Download AWS-Certified-Developer-Associate Exam Dumps 2021

NEW QUESTION 1
In relation to Amazon SQS, how many queues and messages can you have per queue for each user?

• A. Unlimited
• B. 10
• C. 256
• D. 500

Answer: A

Explanation: Amazon SQS supports an unlimited number of queues and unlimited number of messages per queue for each user. Please be aware that Amazon SQS automatically deletes messages that have been in the queue for more than 4 days.
Reference: https://aws.amazon.com/items/1343?externaIID=1343

NEW QUESTION 2
A user is trying to share a video file with all his friends. Which of the below mentioned AWS services will be cheapest and easy to use?

• A. AWS S3
• B. AWS EC2
• C. AWS RRS
• D. AWS Glacier

Answer: C

Explanation: AWS RRS provides the same functionality as AWS S3, but at a cheaper rate. It is ideally suited for non mission critical applications. It provides less durability than S3, but is a cheaper option.
Reference: http://docs.aws.amazon.com/AmazonS3/Iatest/dev/UsingRRS.htmI

NEW QUESTION 3
A bucket owner has allowed another account’s IAM users to upload or access objects in his bucket. The IAM user of Account A is trying to access an object created by the IAM user of account B. What will happen in this scenario?

• A. The bucket policy may not be created as S3 will give error due to conflict of Access Rights
• B. It is not possible to give permission to multiple IAM users
• C. AWS S3 will verify proper rights given by the owner of Account A, the bucket owner as well as by the IAM user B to the object
• D. It is not possible that the IAM user of one account accesses objects of the other IAM user

Answer: C

Explanation: If a IAM user is trying to perform some action on an object belonging to another AWS user’s bucket, S3 will verify whether the owner of the IAM user has given sufficient permission to him. It also verifies the policy for the bucket as well as the policy defined by the object owner.
Reference:
http://docs.aws.amazon.com/AmazonS3/Iatest/dev/access-control-auth-workflow-object-operation.htmI

NEW QUESTION 4
Can you configure an RDS Read Replica using CIoudFormation templates?

• A. Yes, provided that you have root access.
• B. Yes, when you create a new CIoudFormation template
• C. Yes, but not for all Regions.
• D. No, you can add the ReadRepIica only when the resource is made available by CIoudFormation

Answer: B

Explanation: AWS CIoudFormation gives developers and systems administrators an easy way to create and manage collections of AWS resources. You can now set Read Replicas for your databases with RDS when you create a new C|oudFormation tempIate.You can start using it with the sample template of C|oudFormation.
Reference:
https://s3.amazonaws.com/cloudformation-templates-us-east-1/RDS_MySQL_With_Read_RepIica.tempI

NEW QUESTION 5
Regarding Amazon SNS, you can send notification messages to mobile devices through any of the following supported push notification services, EXCEPT:

• A. Google Cloud Messaging for Android (GCM)
• B. Apple Push Notification Service (APNS)
• C. Amazon Device Messaging (ADM)
• D. Microsoft Windows Mobile Messaging (MWMM)

Answer: D

Explanation: In Amazon SNS, you have the ability to send notification messages directly to apps on mobile devices. Notification messages sent to a mobile endpoint can appear in the mobile app as message alerts, badge updates, or even sound alerts. Microsoft Windows MobiIe Messaging (MWMM) doesn’t exist and is not supported by Amazon SNS.
Reference: http://docs.aws.amazon.com/sns/latest/dg/SNSMobiIePush.htmI

NEW QUESTION 6
Which of the following is an example of a good DynamoDB hash key schema for provisioned throughput efficiency?

• A. User ID, where the application has many different users.
• B. Status Code where most status codes are the same
• C. Device ID, where one is by far more popular than all the others.
• D. Game Type, where there are three possible game types

Answer: A

NEW QUESTION 7
If a message is retrieved from a queue in Amazon SQS, how long is the message inaccessible to other users by default?

• A. 0 seconds
• B. 1 hour
• C. 1 day
• D. forever
• E. 30 seconds

Answer: E

NEW QUESTION 8
When you create a table with a hash-and-range key, you must define one or more secondary indexes on that table.

• A. False, hash-range key is another name for secondary index
• B. False, it is optional
• C. True
• D. False, when you have Hash-Range key you cannot define Secondary index

Answer: B

Explanation: When you create a table with a hash-and-range key in DynamoDB, you can also define one or more secondary indexes on that table.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/LSI.htmI

NEW QUESTION 9
In regards to VPC, select the correct statement:

• A. You can associate multiple subnets with the same Route Table.
• B. You can associate multiple subnets with the same Route Table, but you can't associate a subnet with only one Route Table.
• C. You can't associate multiple subnets with the same Route Table.
• D. None of thes

Answer: A

Explanation: Every subnet in your VPC must be associated with exactly one Route Table. However, multiple subnets can be associated with the same Route Table.
Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Route_TabIes.html

NEW QUESTION 10
When you use the AWS Elastic Beanstalk console to deploy a new application you’II need to upload a source bundle and it should .

