EXAMS AWS CERTIFIED DEVELOPER - ASOCIATE 3

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After launching an instance that you intend to serve as a NAT (Network Address Translation) device in a public subnet you modify your route tables to have the NAT device be the target of internet bound traffic of your private subnet.

When you try and make an outbound connection to the Internet from an instance in the private subnet, you are not successful.

Which of the following steps could resolve the issue?

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An organization has hosted an application on the EC2 instances.

There will be multiple users connecting to the instance for setup and configuration of application.

The organization is planning to implement certain security best practices.

Which of the below mentioned pointers will not help the organization achieve better security arrangement?

Since AWS is a public cloud any application hosted on EC2 is prone to hacker attacks. It becomes extremely important for a user to setup a proper security mechanism on the EC2 instances. A few of the security measures are listed below: Always keep the OS updated with the latest patch Always create separate users with in OS if they need to connect with the EC2 instances, create their keys and disable their password Create a procedure using which the admin can revoke the access of the user when the business work on the EC2 instance is completed Lock down unnecessary ports Audit any proprietary applications that the user may be running on the EC2 instance Provide temporary escalated privileges, such as sudo for users who need to perform occasional privileged tasks The IAM is useful when users are required to work with AWS resources and actions, such as launching an instance. It is not useful to connect (RDP / SSH) with an instance. http://aws.amazon.com/articles/1233/

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You need to migrate 10 million records in one hour into DynamoDB.

All records are 1.5KB in size.

The data is evenly distributed across the partition key.

How many write capacity units should you provision during this batch load?

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When should a user try to Force Detach an EBS volume?

If an EBS volume stays in the detaching state, the user can force the detachment by clicking Force Detach. Forcing the detachment can lead to either data loss or a corrupted file system. The user should use this option only as a last resort to detach a volume from a failed instance or if he is detaching a volume with the intention of deleting it. http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-detaching-volume.html

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What is the maximum size for messages stored in SQS?

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A user is having access to objects of an S3 bucket which is not owned by him.

If he is trying to set the objects of that bucket public, which of the below mentioned options may be a right fit for this action?

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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?

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. http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingRRS.html

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AWS Elastic Load Balancer supports SSL termination.

You can configure your load balancer in ELB (Elastic Load Balancing) to use a SSL certificate in order to improve your system security.The load balancer uses the certificate to terminate and then decrypt requests before sending them to the back-end instances. Elastic Load Balancing uses AWS Identity and Access Management (IAM) to upload your certificate to your load balancer.

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