NEW QUESTION 1
You need to develop and run some new applications on AWS and you know that Elastic Beanstalk and CIoudFormation can both help as a deployment mechAMsm for a broad range of AWS resources. Which of the following statements best describes the differences between Elastic Beanstalk and C|oudFormation?

• A. Elastic Beanstalk uses Elastic load balancing and CIoudFormation doesn't.
• B. CIoudFormation is faster in deploying applications than Elastic Beanstalk.
• C. CIoudFormation is much more powerful than Elastic Beanstalk, because you can actually design and script custom resources
• D. Elastic Beanstalk is faster in deploying applications than C|oudFormatio

Answer: C

Explanation:
These services are designed to complement each other. AWS Elastic Beanstalk provides an environment to easily develop and run applications in the cloud. It is integrated with developer tools and provides a one-stop experience for you to manage the lifecycle of your applications. AWS CIoudFormation is a convenient deployment mechAMsm for a broad range of AWS resources. It supports the infrastructure needs of many different types of applications such as existing enterprise applications, legacy applications, applications built using a variety of AWS resources and container-based solutions (including those built using AWS Elastic Beanstalk).
AWS CIoudFormation introduces two new concepts: The template, a JSON-format, text-based file that describes all the AWS resources you need to deploy to run your application and the stack, the set of AWS resources that are created and managed as a single unit when AWS CIoudFormation instantiates a template.
Reference: http://aws.amazon.com/c|oudformation/faqs/

NEW QUESTION 2
Which of the below mentioned commands allows the user to share the AMI with his peers using the AWS EC2 CLI?

• A. ec2-share-image-public
• B. ec2-share-image-account
• C. ec2-share-image
• D. ec2-modify-image-attribute

Answer: D

Explanation:
A user can share an AMI with another user / peer using the command: ec2-modify-image-attribute
<AMI-ID> -| -a <AWS Account |D>
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/sharingamis-expIicit.htmI

NEW QUESTION 3
A user is setting up an Elastic Load BaIancer(ELB). Which of the below parameters should the user consider so as the instance gets registered with the ELB?

• A. ELB DNS
• B. IP address
• C. Security group
• D. ELB IP

Answer: B

Explanation:
The EC2 instances are registered with the load balancer using the IP addresses associated with the instances. When an instance is stopped and then started, the IP address associated with the instance changes. This prevents the load balancer from routing traffic to the restarted instance. When the user stops and then starts registered EC2 instances, it is recommended that to de-register the stopped instance from load balancer, and then register the restarted instance. Failure to do so may prevent the load balancer from performing health checks and routing the traffic to the restarted instance.

NEW QUESTION 4
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 5
A user is using an EBS backed instance. Which of the below mentioned statements is true?

• A. The user will be charged for volume and instance only when the instance is running
• B. The user will be charged for the volume even if the instance is stopped
• C. The user will be charged only for the instance running cost
• D. The user will not be charged for the volume if the instance is stopped

Answer: B

Explanation:
If a user has launched an EBS backed instance, the user will be charged for the EBS volume even though the instance is in a stopped state. The instance will be charged for the EC2 hourly cost only when it is running.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-detaching-volume.html

NEW QUESTION 6
You run an ad-supported photo sharing website using S3 to serve photos to visitors of your site. At some point you find out that other sites have been linking to the photos on your site, causing loss to your business.
What is an effective method to mitigate this?

• A. Store photos on an EBS volume ofthe web server
• B. Remove public read access and use signed URLs with expiry dates.
• C. Use C|oudFront distributions for static content.
• D. Block the IPs of the offending websites in Security Group

Answer: B

NEW QUESTION 7
In DynamoDB, to get a detailed listing of secondary indexes on a table, you can use the action.

• A. DescribeTabIe
• B. BatchGetItem
• C. Getltem
• D. TabIeName

Answer: A

Explanation:
In DynamoDB, DescribeTab|e returns information about the table, including the current status ofthe table, when it was created, the primary key schema, and any indexes on the table.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Secondarylndexes.htmI

NEW QUESTION 8
A user is creating a snapshot of an EBS volume. Which of the below statements is incorrect in relation to the creation of an EBS snapshot?

• A. Its incremental
• B. It can be used to launch a new instance
• C. It is stored in the same AZ as the volume
• D. It is a point in time backup of the EBS volume

Answer: C

Explanation:
The EBS snapshots are a point in time backup of the EBS volume. It is an incremental snapshot, but is always specific to the region and never specific to a single AZ.
Hence the statement "|t is stored in the same AZ as the volume" is incorrect.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSSnapshots.htmI

NEW QUESTION 9
Which of the following are valid SNS delivery transports? Choose 2 answers

• A. HTTP
• B. UDP
• C. SNIS
• D. DynamoDB
• E. Named Pipes

Answer: AC

NEW QUESTION 10
A user has hosted a website on AWS and uses ELB to load balance the multiple instances. The user application does not have any cookie management. How can the user bind the session of the requestor with a particular instance?

