Far Out AWS-Certified-Developer-Associate Study Guides 2021

NEW QUESTION 1
A user is launching an instance with EC2. Which of the below mentioned options does the user need to consider before launching an instance?

• A. Select the region where the instance is being launched.
• B. Select the instance type.
• C. All the options listed should be considered..
• D. Select the OS of the AM

Answer: C

Explanation:
Regarding Amazon EC2, when launching an instance, the user needs to select the region the instance would be launched from. While launching, the user needs to plan for the instance type and the OS of the instance.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-Iaunch-instance_|inux.htmI

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
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 4
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

NEW QUESTION 5
You attempt to store an object in the US-STANDARD region in Amazon S3, and receive a confirmation that it has been successfully stored. You then immediately make another API call and attempt to read this object. S3 tells you that the object does not exist
What could explain this behavior?

• A. US-STANDARD uses eventual consistency and it can take time for an object to be readable in a bucket
• B. Objects in Amazon S3 do not become visible until they are replicated to a second region.
• C. US-STANDARD imposes a 1 second delay before new objects are readable.
• D. You exceeded the bucket object limit, and once this limit is raised the object will be visible.

Answer: A

NEW QUESTION 6
Which features can be used to restrict access to data in S3? Choose 2 answers

• A. Use S3 Virtual Hosting
• B. Set an S3 Bucket policy.
• C. Enable IAM Identity Federation.
• D. Set an S3 ACL on the bucket or the object.
• E. Create a C|oudFront distribution for the bucket

Answer: CD

NEW QUESTION 7
A user has created a new EBS volume from an existing snapshot. The user mounts the volume on the instance to which it is attached. Which of the below mentioned options is a required step before the user can mount the volume?

• A. Run a cyclic check on the device for data consistency
• B. Create the file system of the volume
• C. Resize the volume as per the original snapshot size
• D. No step is require
• E. The user can directly mount the device

Answer: D

Explanation:
When a user is trying to mount a blank EBS volume, it is required that the user first creates a file system within the volume. If the volume is created from an existing snapshot then the user needs not to create a file system on the volume as it will wipe out the existing data.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-using-volumes.htmI

NEW QUESTION 8
A user has created an RDS instance with MySQL. The user is using the HeidiSQL client to connect with the RDS DB. The client is unable to connect to DB from his home machine. What is a possible reason for the failure?

• A. The user has to open port 80 in the RDS security group to connect with RDS DNS
• B. The security group is not configured to allow a request from the user’s IP on port 3306
• C. You can never connect to RDS from your desktop
• D. The user has to open port 22 in the RDS security group to connect with RDS DNS

Answer: B

Explanation:
If the user needs to connect to RDS then he has to open port 3306 in the RDS security group for his IP address.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html

NEW QUESTION 9
An orgAMzation has 10000 employees. The orgAMzation wants to give restricted AWS access to each employee. How can the orgAMzation achieve this?

• A. Create an IAM user for each employee and make them a part of the group
• B. It is not recommended to support 10000 users with IAM
• C. Use STS and create the users’ run time
• D. Use Identity federation with SSO

Answer: D

Explanation:
Identity federation enables users from an existing directory to access resources within your AWS account,
making it easier to manage your users by maintaining their identities in a single place. In this case, the federated user is the only solution since AWS does not allow creating more than 5000 IAM users. Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/LimitationsOnEntities.html

NEW QUESTION 10
Which of the below mentioned options can be a good use case for storing content in AWS RRS?

• A. Storing mission critical data Files
• B. Storing infrequently used log files
• C. Storing a video file which is not reproducible
• D. Storing image thumbnails

Answer: D

Explanation:
AWS RRS provides the same functionality as AWS S3, but at a cheaper rate. It is ideally suited for non-mission, critical applications, such as files which can be reproduced.
Reference: http://docs.aws.amazon.com/AmazonS3/Iatest/dev/UsingRRS.htmI

NEW QUESTION 11
In AWS Elastic Beanstalk, you can update your deployed application even while it is part of a running environment. For a Java application, you can also use to update your deployed application.

• A. the AWS Toolkit for Eclipse
• B. the AWS Toolkit for Visual Studio
• C. the AWS Toolkit for JVM
• D. the AWS Toolkit for Netbeans

Answer: A

Explanation:
In AWS Elastic Beanstalk, you can update your deployed application, even while it is part of a running environment. For a Java application, you can also use the AWS Toolkit for Eclipse to update your deployed application.
Reference: http://docs.aws.amazon.com/elasticbeanstaIk/latest/dg/GettingStarted.WaIkthrough.htmI

NEW QUESTION 12
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 13
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 14
Which of the following is chosen as the default region when making an API call with an AWS SDK?

• A. ap-northeast-1
• B. us-west-2
• C. us-east-1
• D. eu-west-1
• E. us-central-1

Answer: C

NEW QUESTION 15
If an application is storing hourly log files from thousands of instances from a high traffic web site, which naming scheme would give optimal performance on S3?

• A. Sequential
• B. instancelD_Iog-HH-DD-NIM-YYYY
• C. instancelD_Iog-YYYY-NIM-DD-HH
• D. HH-DD-NINI-YYYY-Iog_instanceID
• E. YYYY-MM-DD-HH-|og_instance|D

Answer: E

NEW QUESTION 16
A user is planning to host MS SQL on an EBS volume. It was recommended to use the AWS RDS. What advantages will the user have if he uses RDS in comparison to an EBS based DB?

