AWS Developer Services Quiz

Which AWS service provides a fully managed NoSQL database?

• Amazon Aurora

• Amazon DynamoDB

• Amazon Redshift

• Amazon Neptune

What is the default event source for an AWS Lambda function connected to S3?

• Object deletion

• Object creation

• Bucket policy

• ACL changes

Which AWS service helps developers store and retrieve secrets securely?

• IAM

• AWS Secrets Manager

• AWS Systems Manager Parameter Store

• AWS KMS

Your Lambda function is failing due to "ResourceInitializationError" when connecting to an RDS database inside a VPC. What is the MOST likely cause?

• IAM role missing permissions

• Lambda function not assigned to correct VPC/subnets

• Database password is wrong

• RDS database version mismatch

An application uploads large video files (1GB+) to S3. To optimize performance and reliability, what feature should you use?

• Transfer Acceleration

• Multipart Upload

• Lifecycle Policies

• Versioning

Your application publishes messages to Amazon SNS, but some messages are lost. To guarantee delivery, what should you do?

• Switch to SQS FIFO queues

• Enable CloudTrail

• Use API Gateway retries

• Increase Lambda memory

A developer wants to store session state for a high-traffic web app. Which service provides low-latency key-value store with TTL support?

• RDS MySQL

• DynamoDB

• ElastiCache (Redis)

• S3

Which AWS service allows storing application logs for analysis?

• Amazon S3

• Amazon CloudWatch Logs

• AWS X-Ray

• Amazon Athena

Which of these databases is not serverless?

• DynamoDB

• Aurora Serverless

• RDS for MySQL

• Keyspaces

How can you deploy applications with zero downtime?

• Canary or Blue/Green deployment

• Stop and restart the server

• Manual upload of code

• Changing IAM roles