazon S3
   • CAn internet gateway attached to the VPC
   • DA security group allowing outbound HTTPS to S3
   Reveal Solution Discussion Select an answer first
5. 24application · medium

   A developer has an event-driven Lambda function that processes orders. The function is triggered by an SQS queue. When the function fails, the developer wants to capture the failed event payload for later analysis. What is the simplest way to achieve this?

   • AEnable 'Report batch item failures' on the Lambda function.
   • BConfigure a dead-letter queue (DLQ) on the SQS source.
   • CConfigure a Lambda destination of type 'On failure' to an SNS topic.
   • DCreate a second Lambda function that subscribes to the same SQS queue.
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   Which Lambda function setting determines the maximum amount of time a function can run before it is terminated?

   • AConcurrency
   • BTimeout
   • CMemory
   • DRuntime
   Reveal Solution Discussion Select an answer first