AWS Set 2

You have a distributed application that periodically computes large calculations across mulitple EC2 instances. The application is also designed to recover gracefully from instance failure. Which of the following would be cost-effective yet not affecting the jobs

What usage of EIP results in a cost being incured

What is the reason for using subnets

Which of the following operators cannot be overloaded?

You have set up an S3 bucket with a number of images in it, which can be accessed by anyone including anonymous users. To accomplish this you create an Amazon S3 bucket policy that specifies a __________ in the principal element. This will allow anyone to access the bucket.

You are required to set up a large data-mining application. Using AWS you decide that the best service for this is Amazon Elastic MapReduce(EMR), which you know uses Hadoop.
Which of the these statements best describes Hadoop?

You are receiving different bills for every user from AWS. Which of these will you use to decode what you are being billed for and how?

You log into IAM on your AWS console and the following message is displayed on the screen, "Delete your root access keys." Why?

You are required to build a simple file-synchronization service for your department. The requirements include:

• Minimum monetary resources must be spent


• Notifications of changes to files must be sent via e-mail



 

Which of these Amazon services will you use for the e-mail solution?

You are setting up your first Amazon Virtual Private Cloud (Amazon VPC) using the VPC wizard in the AWS console.
Which of the following statements is correct?