• A. Bind the IP address with a sticky cookie
• B. Create a cookie at the application level to set at ELB
• C. Use session synchronization with ELB
• D. Let ELB generate a cookie for a specified duration

Answer: D

Explanation:
The key to manage the sticky session is determining how long the load balancer should route the user's request to the same application instance. If the application has its own session cookie, then the user can set the Elastic Load Balancing to create the session cookie to follow the duration specified by the appIication's session cookie. If the user’s application does not have its own session cookie, then he can set the Elastic Load Balancing to create a session cookie by specifying his own stickiness duration. Reference: http://docs.aws.amazon.com/EIasticLoadBaIancing/latest/DeveIoperGuide/US_StickySessions.html

NEW QUESTION 11
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 12
How does Amazon SQS allow multiple readers to access the same message queue without losing messages or processing them many times?

• A. By identifying a user by his unique id
• B. By using unique cryptography
• C. Amazon SQS queue has a configurable visibility timeout.
• D. MuItipIe readers can't access the same message queue

Answer: C

Explanation:
Every Amazon SQS queue has a configurable visibility timeout. For the designated amount of time after a message is read from a queue, it will not be visible to any other reader. As long as the amount of time that it takes to process the message is less than the visibility timeout, every message will be processed and deleted. In the event that the component processing the message fails or becomes unavailable, the message will again become visible to any component reading the queue once the visibility timeout ends. This allows you to have many components all reading messages from the same queue, with each working to process different messages.
Reference: https://aws.amazon.com/sqs/faqs/

NEW QUESTION 13
A user has developed an application which is required to send the data to a NoSQL database. The user wants to decouple the data sending such that the application keeps processing and sending data but
does not wait for an acknowledgement of DB. Which of the below mentioned applications helps in this scenario?

• A. AWS Simple Notification Service
• B. AWS Simple Workflow
• C. AWS Simple Query Service
• D. AWS Simple Queue Service

Answer: D

Explanation:
Amazon Simple Queue Service (SQS) is a fast, reliable, scalable, and fully managed message queuing service. SQS provides a simple and cost-effective way to decouple the components of an application. In this case, the user can use AWS SQS to send messages which are received from an application and sent to DB. The application can continue processing data without waiting for any acknowledgement from DB. The user can use SQS to transmit any volume of data without losing messages or requiring other services to always be available.
Reference: http://aws.amazon.com/sqs/

NEW QUESTION 14
When you use the AWS Elastic Beanstalk console to deploy a new application .

• A. you’II need to upload each file separately
• B. you’II need to create each file and path
• C. you’II need to upload a source bundle
• D. you’II need to create each file

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.
Reference:
http://docs.aws.amazon.com/elasticbeanstaIk/latest/dg/using-features.depIoyment.source.html

NEW QUESTION 15
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 16
A user has launched an EC2 instance. However, due to some reason the instance was terminated. If the user wants to find out the reason for termination, where can he find the details?

• A. The user can get information from the AWS console, by checking the Instance description under the State transition reason label
• B. The user can get information from the AWS console, by checking the Instance description under the Instance Termination reason label
• C. The user can get information from the AWS console, by checking the Instance description under the Instance Status Change reason label
• D. It is not possible to find the details after the instance is terminated

Answer: A

Explanation:
An EC2 instance, once terminated, may be available in the AWS console for a while after termination. The user can find the details about the termination from the description tab under the label State transition reason. If the instance is still running, there will be no reason listed. If the user has explicitly stopped or terminated the instance, the reason will be "User initiated shutdown".
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Using_|nstanceStraightToTerminated.html

NEW QUESTION 17
Company B provides an online image recognition service and utilizes SOS to decouple system components for scalability The SQS consumers poll the imaging queue as often as possible to keep
end-to-end throughput as high as possible. However, Company B is realizing that polling in tight loops is burning CPU cycles and increasing costs with empty responses.
How can Company B reduce the number of empty responses?

• A. Set the imaging queue visibility Timeout attribute to 20 seconds
• B. Set the Imaging queue ReceiveMessageWaitTimeSeconds attribute to 20 seconds
• C. Set the imaging queue MessageRetentionPeriod attribute to 20 seconds
• D. Set the DeIaySeconds parameter of a message to 20 seconds

Answer: B

NEW QUESTION 18
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