Precise AWS-Certified-Developer-Associate Dumps Questions 2021

NEW QUESTION 1
What is one key difference between an Amazon EBS-backed and an instance-store backed instance?

• A. Virtual Private Cloud requires EBS backed instances
• B. Amazon EBS-backed instances can be stopped and restarted
• C. Auto scaling requires using Amazon EBS-backed instances.
• D. Instance-store backed instances can be stopped and restarte

Answer: B

NEW QUESTION 2
How do you configure SQS to support longer message retention?

• A. Set the lVIessageRetentionPeriod attribute using the SetQueueAttributes method
• B. Using a Lambda function
• C. You can'
• D. It is set to 14 days and cannot be changed
• E. You need to request it from AWS

Answer: A

Explanation: To configure the message retention period, set the lVIessageRetentionPeriod attribute using the SetQueueAttributes method. This attribute is used to specify the number of seconds a message will be retained by SQS. Currently the default value for the message retention period is 4 days. Using the lVIessageRetentionPeriod attribute, the message retention period can be set anywhere from 60 seconds (1 minute), up to 1209600 seconds (14 days).
Reference: https://aws.amazon.com/sqs/faqs/

NEW QUESTION 3
A user is part of a group which has a policy allowing him just read only access to EC2. The user is part of another group which has full access to EC2. What happens when the user tries to launch an instance?

• A. It will allow the user to launch the instance
• B. It will fail since the user has just read only access
• C. It will allow or deny based on the group under which the user has logged into EC2
• D. It will not allow the user to add to the conflicting groups

Answer: A

Explanation: The IAM group policy is always aggregated. In this case, if the user does not have permission for one group, but has permission for another group, he will have full access to EC2. Unless there is specific deny policy, the user will be able to access EC2.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/PoIiciesOverview.htmI

NEW QUESTION 4
A startup s photo-sharing site is deployed in a VPC. An ELB distributes web traffic across two subnets. ELB session stickiness is configured to use the AWS-generated session cookie, with a session TTL of 5 minutes. The webserver Auto Scaling Group is configured as: min-size=4, max-size=4.
The startups preparing for a public launch, by running load-testing software installed on a single EC2 instance running in us-west-2a. After 60 minutes of load-testing, the webserver logs show:

Which recommendations can help ensure load-testing HTTP requests are evenly distributed across the
four webservers? Choose 2 answers

• A. Launch and run the load-tester EC2 instance from us-east-1 instead.
• B. Re-configure the load-testing software to re-resolve DNS for each web request.
• C. Use a 3rd-party load-testing service which offers globally-distributed test clients.
• D. Configure ELB and Auto Scaling to distribute across us-west-2a and us-west-2c.
• E. Configure ELB session stickiness to use the app-specific session cooki

Answer: BE

NEW QUESTION 5
What item operation allows the retrieval of multiple items from a DynamoDB table in a single API call?

• A. Getltem
• B. BatchGetItem
• C. GetMu|tip|e|tems
• D. GetItemRange

Answer: B

NEW QUESTION 6
An orgAMzation has launched two applications: one for blogging and one for ECM on the same AWS Linux EC2 instance running in the AWS VPC. The orgAMzation has attached two private IPs (primary and secondary) to the above mentioned instance. The orgAMzation wants the instance OS to recognize the secondary IP address. How can the orgAMzation configure this?

• A. Use the ec2-net-utility package which updates routing tables, uses DHCP to refresh the secondary IP and adds the network interface.
• B. Use the ec2-net-utils package which will configure an additional network interface and update the routing table
• C. Use the ec2-ip-update package which can configure the network interface as well as update the secondary IP with DHCP.
• D. Use the ec2-ip-utility package which can update the routing tables as well as refresh the secondary IP using DHCP.

Answer: B

Explanation: A Virtual Private Cloud (VPC) is a virtual network dedicated to the user’s AWS account. It enables the
user to launch AWS resources into a virtual network that the user has defined. With VPC the user can specify multiple private IP addresses for his instances.
The number of network interfaces and private IP addresses that a user can specify for an instance depends on the instance type. This scenario helps when the user wants to host multiple websites on a single EC2 instance. After the user has assigned a secondary private IP address to his instance, he needs to configure the operating system on that instance to recognize the secondary private IP address. For AWS Linux, the ec2-net-utils package can take care of this step. It configures additional network interfaces that the user can attach while the instance is running, refreshes secondary IP addresses during DHCP lease renewal, and updates the related routing rules.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/MuItipIeIP.html

NEW QUESTION 7
Is it possible to create an S3 bucket accessible only by a certain IAM user, using policies in a C|oudFormation template?

• A. No, you can only create the S3 bucket but not the IAM user.
• B. S3 is not supported by CIoudFormation.
• C. Yes, all these resources can be created using a CIoudFormation template
• D. No, in the same template you can only create the S3 bucket and the realtive polic

Answer: C

Explanation: With AWS Identity and Access Management (IAM), you can create IAM users to control who has access to which resources in your AWS account. You can use IAM with AWS CIoudFormation to control what AWS CIoudFormation actions users can perform, such as view stack templates, create stacks, or delete stacks.
In addition to AWS CIoudFormation actions, you can manage what AWS services and resources are available to each user.

NEW QUESTION 8
A user is planning to host data with RDS. Which of the below mentioned databases is not supported by RDS?

