AWS-Certified-Developer-Associate Amazon Exam Questions and Free Practice Test

Question 25

Which of the following device names is reserved for the root device for Linux instances of Amazon EC2?

A. /dev/sda1

B. /dev/sd[b-e]

C. xvd[a-e]

D. /dev/sd[f-p][1 -6]

Correct Answer:A
/dev/sda1 is the name of the device reserved for the root device for Linux instances. Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/device_naming.htmI

Question 26

You are writing to a DynamoDB table and receive the following exception:" ProvisionedThroughputExceededException". though according to your Cloudwatch metrics for the table, you are not exceeding your provisioned throughput.
What could be an explanation for this?

A. You haven't provisioned enough DynamoDB storage instances

B. You're exceeding your capacity on a particular Range Key

C. You're exceeding your capacity on a particular Hash Key

D. You're exceeding your capacity on a particular Sort Key

E. You haven't configured DynamoDB Auto Scaling triggers

Correct Answer:C

Question 27

Which of the following services are included at no additional cost with the use of the AWS platform? Choose 2 answers

A. Simple Storage Service

B. Elastic Compute Cloud

C. Auto Scaling

D. Elastic Load Balancing

E. CIoudFormation

F. Simple Workflow Service

Correct Answer:CE

Question 28

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

A. If the volume is stuck in a detaching state

B. If the volume is not accessible from the instance

C. If the volume is not unmounted and the user still wants to detach

D. If the volume is a root volume

Correct Answer:A
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.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-detaching-volume.html

Question 29

Which of the below mentioned options can be a good use case for storing content in AWS RRS?

A. Storing mission critical data Files

B. Storing infrequently used log files

C. Storing a video file which is not reproducible

D. Storing image thumbnails

Correct Answer:D
AWS RRS provides the same functionality as AWS S3, but at a cheaper rate. It is ideally suited for non-mission, critical applications, such as files which can be reproduced.
Reference: http://docs.aws.amazon.com/AmazonS3/Iatest/dev/UsingRRS.htmI

Question 30

A meteorological system monitors 600 temperature gauges, obtaining temperature samples every minute and saving each sample to a DynamoDB table. Each sample involves writing 1K of data and the writes are evenly distributed over time.
How much write throughput is required for the target table?

A. 1 write capacity unit

B. 10 write capacity units

C. 60 write capacity units

D. 600 write capacity units

E. 3600 write capacity units

Correct Answer:B

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