Answer: B

Explanation:

AWS CIoudFormation gives developers and systems administrators an easy way to create and manage collections of AWS resources. You can now set Read Replicas for your databases with RDS when you create a new C|oudFormation tempIate.You can start using it with the sample template of C|oudFormation.

Reference:

https://s3.amazonaws.com/cloudformation-templates-us-east-1/RDS_MySQL_With_Read_RepIica.tempI

Answer: B

Explanation:

Amazon SNS makes it simple and cost-effective to push to mobile devices, such as iPhone, iPad, Android, Kindle Fire, and internet connected smart devices, as well as pushing to other distributed services. In this case, the user can configure that Cloudwatch sends an alarm on when the threshold is crossed to SNS which will trigger an SMS.

Reference: http://aws.amazon.com/sns/

Answer: A

Explanation:

To understand pricing in DynamoDB, consider the following example. If you create a table and request 10 units of write capacity and 200 units of read capacity of provisioned throughput, you would be charged:

$0.01 + (4 x $0.01) = $0.05 per hour

Reference: http://aws.amazon.com/dynamodb/pricing/

Answer: D

Explanation:

Amazon DynamoDB supports increment and decrement atomic operations.

Reference:        http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/APISummary.html

Answer: C

Explanation:

AWS Elastic Beanstalk is designed to support multiple running environments. As an example you could have one for integration testing, one for pre-production, and one for production, with each environment independently configured and running on its own separate AWS resources.

Reference: https://aws.amazon.com/elasticbeansta|k/faqs/

Answer: B

Explanation:

In Amazon SWF, the coordination logic in a workflow is contained in a software program called a decider. The decider schedules actMty tasks, provides input data to the actMty workers, processes events that  arrive while the workflow is in progress, and ultimately ends (or closes) the workflow when the objective has been completed.

Reference:        http://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dg-intro-to-swf.html

Answer: B 

Explanation:

AWS RDS is a managed database server offered by AWS, which makes it easy to set up, operate, and scale a relational database or structured data in cloud.

Reference:       http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html

Answer: A

Explanation:

When a user is launching an ELB with VPC, he/she has to select the options, such as subnet and security group before selecting the instances part of that subnet.

Reference:

http://docs.aws.amazon.com/EIasticLoadBaIancing/latest/Deve|operGuide/elb-getting-started.htmI

Answer: D

Explanation:

Amazon SQS is engineered to provide "at least once" delivery of all messages in its queues. Although most of the time, each message will be delivered to your application exactly once, you should design your system so that processing a message more than once does not create any errors or inconsistencies. Reference: https://aws.amazon.com/sqs/faqs/

Answer: C

Explanation:

S3 objects stored in the bucket before the user has set the versioning state have a version ID of null. When the user enables versioning, the objects in the bucket do not change and their ID remains null. Reference: http://docs.aws.amazon.com/AmazonS3/latest/dev/AddingObjectstoVersionSuspendedBuckets.htmI