A customer has a machine learning workflow that consists of multiple quick cycles of reads-writes-reads on Amazon S3. The customer needs to run the workflow on EMR but is concerned that the reads in subsequent cycles will miss new data critical to the machine learning from the prior cycles.

How should the customer accomplish this?

A. Turn on EMRFS consistent view when configuring the EMR cluster.

B. Use AWS Data Pipeline to orchestrate the data processing cycles.

C. Set hadoop.data.consistency = true in the core-site.xml file.

D. Set hadoop.s3.consistency = true in the core-site.xml file.

Can I encrypt connections between my application and my DB Instance using SSL?

A. No

B. Yes

C. Only in VPC

D. Only in certain regions

A user has created an ELB with Auto Scaling. Which of the below mentioned offerings from ELB helps the user to stop sending new requests traffic from the load balancer to the EC2 instance when the instance is being deregistered while continuing in-flight requests?

A. ELB sticky session

B. ELB deregistration check

C. ELB connection draining

D. ELB auto registration Off

You have been asked to use your department's existing continuous integration (CI) tool to test a three- tier web architecture defined in an AWS CloudFormation template. The tool already supports AWS APIs and can launch new AWS CloudFormation stacks after polling version control. The CI tool reports on the success of the AWS CloudFormation stack creation by using the DescribeStacks API to look for the CREATE_COMPLETE status.

The architecture tiers defined in the template consist of:

1.

One load balancer

2.

Five Amazon EC2 instances running the web application

3.

One multi-AZ Amazon RDS instance

How would you implement this? Choose 2 answers

A. Define a WaitCondition and a WaitConditionhandle for the output of a output of a UserData command that does sanity checking of the application's post-install state

B. Define a CustomResource and write a script that runs architecture-level integration tests through the load balancer to the application and database for the state of multiple tiers

C. Define a WaitCondition and use a WaitConditionHandle that leverages the AWS SDK to run the DescribeStacks API call until the CREATE_COMPLETE status is returned

D. Define a CustomResource that leverages the AWS SDK to run the DescribeStacks API call until the CREATE_COMPLETE status is returned

E. Define a UserDataHandle for the output of a UserData command that does sanity checking of the application's post-install state and runs integration tests on the state of multiple tiers through load balancer to the application

F. Define a UserDataHandle for the output of a CustomResource that does sanity checking of the application's post-install state

An existing application stores sensitive information on a non-boot Amazon EBS data volume attached to an Amazon Elastic Compute Cloud instance.

Which of the following approaches would protect the sensitive data on an Amazon EBS volume?

A. Snapshot the current Amazon EBS volume. Restore the snapshot to a new, encrypted Amazon EBS volume Mount the Amazon EBS volume

B. Create and mount a new, encrypted Amazon EBS volume. Move the data to the new volume.

Delete the old Amazon EBS volume

C. Unmount the EBS volume. Toggle the encryption attribute to True. Re-mount the Amazon EBs volume

D. Upload your customer keys to AWS CloudHSM. Associate the Amazon EBS volume with AWS CloudHSM. Re-mount the Amazon EBS volume