Simulation AWS-Certified-Developer-Associate Exam Questions and Answers 2021

NEW QUESTION 1
In relation to Amazon Simple Workflow Service (Amazon SWF),what is an "ActMty Worker"?

• A. An indMdual task undertaken by a workflow
• B. The automation of a business process
• C. A piece of software that implements tasks
• D. All answers listed are correct

Answer: C

Explanation: In relation to Amazon Simple Workflow Service (Amazon SWF), an actMty worker is a program that receives actMty tasks, performs them, and provides results back. Which translates to a piece of software that implements tasks.
Reference: http://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dg-develop-actMty.html

NEW QUESTION 2
Which Amazon service is not used by Elastic Beanstalk?

• A. Amazon S3
• B. Amazon ELB
• C. Auto scaling
• D. Amazon EMR

Answer: D

Explanation: Elastic Beanstalk leverages AWS services such as Amazon Elastic Cloud Compute (Amazon EC2), Amazon Simple Storage Service (Amazon S3), Amazon Simple Notification Service (Amazon SNS), Elastic Load Balancing and Auto Scaling to deliver the same highly reliable, scalable, and cost-effective infrastructure that hundreds of thousands of businesses depend on today.
Reference: http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/NeIcome.html

NEW QUESTION 3
Does AWS CIoudFormation support Amazon EC2 tagging?

• A. It depends if the Amazon EC2 tagging has been defined in the template.
• B. No, it doesn’t support Amazon EC2 tagging.
• C. No, CIoudFormation doesn’t support any tagging
• D. Yes, AWS CIoudFormation supports Amazon EC2 tagging

Answer: D

Explanation: In AWS CIoudFormation, Amazon EC2 resources that support the tagging feature can also be tagged in an AWS template. The tag values can refer to template parameters, other resource names, resource attribute values (e.g. addresses), or values computed by simple functions (e.g., a concatenated list of strings).
Reference: http://aws.amazon.com/c|oudformation/faqs/

NEW QUESTION 4
Which one of the following data types does Amazon DynamoDB not support?

• A. Arrays
• B. String
• C. Binary
• D. Number Set

Answer: A

Explanation: Amazon DynamoDB supports the following data types: Scalar data types (like Number, String, and Binary)
Multi-valued types (like String Set, Number Set, and Binary Set). Reference:
http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModeI.htmI#DataModeI.Data Types

NEW QUESTION 5
Which of the following services are key/value stores? Choose 3 answers

• A. Amazon EIastiCache
• B. Simple Notification Service
• C. DynamoDB
• D. Simple Workflow Service
• E. Simple Storage Service

Answer: ABC

NEW QUESTION 6
Which statements about DynamoDB are true? Choose 2 answers

• A. DynamoDB uses a pessimistic locking model
• B. DynamoDB uses optimistic concurrency control
• C. DynamoDB uses conditional writes for consistency
• D. DynamoDB restricts item access during reads
• E. DynamoDB restricts item access during writes

Answer: BC

NEW QUESTION 7
A user has an S3 object in the US Standard region with the content "coIor=red". The user updates the object with the content as "coIor="white". If the user tries to read the value 1 minute after it was uploaded, what will S3 return?

• A. It will return "coIor=white"
• B. It will return "coIor=red"
• C. It will return an error saying that the object was not found
• D. It may return either "coIor=red" or "color=white" i.
• E. any of the value

Answer: D

Explanation: AWS S3 follows the eventual consistent model in the US Standard Region. Once the object is updated it
may return the new value or the old value based on whether all the content is replicated across multiple servers until it becomes consistent (eventual).
Reference: http://docs.aws.amazon.com/AmazonS3/Iatest/dev/Introduction.htmI

NEW QUESTION 8
A user has set an IAM policy where it allows all requests if a request from IP 10.10.10.1/32. Another policy allows all the requests between 5 PM to 7 PM. What will happen when a user is requesting access from IP 10.10.10.1/32 at 6 PM?

