Question 1

A Developer is trying to make API calls using AWS SDK. The IAM user credentials used by the application require multi-factor authentication for all API calls.

Which method should the Developer use to access the multi-factor authentication protected API?

Options :

A : GetSessionToken

B : GetCallerIdentity

C : DecodeAuthorizationMessage

D : GetFederationToken

Answer: A

Question 2

A developer deployed an application to an Amazon EC2 instance The application needs to know the public IPv4 address of the instance How can the application find this information?

Options :

A : Query the instance metadata from http./M69.254.169.254. latestmeta-data/.

B : Query the instance user data from http '169 254.169 254. latest/user-data/

C :

Query the Amazon Machine Image (AMI) information from http://169.254.169.254/latest/meta-data/ami/.

D : Check the hosts file of the operating system

Answer: A

Question 3

A team of Developers are working on a shared project and need to be able to collaborate on code. The shared application code must be encrypted at rest, stored on a highly available and durable architecture, and support multiple versions and batch change tracking.

Which AWS service should the Developer use?

Options :

A : AWS Cloud9

B : AWS CodeBuild

C : Amazon S3

D : AWS CodeCommit

Answer: D

Question 4

An application runs on a fleet of Amazon EC2 instances in an Auto Scaling group. The application stores data in an Amazon DynamoDB table and all instances make updates to the table. When querying data, EC2 instances sometimes retrieve stale data. The Developer needs to update the application to ensure the most up-to-date data is retrieved for all queries.

How can the Developer accomplish this?

Options :

A :

Cache the database writes using Amazon DynamoDB Accelerator.

B : Use the TransactWriteItems API when issuing PutItem actions.

C : Use the UpdateGlobalTable API to create a global secondary index.

D : Set the ConsistentRead parameter to true when calling GetItem.

Answer: D

Question 5

A company has an application that runs as a series of AWS Lambda functions. Each Lambda function receives data from an Amazon Simple Notification Service (Amazon SNS) topic and writes the data to an Amazon Aurora DB instance.

To comply with an information security policy, the company must ensure that the Lambda functions all use a single securely encrypted database connection string to access Aurora.

Which solution will meet these requirements?

Options :

A : Use IAM database authentication for Aurora to enable secure database connections for all the Lambda functions.

B : Store the credentials and read the credentials from an encrypted Amazon RDS DB instance.

C : Store the credentials in AWS Systems Manager Parameter Store as a secure string parameter.

D : Use Lambda environment variables with a shared AWS Key Management Service (AWS KMS) key for encryption.

Answer: A