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Question 182

An application that runs on an Amazon EC2 instance needs to access and make API calls to multiple AWS services.
What is the MOST secure way to provide access to the AWS services with MINIMAL management overhead?

A.Use AWS KMS to store and retrieve credentials.
B.Use EC2 instance profiles.
C.Use AWS root user to make requests to the application.
D.Store and retrieve credentials from AWS CodeCommit.

Question 183

The Lambda function below is being called through an API using Amazon API Gateway. The average execution time for the Lambda function is about 1 second. The pseudocode for the Lambda function is as shown in the exhibit.

What two actions can be taken to improve the performance of this Lambda function without increasing the cost of the solution? (Select two.)

A.Implement local caching of Amazon RDS data so Lambda can re-use the cache
B.Implement custom database connection pooling with the Lambda function
C.Use Amazon DynamoDB instead of Amazon RDS
D.Package only the modules the Lambda function requires
E.Move the initialization of the variable Amazon RDS connection outside of the handler function

Question 184

A developer needs temporary access to resources in a second account
What is the MOST secure way to achieve this?

A.Create a cross-account access role, and use sts:AssumeRcie API to get short-lived credentials
B.Create a dedicated IAM access key for the second account, and send it by mail.
C.Use the Amazon Cognito user pools to get short-lived credentials for the second account
D.Establish trust, and add an SSH key for the second account to the IAM user

Question 185

A.Store and retrieve credentials from AWS CodeCommit.
B.Use EC2 instance profiles.
C.Use AWS root user to make requests to the application.
D.Use AWS KMS to store and retrieve credentials.

Question 186

An application is being developed to audit several AWS accounts. The application will run in Account A and must access AWS services in Accounts B and C.
What is the MOST secure way to allow the application to call AWS services in each audited account?

A.Configure cross-account roles in each audited account. Write code in Account A that assumes those roles
B.Use S3 cross-region replication to communicate among accounts, with Amazon S3 event notifications to trigger Lambda functions
C.Deploy an application in each audited account with its own role. Have Account A authenticate with the application
D.Create an IAM user with an access key in each audited account. Write code in Account A that uses those access keys