Highest Quality Amazon-Web-Services DVA-C01 Braindumps Online

NEW QUESTION 1
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 2
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 3
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 4
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 5
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 6
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 7
When you register an actMty in Amazon SWF, you provide the following information, except:

• A. a name
• B. timeout values
• C. a domain
• D. version

Answer: C

Explanation:
When designing an Amazon SWF workflow, you precisely define each of the required actMties. You then register each actMty with Amazon SWF as an actMty type. When you register the actMty, you provide information such as a name and version, and some timeout values based on how long you expect the actMty to take.
Reference: http://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dg-intro-to-swf.html

NEW QUESTION 8
In AWS Elastic Beanstalk, if the application returns any response other than 200 ,OK or there is no response within the configured InactMtyTimeout period, .

• A. SQS once again makes the message visible in the queue and available for another attempt at processing
• B. SQS waits for another timeout
• C. SQS run DeIeteMessagecaII and deletes the message from the queue
• D. SQS sends a message to the application with the lVIessageID and pending status

Answer: A

Explanation:
In AWS Elastic Beanstalk, if the application returns any response other than 200, OK or there is no response within the configured InactMtyTimeout period, SQS once again makes the message visible in the queue and available for another attempt at processing.
Reference:
http://docs.aws.amazon.com/elasticbeanstaIk/latest/dg/using-features-managing-env-tiers.htmI#worker-e nviron

NEW QUESTION 9
An orgAMzation is hosting an application as part of the free usage tier. The orgAMzation wants to create IAM users for each of its 150 employees and they may access AWS as part of free usage tier. What will you advise the orgAMzation?

• A. The IAM is not available as a part of the free usage tier
• B. Create IAM roles and give access based on role since it will not cost the user
• C. Do not create more than 100 users as it will cost the orgAMzation.
• D. Create IAM users for each employee as it does not cost

Answer: D

Explanation:
IAM is a free service. You can create as many IAM users or groups as desired free of cost. Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/IAM_Introduction.htm|

NEW QUESTION 10
When you create a table with a hash-and-range key, you must define one or more secondary indexes on that table.

• A. False, hash-range key is another name for secondary index
• B. False, it is optional
• C. True
• D. False, when you have Hash-Range key you cannot define Secondary index

Answer: B

Explanation:
When you create a table with a hash-and-range key in DynamoDB, you can also define one or more secondary indexes on that table.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/LSI.htmI

NEW QUESTION 11
An online gaming site asked you if you can deploy a database that is a fast, highly scalable NoSQL database service in AWS for a new site that he wants to build. Which database should you recommend?

• A. Amazon Redshift
• B. Amazon SimpIeDB
• C. Amazon DynamoDB
• D. Amazon RDS

Answer: C

Explanation:
Amazon DynamoDB is ideal for database applications that require very low latency and predictable performance at any scale but don’t need complex querying capabilities like joins or transactions. Amazon DynamoDB is a fully-managed NoSQL database service that offers high performance, predictable throughput and low cost. It is easy to set up, operate, and scale.
With Amazon DynamoDB, you can start small, specify the throughput and storage you need, and easily scale your capacity requirements on the fly. Amazon DynamoDB automatically partitions data over a
number of servers to meet your request capacity. In addition, DynamoDB automatically replicates your data synchronously across multiple Availability Zones within an AWS Region to ensure high-availability and data durability.
Reference: https://aws.amazon.com/running_databases/#dynamodb_anchor

NEW QUESTION 12
Can a user get a notification of each instance start / terminate configured with Auto Scaling?

• A. Yes, always
• B. No
• C. Yes, if configured with the Auto Scaling group
• D. Yes, if configured with the Launch Config

Answer: C

Explanation:
The user can get notifications using SNS if he has configured the notifications while creating the Auto Scaling group.
Reference: http://docs.aws.amazon.com/AutoScaIing/latest/DeveIoperGuide/GettingStartedTutoriaI.html

NEW QUESTION 13
Which of the following solutions is not supported by DynamoDB:

• A. Hash secondary index
• B. Local secondary index
• C. Hash Primary Key
• D. Global secondary index

Answer: A

Explanation:
In DynamoDB, a secondary index is a data structure that contains a subset of attributes from a table, along with an alternate key to support Query operations. DynamoDB supports the following two types of secondary indexes:
Local secondary index is an index that has the same hash key as the table, but a different range key. A local secondary index is "IocaI" in the sense that every partition of a local secondary index is scoped to a table partition that has the same hash key.
Global secondary index is an index with a hash and range key that can be different from those on the table. A global secondary index is considered "gIobaI" because queries on the index can span all of the data in a table, across all partitions.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModeI.html

NEW QUESTION 14
Games-R-Us is launching a new game app for mobile devices. Users will log into the game using their existing Facebook account and the game will record player data and scoring information directly to a DynamoDB table.
What is the most secure approach for signing requests to the DynamoDB API?

• A. Create an IAM user with access credentials that are distributed with the mobile app to sign the requests
• B. Distribute the AWS root account access credentials with the mobile app to sign the requests
• C. Request temporary security credentials using web identity federation to sign the requests
• D. Establish cross account access between the mobile app and the DynamoDB table to sign the requests

Answer: C

NEW QUESTION 15
In regards to Amazon SQS how can you secure the messages in your queues?

• A. You can't
• B. Amazon SQS uses either your Access Key ID or an X.509 certificate to authenticate your identity
• C. Through your IAM access keys
• D. Don't use root access

Answer: B

Explanation:
Authentication mechAMsms are provided to ensure that messages stored in Amazon SQS queues are secured against unauthorized access. Only the AWS account owners can access the queues they create. Amazon SQS uses proven cryptographic methods to authenticate your identity, either through the use of your Access Key ID and request signature, or through the use of an X.509 certificate.
Reference: https://aws.amazon.com/sqs/faqs/

NEW QUESTION 16
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