DVA-C01 Amazon-Web-Services Exam Questions and Free Practice Test

Question 7

The AWS console for DynamoDB enables you to do all the following operations, except:

A. Set up alarms to monitor your tabIe's capacity usage.

B. Create, update, and delete tables.

C. Import Data from other databases or from files.

D. View your tabIe's top monitoring metrics on real-time graphs from CIoudWatc

Correct Answer:C
The AWS console for DynamoDB enables you to do all the above operation but not Importing Data from other databases or from files and it is not possible to do it.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/ConsoIeDynamoDB.html

Question 8

In regard to DynamoDB, can I modify the index once it is created?

A. Yes, if it is a primary hash key index

B. Yes, if it is a Global secondary index

C. No

D. Yes, if it is a local secondary index

Correct Answer:C
Currently, in DynamoDB, an index cannot be modified once it is created. Reference: http://aws.amazon.com/dynamodb/faqs/#security_anchor

Question 9

A user plans to use RDS as a managed DB platform. Which of the below mentioned features is not supported by RDS?

A. Automated backup

B. Automated scaling to manage a higher load

C. Automated failure detection and recovery

D. Automated software patching

Correct Answer:B
AWS RDS provides a managed DB platform, which offers features, such as automated backup, patch management, automated failure detection and recovery. The scaling is not automated and the user needs to plan it with a few clicks.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html

Question 10

When AutoScaIing is launching a new instance based on condition, which of the below mentioned policies will it follow?

A. Based on the criteria defined with cross zone Load balancing

B. Launch an instance which has the highest load distribution

C. Launch an instance in the AZ with the fewest instances

D. Launch an instance in the AZ which has the highest instances

Correct Answer:C
AutoScaIing attempts to distribute instances evenly between the Availability Zones that are enabled for the user’s AutoScaIing group. Auto Scaling does this by attempting to launch new instances in the Availability Zone with the fewest instances.
Reference:http://docs.aws.amazon.com/AutoScaIing/latest/Deve|operGuide/AS_Concepts.htmI

Question 11

What item operation allows the retrieval of multiple items from a DynamoDB table in a single API call?

A. Getltem

B. BatchGetItem

C. GetMu|tip|e|tems

D. GetItemRange

Correct Answer:B

Question 12

Which of the following are correct statements with policy evaluation logic in AWS Identity and Access Management? Choose 2 answers

A. By default, all requests are denied

B. An explicit allow overrides an explicit deny

C. An explicit allow overrides default deny.

D. An explicit deny does not override an explicit allow

E. By default, all request are allowed

Correct Answer:AC

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