Free AWS-Certified-Developer-Associate Exam Dumps

Question 31

A user has created photo editing software and hosted it on EC2. The software accepts requests from the user about the photo format and resolution and sends a message to S3 to enhance the picture accordingly. Which of the below mentioned AWS services will help make a scalable software with the AWS infrastructure in this scenario?

A. AWS Elastic Transcoder
B. AWS Simple Notification Service
C. AWS Simple Queue Service
D. AWS Glacier

Correct Answer:C
Amazon Simple Queue Service (SQS) is a fast, reliable, scalable, and fully managed message queuing service. SQS provides a simple and cost-effective way to decouple the components of an application. The user can configure SQS, which will decouple the call between the EC2 application and S3. Thus, the application does not keep waiting for S3 to provide the data.
Reference: http://aws.amazon.com/sqs/faqs/

Question 32

Which of the following services are key/value stores? Choose 3 answers

A. Amazon EIastiCache
B. Simple Notification Service
C. DynamoDB
D. Simple Workflow Service
E. Simple Storage Service

Correct Answer:ABC

Question 33

An orgAMzation has created 10 IAM users. The orgAMzation wants those users to work independently and access AWS. Which of the below mentioned options is not a possible solution?

A. Create the access key and secret access key for each user and provide access to AWS using the console
B. Create the X.509 certificate for each user and provide them access to AWS CLI
C. Enable MFA for each IAM user and assign them the virtual MFA device to access the console
D. Provide each user with the IAM login and password for the AWS console

Correct Answer:A
If an orgAMzation has created the IAM users, the users can access AWS services either with an IAM specific login/password or console. The orgAMzation can generate the IAM X.509 certificates to access AWS with CLI. The orgAMzation can also enable MFA for each IAM user, which allows an added security for each IAM user. If the orgAMzation has created the access key and secret key than the user cannot access the console using those keys. Access key and secret access key are useful for CLI or
Webservices.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/IAM_Introduction.htm|

Question 34

Which statements about DynamoDB are true? Choose 2 answers

A. DynamoDB uses a pessimistic locking model
B. DynamoDB uses optimistic concurrency control
C. DynamoDB uses conditional writes for consistency
D. DynamoDB restricts item access during reads
E. DynamoDB restricts item access during writes

Correct Answer:BC

Question 35

A user is trying to share a video file with all his friends. Which of the below mentioned AWS services will be cheapest and easy to use?

A. AWS S3
B. AWS EC2
C. AWS RRS
D. AWS Glacier

Correct Answer:C
AWS RRS provides the same functionality as AWS S3, but at a cheaper rate. It is ideally suited for non mission critical applications. It provides less durability than S3, but is a cheaper option.
Reference: http://docs.aws.amazon.com/AmazonS3/Iatest/dev/UsingRRS.htmI