AWS-Certified-Developer-Associate Free Practice Test

What type of block cipher does Amazon S3 offer for server side encryption?

1. A. Triple DES
2. B. Advanced Encryption Standard
3. C. Blowfish
4. D. RC5

Correct Answer: B

AWS Elastic Beanstalk will change the health status of a web server environment tier to gray color when:

1. A. AWS Elastic Beanstalk detects other problems with the environment that are known to make the application unavailable
2. B. Your application hasn't responded to the application health check URL within the last one hour.
3. C. Your application hasn't responded to the application health check URL within the last five minutes.
4. D. Your appIication's health status is unknown because status is reported when the application is not in the ready state.

Correct Answer: D
AWS Elastic Beanstalk will change the health status of a web server environment tier to gray color when your appIication's health status is unknown (because status is reported when the application is not in the ready state).
Reference: http://docs.aws.amazon.com/elasticbeanstaIk/latest/dg/using-features.heaIthstatus.htmI

A user has developed an application which is required to send the data to a NoSQL database. The user wants to decouple the data sending such that the application keeps processing and sending data but
does not wait for an acknowledgement of DB. Which of the below mentioned applications helps in this scenario?

1. A. AWS Simple Notification Service
2. B. AWS Simple Workflow
3. C. AWS Simple Query Service
4. D. AWS Simple Queue Service

Correct Answer: D
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. In this case, the user can use AWS SQS to send messages which are received from an application and sent to DB. The application can continue processing data without waiting for any acknowledgement from DB. The user can use SQS to transmit any volume of data without losing messages or requiring other services to always be available.
Reference: http://aws.amazon.com/sqs/

A user has configured an automated backup between 5 AM — 5:30 AM for the MySQL RDS DB. Will the performance of RDS get frozen momentarily during a backup?

1. A. No
2. B. Yes, only if the instance size is smaller than large size
3. C. Yes, provided it is a single zone implementation
4. D. Yes, always

Correct Answer: C
Amazon RDS provides two different methods for backing up and restoring the Amazon DB instances. A brief I/O freeze, typically lasting a few seconds, occurs during both automated backups and DB snapshot operations on Single-AZ DB instances.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAmazonR DSInstances.htmI

Which EC2 API call would you use to retrieve a list of Amazon Machine Images (AMIs)?

1. A. Descnbelnstances
2. B. DescribeAMIs
3. C. Describelmages
4. D. GetAMIs
5. E. You cannot retrieve a list of AMIs as there are over 10,000 AMIs

Correct Answer: E