AWS-Certified-Developer-Associate | Rebirth Amazon AWS Certified Developer - Associate AWS-Certified-Developer-Associate Samples

NEW QUESTION 1
You have written an application that uses the Elastic Load Balancing service to spread traffic to several web servers Your users complain that they are sometimes forced to login again in the middle of using your application, after they have already togged in. This is not behavior you have designed. What is a possible solution to prevent this happening?

• A. Use instance memory to save session state.
• B. Use instance storage to save session state.
• C. Use EBS to save session state
• D. Use EIastiCache to save session state.
• E. Use Glacier to save session slat

Answer: D

NEW QUESTION 2
Which of the following are correct statements with policy evaluation logic in AWS Identity and Access Management? Choose 2 answers

• A. By default, all requests are denied
• B. An explicit allow overrides an explicit deny
• C. An explicit allow overrides default deny.
• D. An explicit deny does not override an explicit allow
• E. By default, all request are allowed

Answer: AC

NEW QUESTION 3
Which of the following device names is recommended for an EBS volume that can be attached to an Amazon EC2 Instance running Windows?

• A. xvd[a-e]
• B. /mnt/sd[b-e]
• C. xvd[f-p]
• D. /dev/sda1

Answer: C

Explanation:
The xvd[f-p] is the recommended device name for EBS volumes that can be attached to the Amazon EC2 Instances running on Windows.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/device_naming.html

NEW QUESTION 4
Regarding Amazon SNS, to send messages to a queue through a topic, you must subscribe the queue to the Amazon SNS topic. You specify the queue by its .

• A. ARN
• B. Token
• C. Registration ID
• D. URL

Answer: A

Explanation:
In Amazon SNS, to send messages to a queue through a topic, you must subscribe the queue to the Amazon SNS topic. You specify the queue by its ARN.
Reference: http://docs.aws.amazon.com/sns/latest/dg/SendMessageToSQS.htmI

NEW QUESTION 5
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 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
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 8
An account owner has created an IAM user with the name examkiller. The account owner wants to give EC2 access of only the US West region to that IAM user. How can the owner configure this?

• A. While creating a policy provide the region as a part of the resources
• B. Create an IAM user in the US West region and give access to EC2
• C. Create an IAM policy and define the region in the condition
• D. It is not possible to provide access based on the region

Answer: C

Explanation:
The IAM policy is never region specific. If the user wants to configure the region specific setting, he needs to provide conditions as part of the policy.
Reference: http://awspolicygen.s3.amazonaws.com/poIicygen.htmI

NEW QUESTION 9
When working with AWS CIoudFormation Templates what is the maximum number of stacks that you can create?

• A. 500
• B. 50
• C. 20
• D. 10

Answer: C

Explanation:
C|oudFormation Limits
Maximum number of AWS CIoudFormation stacks that you can create is 20 stacks. Reference:
http://docs.aws.amazon.com/AWSCIoudFormation/latest/UserGuide/cloudformation-Iimits.htmI

NEW QUESTION 10
An ELB is diverting traffic across 5 instances. One of the instances was unhealthy only for 20 minutes. What will happen after 20 minutes when the instance becomes healthy?

• A. ELB will never divert traffic back to the same instance
• B. ELB will not automatically send traffic to the same instanc
• C. However, the user can configure to start sending traffic to the same instance
• D. ELB starts sending traffic to the instance once it is healthy
• E. ELB terminates the instance once it is unhealth
• F. Thus, the instance cannot be healthy after 10 minutes

Answer: C

Explanation:
AWS Elastic Load Balancing continuously checks the health of an instance. If one of the instances is unhealthy it stops sending traffic to it and automatically reroutes the traffic to the remaining running EC2 instances. If the failed EC2 instance is restored, Elastic Load Balancing will again start sending traffic to that instance.
Reference: http://docs.aws.amazon.com/E|asticLoadBaIancing/latest/DeveIoperGuide/Svclntro.htm|

NEW QUESTION 11
You are building an online store on AWS that uses SQS to process your customer orders. Your backend system needs those messages in the same sequence the customer orders have been put in. How can you achieve that?

