EXAMS AWS CERTIFIED DEVELOPER - ASOCIATE 29

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A user has launched a MySQL RDS. The user wants to plan for the DR and automate the snapshot. Which of the below mentioned functionality offers this option with RDS?

Amazon RDS provides two different methods for backing up and restoring the Amazon DB instances: automated backups and DB snapshots. Automated backups automatically back up the DB instance during a specific, user-definable backup window, and keep the backups for a limited, user-specified period of time.

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A user is trying to create a policy for an IAM user from the AWS console.

Which of the below mentioned options is not available to the user while configuring policy?

When a user is trying to create a policy from the AWS console, it will have options such as create policy from templates or use a policy generator. The user can also define a custom policy or chose the option to have no permission. The policy simulator is not available in the console. http://docs.aws.amazon.com/IAM/latest/UserGuide/IAMBestPractices.html

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Which of the below mentioned options is a must to have an element as a part of the IAM policy?

The statement is the main element of the IAM policy and it is a must for a policy. Elements such as condition, version and ID are not required. http://docs.aws.amazon.com/IAM/latest/UserGuide/AccessPolicyLanguage_ElementDescriptions. html

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When AutoScaling is launching a new instance based on condition, which of the below mentioned policies will it follow?

AutoScaling attempts to distribute instances evenly between the Availability Zones that are enabled for the user's AutoScaling group. Auto Scaling does this by attempting to launch new instances in the Availability Zone with the fewest instances. http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/AS_Concepts.html

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How long are the messages kept on an SQS queue by default?

The SQS message retention period is configurable and can be set anywhere from 1 minute to 2 weeks. The default is 4 days and once the message retention limit is reached your messages will be automatically deleted. The option for longer message retention provides greater flexibility to allow for longer intervals between message production and consumption. https://aws.amazon.com/sqs/faqs/

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Which OS does the current version of AWS Elastic Beanstalk use?

The current version of AWS Elastic Beanstalk uses the Amazon Linux AMI or the Windows Server 2008 R2 AMI. https://aws.amazon.com/elasticbeanstalk/faqs/

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Company B provides an online image recognition service and utilizes SOS to decouple system components for scalability The SQS consumers poll the imaging queue as often as possible to keep end-to-end throughput as high as possible. However, Company B is realizing that polling in tight loops is burning CPU cycles and increasing costs with empty responses.

How can Company B reduce the number of empty responses?

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A user is launching an instance with EC2. Which of the below mentioned options does the user need to consider before launching an instance?

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