AWS-Certified-Developer-Associate Exam - Amazon AWS Certified Developer Associate

NEW QUESTION 1
Which of the below mentioned options is not a best practice to securely manage the AWS access credentials?

• A. Enable MFA for prMleged users
• B. Create indMdual IAM users
• C. Keep rotating your secure access credentials at regular intervals
• D. Create strong access key and secret access key and attach to the root account

Answer: D

Explanation: It is a recommended approach to avoid using the access and secret access keys of the root account.
Thus, do not download or delete it. Instead make the IAM user as powerful as the root account and use its credentials. The user cannot generate their own access and secret access keys as they are always generated by AWS.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/IAMBestPractices.html

NEW QUESTION 2
A user has enabled serverside encryption with S3. The user downloads the encrypted object from S3. How can the user decrypt it?

• A. S3 does not support server side encryption
• B. S3 provides a server side key to decrypt the object
• C. The user needs to decrypt the object using their own private key
• D. S3 manages encryption and decryption automatically

Answer: D

Explanation: If the user is using the server-side encryption feature, Amazon S3 encrypts the object data before saving it on disks in its data centres and decrypts it when the user downloads the objects. Thus, the user is free from the tasks of managing encryption, encryption keys, and related tools.
Reference: http://docs.aws.amazon.com/AmazonS3/Iatest/dev/UsingEncryption.htmI

NEW QUESTION 3
You have a number of image files to encode. In an Amazon SQS worker queue, you create an Amazon SQS message for each file specifying the command (jpeg-encode) and the location of the file in Amazon S3. Which of the following statements best describes the functionality of Amazon SQS?

• A. Amazon SQS is for single-threaded sending or receMng speeds.
• B. Amazon SQS is a non-distributed queuing system.
• C. Amazon SQS is a distributed queuing system that is optimized for horizontal scalability, not for single-threaded sending or receMng speeds.
• D. Amazon SQS is a distributed queuing system that is optimized for vertical scalability and for single-threaded sending or receMng speeds.

Answer: C

Explanation: Amazon SQS is a distributed queuing system that is optimized for horizontal scalability, not for
single-threaded sending or receMng speeds. A single client can send or receive Amazon SQS messages at a rate of about 5 to 50 messages per second. Higher receive performance can be achieved by requesting multiple messages (up to 10) in a single call. It may take several seconds before a message that has been to a queue is available to be received.
Reference: http://media.amazonwebservices.com/AWS_Storage_Options.pdf

NEW QUESTION 4
Which code snippet below returns the URL of a load balanced web site created in CIoudFormation with an AWS::EIasticLoadBaIancing::LoadBaIancer resource name "EIasticLoad BaIancer"?

• A. "Fn::Join" : [ '‘'‘ . ["http://", {"Fn::GetAtr" : ["EIasticLoadBalancer","DNSName"]}]]
• B. "Fn::Join" : [ '‘'‘ . ["http://", {"Fn::GetAtr" : ["E|asticLoadBa|ancer","Ur|"]}]]
• C. "Fn::Join" : [ '‘'‘ . ["http://", {"Ref" : "EIasticLoadBaIancerUr|"}]]
• D. "Fn::Join" : ["http://", {"Ref" : "EIasticLoadBaIancerDNSName"}]]

Answer: B

NEW QUESTION 5
What is the data model of DynamoDB?

• A. "Items", with Keys and one or more Attribute; and "Attribute", with Name and Value.
• B. "Database", which is a set of "TabIes", which is a set of "Items", which is a set of "Attributes".
• C. "TabIe", a collection of Items; "Items", with Keys and one or more Attribute; and "Attribute", with Name and Value.
• D. "Database", a collection of Tables; "TabIes", with Keys and one or more Attribute; and "Attribute", with Name and Value.

Answer: C

Explanation: The data model of DynamoDB is: "TabIe", a collection of Items;
"Items", with Keys and one or more Attribute; "Attribute", with Name and Value.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModeI.html

NEW QUESTION 6
Regarding Amazon SNS, to begin using Amazon SNS mobile push notifications, you first need that uses one of the supported push notification services: APNS, GCM, or ADM.

• A. an access policy for the mobile endpoints
• B. to active push notification service of Amazon SNS
• C. to know the type of mobile device operating system
• D. an app for the mobile endpoints

Answer: D

Explanation: In Amazon SNS, to begin using Amazon SNS mobile push notifications, you first need an app for the mobile endpoints that uses one of the supported push notification services: APNS, GCM, or ADM. After you've registered and configured the app to use one of these services, you configure Amazon SNS to send push notifications to the mobile endpoints.
Reference: http://docs.aws.amazon.com/sns/latest/dg/SNSMobiIePush.htmI

NEW QUESTION 7
When using a large Scan operation in DynamoDB, what technique can be used to minimize the impact of a scan on a tabIe's provisioned throughput?

• A. Set a smaller page size for the scan
• B. Use parallel scans
• C. Define a range index on the table
• D. Prewarm the table by updating all items

Answer: C

NEW QUESTION 8
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 9
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 sca

Answer: B

Explanation: In DynamoDB, Scan operations are always eventually consistent.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/APISummary.htmI

NEW QUESTION 10
An orgAMzation has enabled a strict password policy for its IAM users. The orgAMzation is taking help from the IAM console to set the password policy. Which of the below mentioned rules cannot be specified by the user as a part of the policy?