• A. You can do this with SQS but you also need to use SWF
• B. Messages will arrive in the same order by default
• C. You can use sequencing information on each message
• D. It is not possible to do this with SQS

Answer: C

Explanation:
Amazon SQS is engineered to always be available and deliver messages. One of the resulting tradeoffs is that SQS does not guarantee first in, first out delivery of messages. For many distributed applications, each message can stand on its own, and as long as all messages are delivered, the order is not important. If your system requires that order be preserved, you can place sequencing information in each message,
so that you can reorder the messages when the queue returns them. Reference:
http://docs.aws.amazon.com/AWSSimpIeQueueService/latest/SQSDeveIoperGuide/\NeIcome.html

NEW QUESTION 12
What does Amazon SQS provide?

• A. An asynchronous message queue service.
• B. A Simple Query Sewer, managed directly by Amazon Web Services.
• C. None of these.
• D. A synchronous message queue service.

Answer: A

Explanation:
Amazon SQS stands for Simple Queue Services, and provides a cost-effective way to decouple the components of your application through an asynchronous message queue service
Reference: http://aws.amazon.com/sqs/

NEW QUESTION 13
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 14
What happens if your application performs more reads or writes than your provisioned capacity?

• A. Nothing
• B. requests above your provisioned capacity will be performed but you will receive 400 error codes.
• C. requests above your provisioned capacity will be performed but you will receive 200 error codes.
• D. requests above your provisioned capacity will be throttled and you will receive 400 error code

Answer: D

Explanation:
Speaking about DynamoDB, if your application performs more reads/second or writes/second than your tabIe’s provisioned throughput capacity allows, requests above your provisioned capacity will be throttled and you will receive 400 error codes.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/ProvisionedThroughputlntro.htmI

NEW QUESTION 15
A user is trying to configure access with S3. Which of the following options is not possible to provide access to the S3 bucket / object?

• A. Define the policy for the IAM user
• B. Define the ACL for the object
• C. Define the policy for the object
• D. Define the policy for the bucket

Answer: C

Explanation:
Amazon S3 offers access policy options broadly categorized as resource-based policies and user policies.
Access policies, such as ACL and resource policy can be attached to the bucket. With the object the user can only have ACL and not an object policy. The user can also attach access policies to the IAM users in the account. These are called user policies.
Reference: http://docs.aws.amazon.com/AmazonS3/latest/dev/s3-access-control.html

NEW QUESTION 16
A user is planning to create a structured database in the cloud. Which of the below mentioned AWS offerings help the user achieve the goal?

• A. AWS DynamoDB
• B. AWS RDS
• C. AWS Simp|eDB
• D. AWS RSD

Answer: B

Explanation:
AWS RDS is a managed database server offered by AWS, which makes it easy to set up, operate, and scale a relational database or structured data in cloud.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html

NEW QUESTION 17
ExamKiIIer (with AWS account ID 111122223333) has created 50 IAM users for its orgAMzation’s employees. What will be the AWS console URL for these associates?

• A. https:// 111122223333.signin.aws.amazon.com/conso|e/
• B. https:// signin.aws.amazon.com/consoIe/
• C. https://signin.aws.amazon.com/111122223333/conso|e/
• D. https://signin.aws.amazon.com/console/111122223333/

Answer: A

Explanation:
When an orgAMzation is using AWS IAM for creating various users and manage their access rights, the IAM user cannot use the login URL http://aws.amazon.com/console to access AWS management console. The console login URL for the IAM user will have AWS account ID of that orgAMzation to identify the IAM user belongs to particular account. The AWS console login URL for the IAM user will be https://
<AWS_Account_|D>.signin.aws.amazon.com/consoIe/. In this case it will be https:// 111122223333.signin.aws.amazon.com/consoIe/
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/AccountAIias.html

NEW QUESTION 18
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 19
Which of the following device names is reserved for the root device for Linux instances of Amazon EC2?

• A. /dev/sda1
• B. /dev/sd[b-e]
• C. xvd[a-e]
• D. /dev/sd[f-p][1 -6]

Answer: A

Explanation:
/dev/sda1 is the name of the device reserved for the root device for Linux instances. Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/device_naming.htmI

NEW QUESTION 20
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 21
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