• A. PostgreSQL
• B. SQLDB
• C. Oracle
• D. MS SQL

Answer: B

Explanation: Amazon Relational Database Service (Amazon RDS) is a web service that makes it easier to set up, operate, and scale a relational database in the cloud. AWS RDS supports popular DBs, such as lV|ySQL, PostgreSQL, MS SQL and Oracle. This means that the code, applications, and tools user is already using with existing databases can be used with Amazon RDS too. In short, it is a managed Relation Database offering from AWS which manages backups, software patching, automatic failure detection, and recovery of Database.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html

NEW QUESTION 9
How can a user configure three termination policies for the AutoScaIing group?

• A. Define multiple policies in random order
• B. Define multiple policies in the ordered list
• C. Keep updating the AutoScaIing group with each policy
• D. The user cannot specify more than two policies for AutoScaIing

Answer: B

Explanation: To configure the Auto Scaling termination policy, the user can either specify any one of the policies as a standalone policy or list multiple policies in an ordered list. The policies are executed in the order that they are listed.
Reference: http://docs.aws.amazon.com/AutoScaIing/latest/DeveIoperGuide/us-termination-policy.html

NEW QUESTION 10
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 11
Regarding Amazon SQS, are there restrictions on the names of Amazon SQS queues?

• A. No
• B. Ye
• C. Queue names must be unique within an AWS account and you cannot use hyphens (-) and underscores (_)
• D. Ye
• E. Queue names are limited to 80 characters and queue names must be unique within an AWS account
• F. Ye
• G. Queue names are limited to 80 characters but queue names do not need to be unique within an AWS account

Answer: C

Explanation: Queue names are limited to 80 characters. Alphanumeric characters plus hyphens (-) and underscores (_) are allowed. Queue names must be unique within an AWS account. After you delete a queue, you can reuse the queue name.
Reference: https://aws.amazon.com/sqs/faqs/

NEW QUESTION 12
How long are the messages kept on an SQS queue by default?

• A. If a message is not read, it is never deleted
• B. 2 weeks
• C. 1 day
• D. 4 days

Answer: D

Explanation: The SQS message retention period is configurable and can be set anywhere from 1 minute to 2 weeks. The default is 4 days and once the message retention limit is reached your messages will be automatically deleted. The option for longer message retention provides greater filexibility to allow for longer intervals between message production and consumption.
Reference: https://aws.amazon.com/sqs/faqs/

NEW QUESTION 13
A user has enabled automated backup for an RDS instance. What is the longest duration for which the user can retain the automated backup?

• A. 25 days
• B. 15 days
• C. 45 days
• D. 35 days

Answer: D

Explanation: Amazon RDS provides two different methods for backing up and restoring the Amazon DB instances: automated backups and DB snapshots. Automated backups automatically back up the DB instance during a specific, user-definable backup window, and keep the backups for a limited, user-specified period of time. The maximum period can be 35 days.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAmazonR DSInstances.htmI

NEW QUESTION 14
A user wants to access RDS from an EC2 instance using IP addresses. Both RDS and EC2 are in the same region, but different AZs. Which of the below mentioned options help configure that the instance is accessed faster?

• A. Configure the Private IP of the Instance in RDS security group
• B. Security group of EC2 allowed in the RDS security group
• C. Configuring the elastic IP of the instance in RDS security group
• D. Configure the Public IP of the instance in RDS security group

Answer: A

Explanation: If the user is going to specify an IP range in RDS security group, AWS recommends using the private IP address of the Amazon EC2 instance. This provides a more direct network route from the Amazon EC2 instance to the Amazon RDS DB instance, and does not incur network charges for the data sent outside of the Amazon network.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_WorkingWithSecurityGroups.html

NEW QUESTION 15
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 16
A user is creating multiple IAM users. What advice should be given to him to enhance the security?

• A. Grant least prMleges to the indMdual user
• B. Grant all higher prMleges to the group
• C. Grant less prMleges for user, but higher prMleges for the group
• D. Grant more prMleges to the user, but least prMleges to the group

Answer: A

Explanation: It is a recommended rule that the root user should grant the least prMleges to the IAM user or the group. The higher the prMleges, the more problems it can create.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/IAMBestPractices.htmI

NEW QUESTION 17
In DynamoDB, could you use IAM to grant access to Amazon DynamoDB resources and API actions?

• A. Yes
• B. Depended to the type of access
• C. In DynamoDB there is no need to grant access
• D. No

Answer: A

Explanation: Amazon DynamoDB integrates with AWS Identity and Access Management (IAM). You can use AWS IAM to grant access to Amazon DynamoDB resources and API actions. To do this, you first write an AWS IAM policy, which is a document that explicitly lists the permissions you want to grant. You then attach that policy to an AWS IAM user or role.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/UsingIAMWithDDB.htmI

NEW QUESTION 18
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 19
A user is launching an AWS RDS with MySQL. Which of the below mentioned options allows the user to configure the INNODB engine parameters?

• A. Options group
• B. Engine parameters
• C. Parameter groups
• D. DB parameters

Answer: C

Explanation: With regard to RDS, the user can manage the configuration of a DB engine by using a DB parameter group. A DB parameter group contains engine configuration values that can be applied to one or more DB instances of the same instance type.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html