• A. Allow at least one lower case letter
• B. Allow at least one number
• C. Allow at least one non-alphanumeric character
• D. Do not allow the user to use the password from the last three passwords

Answer: D

Explanation: AWS IAM allows an orgAMzation to create multiple users and provide them access to various AWS services. By default when the user is created, he does not have password enabled and can not login to AWS console. If the orgAMzation wants to allow the users to login to AWS console, they can enable password for each user. It is required that IAM users follow certain guidelines to set their IAM login password. For this IAM provides root account owner to setup passwrod policy. The password policy also lets the specify whether all IAM users can change their own passwords. As part of policy, orgAMzation can specify that passwords for IAM users must be of a certain minimum length, must include certain characters, and a few more criteria such as below.
One upper/ lower or both letters One alpha numeric
One number
Reference: http://docs.aws.amazon.com/|AM/Iatest/UserGuide/Using_ManagingPasswordPoIicies.htm|

NEW QUESTION 11
True or False: AWS CIoudFormation allows you to create Microsoft Windows stacks.

• A. False, AWS CIoudFormation does not support Microsoft Windows.
• B. False, Amazon doesn’t support Microsoft Windows.
• C. False, you cannot create Windows stacks.
• D. True

Answer: D

Explanation: AWS CIoudFormation allows you to create Microsoft Windows stacks based on Amazon EC2 Windows Amazon Machine Images (AMIs) and provides you with the ability to install software, to use remote desktop to access your stack, and to update and configure your stack.
Reference: http://docs.aws.amazon.com/AWSCIoudFormation/latest/UserGuide/cfn-windows-stacks.html

NEW QUESTION 12
Which of the following programming languages have an officially supported AWS SDK? Choose 2 answers

• A. Perl
• B. PHP
• C. Pascal
• D. Java
• E. SQL

Answer: BD

NEW QUESTION 13
Regarding Amazon SQS, what happens if there is no actMty against a queue for more than 30 consecutive days?

• A. Your account will be suspended
• B. The queue may be deleted
• C. Nothing
• D. The queue will be deleted

Answer: B

Explanation: AWS reserve the right to delete a queue if none of the following requests have been issued against the queue for more than 30 consecutive days:
SendMessage ReceiveMessage DeIeteMessage GetQueueAttributes SetQueueAttributes
You should design your application with this in mind. Reference: https://aws.amazon.com/sqs/faqs/

NEW QUESTION 14
A user is enabling a static website hosting on an S3 bucket. Which of the below mentioned parameters cannot be configured by the user?

• A. Error document
• B. Conditional error on object name
• C. Index document
• D. Conditional redirection on object name

Answer: B

Explanation: To host a static website, the user needs to configure an Amazon S3 bucket for website hosting and then upload the website contents to the bucket. The user can configure the index, error document as well as configure the conditional routing of on object name.
Reference: http://docs.aws.amazon.com/AmazonS3/Iatest/dev/HowDoIWebsiteConfiguration.htm|

NEW QUESTION 15
Is there a limit to how much throughput you can get out of a single table in DynamoDB?

• A. Yes, not more than 1,000 writes/second or 1,000 reads/second
• B. No
• C. Yes, not more than 10,000 writes/second or 10,000 reads/second
• D. No, but If you wish to exceed throughput rates of 10,000 writes/second or 10,000 reads/second, you must first contact AWS.

Answer: D

Explanation: In DynamoDB, you can increase the throughput you have provisioned for your table using UpdateTabIe API or in the AWS Management Console. If you wish to exceed throughput rates of 10,000 writes/second or 10,000 reads/second, you must first contact AWS.
Reference: http://aws.amazon.com/dynamodb/

NEW QUESTION 16
AWS Elastic Beanstalk will change the health status of a web server environment tier to gray color when:

• A. AWS Elastic Beanstalk detects other problems with the environment that are known to make the application unavailable
• B. Your application hasn't responded to the application health check URL within the last one hour.
• C. Your application hasn't responded to the application health check URL within the last five minutes.
• D. Your appIication's health status is unknown because status is reported when the application is not in the ready state.

Answer: D

Explanation: AWS Elastic Beanstalk will change the health status of a web server environment tier to gray color when your appIication's health status is unknown (because status is reported when the application is not in the ready state).
Reference: http://docs.aws.amazon.com/elasticbeanstaIk/latest/dg/using-features.heaIthstatus.htmI

NEW QUESTION 17
A user is running a webserver on EC2. The user wants to receive the SMS when the EC2 instance utilization is above the threshold limit. Which AWS services should the user configure in this case?

• A. AWS CIoudWatch + AWS SES.
• B. AWS CIoudWatch + AWS SNS.
• C. AWS CIoudWatch + AWS SQS.
• D. AWS EC2 + AWS Cloudwatc

Answer: B

Explanation: Amazon SNS makes it simple and cost-effective to push to mobile devices, such as iPhone, iPad, Android, Kindle Fire, and internet connected smart devices, as well as pushing to other distributed services. In this case, the user can configure that Cloudwatch sends an alarm on when the threshold is crossed to SNS which will trigger an SMS.
Reference: http://aws.amazon.com/sns/

NEW QUESTION 18
What AWS products and features can be deployed by Elastic Beanstalk? Choose 3 answers

• A. Auto scaling groups
• B. Route 53 hosted zones
• C. Elastic Load Balancers
• D. RDS Instances
• E. Elastic IP addresses
• F. SQS Queues

Answer: ACD