AWS-Certified-Developer-Associate Free Practice Test

- (Exam Topic 2)
A Development team wants to instrument their code to provide more detailed information to AWS X-Ray than simple outgoing and incoming requests. This will generate large amounts of data, so the Development team wants to implement indexing so they can filter the data.
What should the Development team do to achieve this?

1. A. Add annotations to the segment document and the code
2. B. Add metadata to the segment document and the code
3. C. Configure the necessary X-Ray environment variables
4. D. Install required plugins for the appropriate AWS SDK

Correct Answer: A
https://docs.aws.amazon.com/xray/latest/devguide/xray-sdk-python-segment.html https://docs.aws.amazon.com/xray/latest/devguide/xray-concepts.html#xray-concepts-annotations

- (Exam Topic 3)
A developer has created an AWS Lambda function that is written in Python The Lambda function reads data from objects in Amazon S3 and writes data to an Amazon DynamoDB table
The function is successfully invoked from an S3 event notification when an object is created However, the function fails when if attempts to write to the DynamoDB table
What is the MOST likely cause of this issue?

1. A. The Lambda function's concurrency limit has been exceeded
2. B. The DynamoDB table requires a global secondary index (GSI) to support writes.
3. C. The Lambda function does not have 1AM permissions to write to DynamoDB ID.
4. D. The DynamoDB table is not running in the same Availability Zone as the Lambda function.

Correct Answer: C

- (Exam Topic 1)
Which of the following are valid arguments for an SNS Publish request? Choose 3 answers

1. A. TopicAm
2. B. Subject
3. C. Destination
4. D. Format
5. E. Message
6. F. Language

Correct Answer: ABE
https://docs.aws.amazon.com/sns/latest/api/API_Publish.html Message
MessageAttributes MessageStructure PhoneNumber Subject
TargetArn TopicArn

- (Exam Topic 2)
An application running on Amazon EC2 opens connections to an Amazon RDS SQL Server database The developer does not want to store the user name and password for the database in the code. The developer would also like to automatically rotate the credentials.
What is the MOST secure way to store and access the database credentials?

1. A. Create an IAM role that has permissions to access the database Attach the role to the EC2 instance
2. B. Use AWS Secrets Manager to store the credential
3. C. Retrieve the credentials from Secrets Manager as needed
4. D. Store the credentials in an encrypted text file in an Amazon S3 bucket Configure the EC2 instance's user data to download the credentials from Amazon S3 as the instance boots
5. E. Store the user name and password credentials directly in the source cod
6. F. No further action is needed because the source code is stored in a private repository.

Correct Answer: B

- (Exam Topic 2)
A development team is working on a mobile app that allows users to upload pictures to Amazon S3 The team expects the app will be used by hundreds of thousands of users during a single event simultaneously Once the pictures are uploaded, the backend service will scan and parse the pictures for inappropriate content.
Which approach is the MOST resilient way to achieve this goal which also smooths out temporary volume spikes for the backend service?

1. A. Develop an AWS Lambda function to check the upload folder in the S3 bucke
2. B. If new uploaded pictures are detected, the Lambda function will scan and parse them
3. C. Once a picture is uploaded to Amazon S3: publish the event to an Amazon SQS queu
4. D. Use the queue as an event source to trigger an AWS Lambda function In the Lambda function scan and parse the picture.
5. E. When the user uploads a picture, invoke an API hosted in Amazon API Gatewa
6. F. The API will invoke an AWS Lambda function to scan and parse the picture
7. G. Create a state machine in AWS Step Functions to check the upload folder in the S3 bucke
8. H. If a new picture is detected, invoke an AWS Lambda function to scan and parse it.

Correct Answer: B