[2021-New] Amazon AWS-Certified-Developer-Associate Dumps With Update Exam Questions (81-90)

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Q1. A user is planning to create a structured database in the cloud. Which of the below mentioned AWS offerings help the user achieve the goal?

A. AWS DynamoDB

B. AWS RDS

C. AWS Simp|eDB

D. AWS RSD

Answer: B

Explanation:

AWS RDS is a managed database server offered by AWS, which makes it easy to set up, operate, and scale a relational database or structured data in cloud.

Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html

Q2. Your manager has requested you to tag EC2 instances to orgAMze and manage a load balancer. Which of the following statements about tag restrictions is incorrect?

A. The maximum key length is 127 Unicode characters.

B. The maximum value length is 255 Unicode characters.

C. Tag keys and values are case sensitive.

D. The maximum number of tags per load balancer is 20.

Answer: D

Explanation:

Tags help you to categorize your load balancers in different ways, for example, by purpose, owner, or environment. The following basic restrictions apply to tags: The maximum number of tags per resource is

10. The maximum key length is 127 Unicode characters. The maximum value length that can be used is 255 Unicode characters. The tag keys and values are case sensitive. Allowed characters are letters, spaces, and numbers representable in UTF-8, plus the following special characters: + - =. _ : / @. Do not use leading or trailing spaces. Do not use the aws: prefix in your tag names or values because it is reserved for AWS use. You can't edit or delete tag names or values with this prefix. Tags with this prefix do not count against your tags per resource limit.

Reference:

http://docs.aws.amazon.com/EIasticLoadBaIancing/latest/DeveIoperGuide/add-remove-tags.htmI#tag-res trictions

Q3. In AWS Elastic Beanstalk, if the application returns any response other than 200 ,OK or there is no response within the configured InactMtyTimeout period, .

A. SQS once again makes the message visible in the queue and available for another attempt at processing

B. SQS waits for another timeout

C. SQS run DeIeteMessagecaII and deletes the message from the queue

D. SQS sends a message to the application with the lVIessageID and pending status

Answer: A

Explanation:

In AWS Elastic Beanstalk, if the application returns any response other than 200, OK or there is no response within the configured InactMtyTimeout period, SQS once again makes the message visible in the queue and available for another attempt at processing.

Reference:

http://docs.aws.amazon.com/elasticbeanstaIk/latest/dg/using-features-managing-env-tiers.htmI#worker-e nviron

Q4. A user has created a queue named "myqueue" with SQS. There are four messages published to queue which are not received by the consumer yet. If the user tries to delete the queue, what will happen?

A. A user can never delete a queue manually. AWS deletes it after 30 days of inactMty on queue

B. It will initiate the delete but wait for four days before deleting until all messages are deleted automatically.

C. It will ask user to delete the messages first

D. It will delete the queue

Answer: D

Explanation:

SQS allows the user to move data between distributed components of applications so they can perform different tasks without losing messages or requiring each component to be always available. The user can delete a queue at any time, whether it is empty or not. It is important to note that queues retain

messages for a set period of time. By default, a queue retains messages for four days. Reference:

http://docs.aws.amazon.com/AWSSimpIeQueueService/latest/SQSDeveIoperGuide/SQSConcepts.html

Q5. A user has created a MySQL RDS instance with PIOPS. Which of the below mentioned statements will help user understand the advantage of PIOPS?

A. The user can achieve additional dedicated capacity for the EBS I/O with an enhanced RDS option

B. It uses optimized EBS volumes and optimized configuration stacks

C. It provides a dedicated network bandwidth between EBS and RDS

D. It uses a standard EBS volume with optimized configuration the stacks

Answer: B

Explanation:

RDS DB instance storage comes in two types: standard and provisioned IOPS. Standard storage is allocated on the Amazon EBS volumes and connected to the user’s DB instance. Provisioned IOPS uses optimized EBS volumes and an optimized configuration stack. It provides additional, dedicated capacity for the EBS I/O.

Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html

Q6. True or False: In DynamoDB, Scan operations are always eventually consistent.

A. No, scan is like Query operation

B. Yes

C. No, scan is strongly consistent by default

D. No, you can optionally request strongly consistent scan.

Answer: B

Explanation:

In DynamoDB, Scan operations are always eventually consistent.

Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/APISummary.htmI

Q7. Regarding Amazon SWF, the coordination logic in a workflow is contained in a software program called a

A. Handler

B. Decider

C. Cordinator

D. Worker

Answer: B

Explanation:

In Amazon SWF, the coordination logic in a workflow is contained in a software program called a decider. The decider schedules actMty tasks, provides input data to the actMty workers, processes events that arrive while the workflow is in progress, and ultimately ends (or closes) the workflow when the objective has been completed.

Reference: http://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dg-intro-to-swf.html

Q8. A user wants to configure AutoScaIing which scales up when the CPU utilization is above 70% and scales down when the CPU utilization is below 30%. How can the user configure AutoScaIing for the above mentioned condition?

A. Use AutoScaIing with a schedule

B. Configure ELB to notify AutoScaIing on load increase or decrease

C. Use dynamic AutoScaIing with a policy

D. Use AutoScaIing by manually modifying the desired capacity during a condition

Answer: C

Explanation:

The user can configure the AutoScaIing group to automatically scale up and then scale down based on the specified conditions. To configure this, the user must setup policies which will get triggered by the C|oudWatch alarms.

Reference:

http://docs.aws.amazon.com/AutoScaling/latest/DeveIoperGuide/as-scaIe-based-on-demand.html

Q9. A user has enabled the automated backup, but not specified the backup window. What will RDS do in this case?

A. Will throw an error on instance launch

B. RDS will take 3 AM — 3:30 AM as the default window

C. RDS assigns a random time period based on the region

D. Will not allow to launch a DB instance

Answer: C

Explanation:

If the user does not specify a preferred backup window while enabling an automated backup, Amazon RDS assigns a default 30-minute backup window which is selected at random from an 8-hour block of

time per region. Reference:

http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAmazonR DSInstances.htmI

Q10. The user has created multiple AutoScaIing groups. The user is trying to create a new AS group but it fails. How can the user know that he has reached the AS group limit specified by AutoScaIing in that region?

A. Run the command: as-describe-account-limits

B. Run the command: as-describe-group-limits

C. Run the command: as-max-account-limits

D. Run the command: as-list-account-limits

Answer: A

Explanation:

A user can see the number of AutoScaIing resources currently allowed for the AWS account either by using the as-describe-account-Iimits command or by calling the DescribeAccountLimits action. Reference:http://docs.aws.amazon.com/AutoScaIing/latest/DeveIoperGuide/ts-as-capacity.html