• A. Consist of a single .zip file
• B. Consist of a single .war file
• C. Consist of a single .zip file or .war file
• D. Consist of a folder with all files

Answer: C

Explanation: When you use the AWS Elastic Beanstalk console to deploy a new application or an application version, you’II need to upload a source bundle. Your source bundle must meet the following requirements: Consist of a single .zip file or .war file
Not exceed 512 MB
Not include a parent folder or top-level directory (subdirectories are fine) Reference:
http://docs.aws.amazon.com/elasticbeanstaIk/latest/dg/using-features.depIoyment.source.html

NEW QUESTION 11
is a task coordination and state management service for cloud applications.

• A. Amazon SES
• B. Amazon SWF
• C. Amazon FPS
• D. Amazon SNS

Answer: B

Explanation: Amazon Simple Workflow (Amazon SWF) is a task coordination and state management service for cloud applications. With Amazon SWF, you can stop writing complex glue-code and state machinery and invest more in the business logic that makes your applications unique.
Reference: http://aws.amazon.com/swf/

NEW QUESTION 12
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

Answer: A

Explanation: 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

NEW QUESTION 13
You cannot access your AWS console, so you revert to using the CLI that you are not familiar with. Which of the following commands is not a valid CLI command for EC2 instances?

• A. ec2-allocate-address
• B. ec2-attach-internet-gateway
• C. ec2-associate-route-table
• D. ec2-allocate-interface

Answer: D

Explanation: You can use the CLI tools to manage your Amazon EC2 resources (such as instances, security groups, and volumes) and your Amazon VPC resources (such as VPCs, subnets, route tables, and Internet gateways). Before you can start using the tools, you must download and configure them.
The following are valid CLI commands for EC2 instances: ec2-accept-vpc-peering-connection
ec2-allocate-address
ec2-assign-private-ip-addresses ec2-associate-address
ec2-associate-dhcp-options ec2-associate-route-table
ec2-attach-internet-gateway
ec2-attach-network-interface (not ec2-allocate-interface) Reference:
http://docs.aws.amazon.com/AWSEC2/latest/CommandLineReference/command-reference.html

NEW QUESTION 14
EC2 instances are launched from Amazon Machine images (AMIS). A given public AMI can:

• A. be used to launch EC2 Instances in any AWS region.
• B. only be used to launch EC2 instances in the same country as the AMI is stored.
• C. only be used to launch EC2 instances in the same AWS region as the AMI is stored.
• D. only be used to launch EC2 instances in the same AWS availability zone as the AMI is stored

Answer: C

NEW QUESTION 15
In DynamoDB, what type of HTTP response codes indicate that a problem was found with the client request sent to the service?

• A. 5xx HTTP response code
• B. 200 HTTP response code
• C. 306 HTTP response code
• D. 4xx HTTP response code

Answer: D

NEW QUESTION 16
Company C has recently launched an online commerce site for bicycles on AWS. They have a "Product" DynamoDB table that stores details for each bicycle, such as, manufacturer, color, price, quantity and size to display in the online store. Due to customer demand, they want to include an image for each bicycle along with the existing details.
Which approach below provides the least impact to provisioned throughput on the "Product" table?

• A. Serialize the image and store it in multiple DynamoDB tables
• B. Create an "Images" DynamoDB table to store the Image with a foreign key constraint to the "Product" table
• C. Add an image data type to the "Product" table to store the images in binary format
• D. Store the images in Amazon S3 and add an S3 URL pointer to the "Product" table item for each image

Answer: D

NEW QUESTION 17
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

Answer: C

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

NEW QUESTION 18
When a user is detaching an EBS volume from a running instance and attaching it to a new instance, which of the below mentioned options should be followed to avoid file system damage?

• A. Unmount the volume first
• B. Stop all the I/O of the volume before processing
• C. Take a snapshot of the volume before detaching
• D. Force Detach the volume to ensure that all the data stays intact

Answer: A

Explanation: When a user is trying to detach an EBS volume, the user can either terminate the instance or explicitly remove the volume. It is a recommended practice to unmount the volume first to avoid any file system damage.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-detaching-volume.html

NEW QUESTION 19
Can a user get a notification of each instance start / terminate configured with Auto Scaling?

• A. Yes, always
• B. No
• C. Yes, if configured with the Auto Scaling group
• D. Yes, if configured with the Launch Config

Answer: C

Explanation: The user can get notifications using SNS if he has configured the notifications while creating the Auto Scaling group.
Reference: http://docs.aws.amazon.com/AutoScaIing/latest/DeveIoperGuide/GettingStartedTutoriaI.html