• A. Better throughput with PIOPS
• B. Automated backup
• C. NIS SQL is not supported with RDS
• D. High availability with multi AZs

Answer: B

Explanation:
Comparing with on-premises or EC2 based NIS SQL, RDS provides an automated backup feature. PIOPS is available with both RDS and EBS. However, HA is not available with NIS SQL.
Reference: https://aws.amazon.com/rds/faqs/

NEW QUESTION 17
What is the format of structured notification messages sent by Amazon SNS?

• A. An XML object containing MessageId, UnsubscribeURL, Subject, lVIessage and other values
• B. An JSON object containing MessageId, DupIicateFIag, lVIessage and other values
• C. An XML object containing MessageId, DupIicateFIag, lVIessage and other values
• D. An JSON object containing MessageId, unsubscribeURL, Subject, lVIessage and other values

Answer: D

NEW QUESTION 18
ExamKiIIer (with AWS account ID H1122223333) has created 50 IAM users for its orgAMzation’s employees. ExamKiIIer wants to make the AWS console login URL for all IAM users as: https:// examkiI|er.signin.aws.amazon.com/conso|e/. How can this be configured?

• A. Create a bucket with the name ExamKiI|er and map it with the IAM alias
• B. It is not possible to have capital letters as a part of the alias name
• C. The user needs to use Route 53 to map the ExamKiIIer domain and IAM URL
• D. For the AWS account, create an alias ExamKiIIer for the IAM login

Answer: B

Explanation:
If a user wants the URL of the AWS IAM sign-in page to have the company name instead of the AWS
account ID, he can create an alias for his AWS account ID. The alias must be unique across all Amazon Webservices products and contain only digits, lowercase letters, and hyphens.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/AccountAIias.html

NEW QUESTION 19
A user is creating an EBS volume. He asks for your advice. Which advice mentioned below should you not give to the user for creating an EBS volume?

• A. Take the snapshot of the volume when the instance is stopped
• B. Stripe multiple volumes attached to the same instance
• C. Create an AMI from the attached volume
• D. Attach multiple volumes to the same instance

Answer: C

Explanation:
When a user creates an EBS volume, the user can attach it to a running instance. The user can attach multiple volumes to the same instance and stripe them together to increase the I/O. The user can take a snapshot from the existing volume but cannot create an AMI from the volume. However, the user can create an AMI from a snapshot.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVoIumes.htmI

NEW QUESTION 20
Which DynamoDB limits can be raised by contacting AWS support? Choose 2 answers

• A. The number of hash keys per account
• B. The maximum storage used per account
• C. The number of tables per account
• D. The number of local secondary indexes per account
• E. The number of provisioned throughput units per account

Answer: CE

NEW QUESTION 21
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 22
A user wants to achieve High Availability with PostgreSQL DB. Which of the below mentioned functionalities helps achieve HA?

• A. Read Replica
• B. Multi AZ
• C. Multi region
• D. PostgreSQL does not support HA

Answer: B

Explanation:
The Multi AZ feature allows the user to achieve High Availability. For Mu|ti AZ, Amazon RDS
automatically provisions and maintains a synchronous "standby" replica in a different Availability Zone. Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html

NEW QUESTION 23
A user has created a new raw EBS volume. The user mounts the volume on the instance to which it is attached. Which of the below mentioned options is a required step before the user can mount the volume?

• A. Run a cyclic check on the device for data consistency
• B. Create a file system of the volume
• C. No step is require
• D. The user can directly mount the device
• E. Resize the volume as per the original snapshot size

Answer: B

Explanation:
When a user is trying to mount a blank EBS volume, it is required that the user first creates a file system within the volume.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-using-volumes.htmI

NEW QUESTION 24
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

NEW QUESTION 25
Doug has created a VPC with CIDR 10.201.0.0/16 in his AWS account. In this VPC he has created a public subnet with CIDR block 10.201.31.0/24. While launching a new EC2 from the console, he is not able to assign the private IP address 10.201.31.6 to this instance. Which is the most likely reason for this issue?

• A. Private IP address 10.201.31.6 is not part of the associated subnet's IP address range.
• B. Private IP address 10.201.31.6 is blocked via ACLs in Amazon infrastructure as a part of platform security.
• C. Private address IP 10.201.31.6 is currently assigned to another interface.
• D. Private IP address 10.201.31.6 is reserved by Amazon for IP networking purpose

Answer: C

Explanation:
In Amazon VPC, you can assign any Private IP address to your instance as long as it is: Part of the associated subnet's IP address range
Not reserved by Amazon for IP networking purposes Not currently assigned to another interface Reference: http://aws.amazon.com/vpc/faqs/

NEW QUESTION 26
A user is uploading archives to Glacier. The user is trying to understand key Glacier resources. Which of the below mentioned options is not a Glacier resource?

• A. Notification configuration
• B. Archive ID
• C. Job
• D. Archive

Answer: B

Explanation:
AWS Glacier has four resources. Vault and Archives are core data model concepts. Job is required to initiate download of archive. The notification configuration is required to send user notification when archive is available for download.
Reference: http://docs.aws.amazon.com/amazongIacier/latest/dev/amazon-glacier-data-model.html

NEW QUESTION 27
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 28
A user has not enabled versioning on an S3 bucket. What will be the version ID of the object inside that bucket?

• A. There will be no version attached
• B. Null
• C. Blank

Answer: C

Explanation:
S3 objects stored in the bucket before the user has set the versioning state have a version ID of null. When the user enables versioning, the objects in the bucket do not change and their ID remains null. Reference: http://docs.aws.amazon.com/AmazonS3/latest/dev/AddingObjectstoVersionSuspendedBuckets.htmI

NEW QUESTION 29
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 30
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