EXAMS AWS CERTIFIED DEVELOPER - ASOCIATE 34

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PREGUNTA

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Which header received at the EC2 instance identifies the port used by the client while requesting ELB?

The X-Forwarded-Port request header helps the user identify the port used by the client while sending a request to ELB

PREGUNTA

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An organization has created 10 IAM users.

The organization wants those users to work independently and access AWS.

Which of the below mentioned options is not a possible solution?

PREGUNTA

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You are getting a lot of empty receive requests when using Amazon SQS.

This is making a lot of unnecessary network load on your instances.

What can you do to reduce this load?

PREGUNTA

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A user has created a snapshot of an EBS volume.

Which of the below mentioned usage cases is not possible with respect to a snapshot?

The EBS snapshots are a point in time backup of the volume. It is helpful to move the volume from one AZ to another or launch a new instance. The user can increase the size of the volume but cannot decrease it less than the original snapshot size. http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSSnapshots.html

PREGUNTA

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An organization has created an application which is hosted on the AWS EC2 instance.

The application stores images to S3 when the end user uploads to it.

The organization does not want to store the AWS secure credentials required to access the S3 inside the instance.

Which of the below mentioned options is a possible solution to avoid any security threat?

The AWS IAM role uses temporary security credentials to access AWS services. Once the role is assigned to an instance, it will not need any security credentials to be stored on the instance. http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html

PREGUNTA

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A user has enabled automated backup for an RDS instance. What is the longest duration for which the user can retain the automated backup?

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. The maximum period can be 35 days.

PREGUNTA

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A user has configured ELB with two instances running in separate AZs of the same region?

Which of the below mentioned statements is true?

If a user is running two instances in separate AZs, it will provide HA with ELB since ELB will automatically stop routing the traffic to unhealthy instances and send it to healthy instances only

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If an application is storing hourly log files from thousands of instances from a high traffic web site, which naming scheme would give optimal performance on S3?

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