• A. IAM will throw an error for policy conflict
• B. It is not possible to set a policy based on the time or IP
• C. It will deny access
• D. It will allow access

Answer: D

Explanation: With regard to IAM, when a request is made, the AWS service decides whether a given request should be allowed or denied. The evaluation logic follows these rules:
By default, all requests are denied. (In general, requests made using the account credentials for resources in the account are always allowed.)
An explicit allow policy overrides this default. An explicit deny policy overrides any allows. Reference:
http://docs.aws.amazon.com/IAM/latest/UserGuide/AccessPoIicyLanguage_EvaIuationLogic.htmI

NEW QUESTION 9
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

Answer: C

NEW QUESTION 10
A user has created a MySQL RDS instance. Which of the below mentioned options is mandatory to configure while creating an instance?

• A. MuIti AZ deployment setup
• B. Automated backup window
• C. Availability Zone
• D. Maintenance window

Answer: A

Explanation: When creating an RDS instance, the user needs to specify whether it is Nlulti AZ or not. If the user does not provide the value for the zone, the maintenance window or automated backup window, RDS will automatically select the value.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.lV|u|tiAZ.htmI

NEW QUESTION 11
An orgAMzation has created an application which is hosted on the AWS EC2 instance. The application stores images to S3 when the end user uploads to it. The orgAMzation does not want to store the AWS secure credentials required to access the S3 inside the instance. Which of the below mentioned options is a possible solution to avoid any security threat?

• A. Use the IAM role and assign it to the instance.
• B. Since the application is hosted on EC2, it does not need credentials to access S3.
• C. Use the X.509 certificates instead of the access and the secret access keys.
• D. Use the IAM based single sign between the AWS resources and the orgAMzation applicatio

Answer: A

Explanation: The AWS IAM role uses temporary security credentials to access AWS services. Once the role is assigned to an instance, it will not need any security credentials to be stored on the instance. Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html

NEW QUESTION 12
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

Answer: B

Explanation: 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

NEW QUESTION 13
ExamKiIIer (with AWS account ID H1122223333) has created 50 IAM users for its orgAMzation’s employees. ExamKiI|er wants to make the AWS console login URL for all IAM users like: https://examki||er.signin.aws.amazon.com/consoIe/. How can this be configured?

• A. The user needs to use Route 53 to map the examkiller domain and IAM URL
• B. Create an IAM AWS account alias with the name examkiller
• C. It is not possible to have a personalized IAM login URL
• D. Create an IAM hosted zone Identity for the domain examkiller

Answer: B

Explanation: If a user wants the URL of the AWS IAM sign-in page to have a company name instead of the AWS account ID, he can create an alias for his AWS account ID.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/AccountAIias.html

NEW QUESTION 14
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

NEW QUESTION 15
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

NEW QUESTION 16
Which of the following groups is AWS Elastic Beanstalk best suited for?

• A. Those who want to deploy and manage their applications within minutes in the AWS cloud
• B. Those who want to privately store and manage Git repositories in the AWS cloud.
• C. Those who want to automate the deployment of applications to instances and to update the applications as required
• D. Those who want to model, visualize, and automate the steps required to release software

Answer: A

Explanation: AWS Elastic Beanstalk is best suited for those groups who want to deploy and manage their applications within minutes in the AWS cloud. As a bonus, you don’t even need experience with cloud computing to get started.
Reference: https://aws.amazon.com/elasticbeansta|k/faqs/

NEW QUESTION 17
can be used to bootstrap both the Chef Server and Chef Client software on your EC2 instances.

• A. AWS CIoudFormation
• B. AWS Elastic Beanstalk
• C. AWS OpsWorks
• D. Amazon Glacier

Answer: A

Explanation: AWS CIoudFormation can be used to bootstrap both the Chef Server and Chef Client software on your EC2 instances.
Reference: http://aws.amazon.com/c|oudformation/faqs/

NEW QUESTION 18
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