A Review Of Best Quality DVA-C01 Questions

NEW QUESTION 1
ExamKiIIer has three AWS accounts. They have created separate IAM users within each account. ExamKiIIer wants a single IAM console URL such as https://examkiIIer.signin.aws.amazon.com/consoIe/ for all account users. How can this be achieved?

• A. Merge all the accounts with consolidated billing
• B. Create the same account alias with each account ID
• C. It is not possible to have the same IAM account login URL for separate AWS accounts
• D. Create the S3 bucket with an alias name and use the redirect rule to forward requests to various accounts

Answer: C

Explanation:
If a user wants the URL of the AWS IAM sign-in page to have a company name instead of the AWS account ID, he can create an alias for his AWS account ID. The alias should be unique.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/AccountAIias.html

NEW QUESTION 2
A user is trying to create a list of IAM users with the AWS console. When the IAM users are created which of the below mentioned credentials will be enabled by default for the user?

• A. IAM access key and secret access key
• B. IAM X.509 certificates
• C. Nothin
• D. Everything is disabled by default
• E. IAM passwords

Answer: C

Explanation:
Newly created IAM users have no password and no access key (access key ID and secret access key). If the user needs to administer your AWS resources using the AWS Management Console, you can create
a password for the user. If the user needs to interact with AWS programmatically (using the command line interface (CLI), the AWS SDK, or service-specific APIs), you can create an access key for that user. The credentials you create for users are what they use to uniquely identify themselves to AWS.
Reference: http://docs.aws.amazon.com/IAM/|atest/UserGuide/Using_WorkingWithGroupsAndUsers.htmI

NEW QUESTION 3
How long can you keep your Amazon SQS messages in Amazon SQS queues?

• A. From 120 secs up to 4 weeks
• B. From 10 secs up to 7 days
• C. From 60 secs up to 2 weeks
• D. From 30 secs up to 1 week

Answer: C

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 4
A user has launched a MySQL RDS. The user wants to plan for the DR and automate the snapshot. Which of the below mentioned functionality offers this option with RDS?

• A. Copy snapshot
• B. Automated synchronization
• C. Snapshot
• D. Automated backup

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.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAmazonR DSInstances.htmI

NEW QUESTION 5
Which of the following is chosen as the default region when making an API call with an AWS SDK?

• A. ap-northeast-1
• B. us-west-2
• C. us-east-1
• D. eu-west-1
• E. us-central-1

Answer: C

NEW QUESTION 6
A root account owner is trying to setup an additional level of security for all his IAM users. Which of the below mentioned options is a recommended solution for the account owner?

• A. Enable access key and secret access key for all the IAM users
• B. Enable MFA for all IAM users
• C. Enable the password for all the IAM users
• D. Enable MFA for the root account

Answer: B

Explanation:
Multi-Factor Authentication adds an extra level of security for all the users. The user can enable MFA for all IAM users which ensures that each user has to provide an extra six digit code for authentication. Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/Using_ManagingMFA.htmI

NEW QUESTION 7
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 8
Which of the following are valid arguments for an SNS Publish request? Choose 3 answers

• A. TopicAm
• B. Subject
• C. Destination
• D. Format
• E. Message F.Language

Answer: ABE

NEW QUESTION 9
An orgAMzation has created 10 IAM users. The orgAMzation wants those users to work independently and access AWS. Which of the below mentioned options is not a possible solution?

• A. Create the access key and secret access key for each user and provide access to AWS using the console
• B. Create the X.509 certificate for each user and provide them access to AWS CLI
• C. Enable MFA for each IAM user and assign them the virtual MFA device to access the console
• D. Provide each user with the IAM login and password for the AWS console

Answer: A

Explanation:
If an orgAMzation has created the IAM users, the users can access AWS services either with an IAM specific login/password or console. The orgAMzation can generate the IAM X.509 certificates to access AWS with CLI. The orgAMzation can also enable MFA for each IAM user, which allows an added security for each IAM user. If the orgAMzation has created the access key and secret key than the user cannot access the console using those keys. Access key and secret access key are useful for CLI or
Webservices.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/IAM_Introduction.htm|

NEW QUESTION 10
How can software determine the public and private IP addresses of the Amazon EC2 instance that it is running on?

• A. Query the appropriate Amazon CIoudWatch metric.
• B. Use ipconfig or ifconfig command.
• C. Query the local instance userdata.
• D. Query the local instance metadat

Answer: D

NEW QUESTION 11
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 12
A user is creating a new EBS volume from an existing snapshot. The snapshot size shows 10 GB. Can the user create a volume of 30 GB from that snapshot?

• A. Provided the original volume has set the change size attribute to true
• B. Yes
• C. Provided the snapshot has the modify size attribute set as true
• D. No

Answer: B

Explanation:
A user can always create a new EBS volume of a higher size than the original snapshot size. The user cannot create a volume of a lower size. When the new volume is created the size in the instance will be shown as the original size. The user needs to change the size of the device with resize2fs or other OS specific commands.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-expand-volume.htmI

NEW QUESTION 13
A user has attached an EBS volume to a running Linux instance as a "/dev/sdf" device. The user is unable to see the attached device when he runs the command "df -h". What is the possible reason for this?

• A. The volume is not in the same AZ of the instance
• B. The volume is not formatted
• C. The volume is not attached as a root device
• D. The volume is not mounted

Answer: D

Explanation:
When a user creates an EBS volume and attaches it as a device, it is required to mount the device. If the device/volume is not mounted it will not be available in the listing.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AmazonEBS.htmI

NEW QUESTION 14
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 15
A user is trying to share a video file with all his friends. Which of the below mentioned AWS services will be cheapest and easy to use?

• A. AWS S3
• B. AWS EC2
• C. AWS RRS
• D. AWS Glacier

Answer: C

Explanation:
AWS RRS provides the same functionality as AWS S3, but at a cheaper rate. It is ideally suited for non mission critical applications. It provides less durability than S3, but is a cheaper option.
Reference: http://docs.aws.amazon.com/AmazonS3/Iatest/dev/UsingRRS.htmI

NEW QUESTION 16
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