Top Tips Of Leading DVA-C01 Training Tools

NEW QUESTION 1
A user had defined an IAM policy similar to the one given below on a bucket:
{
"Version": "2012-10-17",
"Statement": [{
"Effect": "A||ow",
"PrincipaI": {
"AWS": "arn:aws:iam::12112112:user/test"
}!
"Action": [ "s3:GetBucketLocation", "s3:ListBucket", "s3:GetObject"
]!
"Resource": [ "arn:aws:s3:::examkiI|er"
}
}
What will this do?

• A. It will result in an error saying invalid policy statement
• B. It will create an IAM policy for the user test
• C. Allows the user test of the AWS account ID 12112112 to perform GetBucketLocation, ListBucket and GetObject on the bucket examkiller
• D. It will allow all the IAM users of the account ID 12112112 to perform GetBucketLocation, ListBucket and GetObject on bucket examkiller

Answer: C

Explanation:
The IAM policy allows to test a user in the account 12112112 to perform: s3:GetBucketLocation
s3:ListBucket s3:GetObject
Amazon S3 permissions on the examkiller bucket.
Reference: http://docs.aws.amazon.com/AmazonS3/Iatest/dev/access-policy-language-overview.html

NEW QUESTION 2
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 3
What kind of service is provided by AWS DynamoDB?

• A. Relational Database
• B. NoSQL Database
• C. Dynamic Database
• D. Document Database

Answer: B

Explanation:
DynamoDB is a fast, fully managed NoSQL database service. Reference: http://aws.amazon.com/dynamodb/

NEW QUESTION 4
In relation to Amazon SQS, how can you ensure that messages are delivered in order?

• A. Increase the size of your queue
• B. Send them with a timestamp
• C. Give each message a unique id.
• D. AWS cannot guarantee that you will receive messages in the exact order you sent them

Answer: D

Explanation:
Amazon SQS makes a best effort to preserve order in messages, but due to the distributed nature of the queue, AWS cannot guarantee that you will receive messages in the exact order you sent them. You typically place sequencing information or timestamps in your messages so that you can reorder them upon receipt.
Reference: https://aws.amazon.com/items/1343?externaI|D=1343

NEW QUESTION 5
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 6
In regards to Amazon SQS how many times will you receive each message?

• A. At least twice
• B. Exactly once
• C. As many times as you want
• D. At least once

Answer: D

Explanation:
Amazon SQS is engineered to provide "at least once" delivery of all messages in its queues. Although most of the time, each message will be delivered to your application exactly once, you should design your system so that processing a message more than once does not create any errors or inconsistencies. Reference: https://aws.amazon.com/sqs/faqs/

NEW QUESTION 7
Company D is running their corporate website on Amazon S3 accessed from http//www.companyd.com. Their marketing team has published new web fonts to a separate S3 bucket accessed by the S3 endpoint https://s3-us-westl.amazonaws.com/cdfonts. While testing the new web fonts, Company D recognized the web fonts are being blocked by the browser. What should Company D do to prevent the web fonts from being blocked by the browser?

• A. Enable versioning on the cdfonts bucket for each web font
• B. Create a policy on the cdfonts bucket to enable access to everyone
• C. Add the Content-NI D5 header to the request for webfonts in the cdfonts bucket from the website
• D. Configure the cdfonts bucket to allow cross-origin requests by creating a CORS configuration

Answer: D

NEW QUESTION 8
Which of the below mentioned options is a must to have an element as a part of the IAM policy?

• A. Condition
• B. ID
• C. Statement
• D. Version

Answer: C

Explanation:
The statement is the main element of the IAM policy and it is a must for a policy. Elements such as condition, version and ID are not required.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/AccessPoIicyLanguage_EIementDescriptions.html

NEW QUESTION 9
What happens, by default, when one of the resources in a CIoudFormation stack cannot be created?

• A. Previously-created resources are kept but the stack creation terminates.
• B. Previously-created resources are deleted and the stack creation terminates.
• C. The stack creation continues, and the final results indicate which steps failed.
• D. CIoudFormation templates are parsed in advance so stack creation is guaranteed to succee

Answer: B

NEW QUESTION 10
An Amazon S3 bucket, "myawsbucket" is configured with website hosting in Tokyo region, what is the region-specific website endpoint?

• A. www.myawsbucket.ap-northeast-1.amazonaws.com
• B. myawsbucket.s3-website-ap-northeast-I.amazonawscom
• C. myawsbucket.amazonaws.com
• D. myawsbucket.tokyo.amazonaws.com

Answer: B

NEW QUESTION 11
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 12
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 13
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 14
A user has setup Multi AZ with the MS SQL RDS instance. Which of the below mentioned functionalities can be achieved by the user?

• A. High availability
• B. Scalability
• C. MS SQL does not support Multi AZ
• D. Disaster recovery

Answer: C

Explanation:
The Multi AZ feature allows the user to achieve High Availability. MS SQL does not support Multi AZ. Reference: https://aws.amazon.com/rds/faqs/#36

NEW QUESTION 15
Which of the below mentioned options is not a best practice to securely manage the AWS access credentials?

• A. Enable MFA for prMleged users
• B. Create indMdual IAM users
• C. Keep rotating your secure access credentials at regular intervals
• D. Create strong access key and secret access key and attach to the root account

Answer: D

Explanation:
It is a recommended approach to avoid using the access and secret access keys of the root account.
Thus, do not download or delete it. Instead make the IAM user as powerful as the root account and use its credentials. The user cannot generate their own access and secret access keys as they are always generated by AWS.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/IAMBestPractices.html

NEW QUESTION 16
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