Use the same access key in all applications for

Use the same access key in all applications for consistency.
B.
Delete all access keys for the account root user.
Amazon AWS Certified Developer Associate Exam
"Pass Any Exam. Any Time." - 57

C.
Leave unused access keys in the account for tracking purposes.
D.
Embed and encrypt access keys in code for continuous deployment.
E.
Use Amazon IAM roles instead of access keys where possible.
Answer: B,E
Reference: -
practices.html#iam-user-access-keys
QUESTION NO: 93
The development team is working on an API that will be served from Amazon API gateway. The
API will be served from three environments: development, test, and production. The API Gateway
is configured to use 237 GB of cache in all three stages.
Which is the MOST cost-efficient deployment strategy?
A.
Create a single API Gateway with all three stages.
B.
Create three API Gateways, one for each stage in a single AWS account.
C.
Create an API Gateway in three separate AWS accounts.
D.
Enable the cache for development and test environments only when needed.
Answer: D
Explanation:
QUESTION NO: 94
An application running on an Amazon Linux EC2 instance needs to manage the AWS
infrastructure.
Amazon AWS Certified Developer Associate Exam
"Pass Any Exam. Any Time." - 58

How can the EC2 instance be configured to make AWS API calls securely?
A.
Sign the AWS CLI command using the signature version 4 process.
B.
Run the aws configure AWS CLI command and specify the access key id and secret access key.
C.
Specify a role for the EC2 instance with the necessary privileges.
D.
Pass the access key id and secret access key as parameters for each AWS CLI command.
Answer: C
Explanation:
QUESTION NO: 95
A company is migrating from a monolithic architecture to a microservices-based architecture. The
Developers need to refactor the application so that the many microservices can asynchronously
communicate with each other without impacting performance.
Use of which managed AWS services will enable asynchronous message passing? (Choose two.)
A.
Amazon SQS
B.
Amazon Cognito
C.
Amazon Kinesis
D.
Amazon SNS
E.
Amazon ElastiCache
Answer: A,D
Explanation:
Amazon AWS Certified Developer Associate Exam
"Pass Any Exam. Any Time." - 59

QUESTION NO: 96
An application runs on multiple EC2 instances behind an ELB.
Where is the session data best written so that it can be served reliably across multiple requests?
A.
Write data to Amazon ElastiCache
B.
Write data to Amazon Elastic Block Store.
C.
Write data to Amazon EC2 Instance Store.
D.
Write data to the root filesystem.
Answer: A
Reference: -
aws/microservices-on-aws.pdf?icmpid=link_from_whitepapers_page (14)
QUESTION NO: 97
A Developer is creating a Lambda function that will generate and export a file. The function
requires 100 MB of temporary storage for temporary files while executing. These files will not be
needed after the function is complete.