AWS-Certified-Developer-Associate Exam - Amazon AWS Certified Developer Associate

NEW QUESTION 1
Can you SSH to your private machines that reside in a VPC from outside without elastic IP?

• A. Yes, but only if you have direct connect or vpn
• B. Only if you are using a non-US region
• C. Only if you are using a US region
• D. No

Answer: A

Explanation: The instances that reside in the private subnets of your VPC are not reachable from the Internet, meAMng that is not possible to ssh into them. To interact with them you can use a bastion server, located in a public subnet, that will act as a proxy for them.
You can also connect if you have direct connect or vpn.
Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Scenario2.html

NEW QUESTION 2
Does AWS CIoudFormation support Amazon EC2 tagging?

• A. It depends if the Amazon EC2 tagging has been defined in the template.
• B. No, it doesn’t support Amazon EC2 tagging.
• C. No, CIoudFormation doesn’t support any tagging
• D. Yes, AWS CIoudFormation supports Amazon EC2 tagging

Answer: D

Explanation: In AWS CIoudFormation, Amazon EC2 resources that support the tagging feature can also be tagged in an AWS template. The tag values can refer to template parameters, other resource names, resource attribute values (e.g. addresses), or values computed by simple functions (e.g., a concatenated list of strings).
Reference: http://aws.amazon.com/c|oudformation/faqs/

NEW QUESTION 3
In regard to DynamoDB, which of the following statements is correct?

• A. An Item should have at least two value sets, a primary key and another attribute.
• B. An Item can have more than one attributes.
• C. A primary key should be single-valued.
• D. An attribute can have one or several other attribute

Answer: B

Explanation: In Amazon DynamoDB, a database is a collection of tables. A table is a collection of items and each item
is a collection of attributes.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModeI.html

NEW QUESTION 4
In regards to VPC, select the correct statement:

• A. You can associate multiple subnets with the same Route Table.
• B. You can associate multiple subnets with the same Route Table, but you can't associate a subnet with only one Route Table.
• C. You can't associate multiple subnets with the same Route Table.
• D. None of thes

Answer: A

Explanation: Every subnet in your VPC must be associated with exactly one Route Table. However, multiple subnets can be associated with the same Route Table.
Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Route_TabIes.html

NEW QUESTION 5
A user is uploading archives to Glacier. The user is trying to understand key Glacier resources. Which of the below mentioned options is not a Glacier resource?

• A. Notification configuration
• B. Archive ID
• C. Job
• D. Archive

Answer: B

Explanation: AWS Glacier has four resources. Vault and Archives are core data model concepts. Job is required to initiate download of archive. The notification configuration is required to send user notification when archive is available for download.
Reference: http://docs.aws.amazon.com/amazongIacier/latest/dev/amazon-glacier-data-model.html

NEW QUESTION 6
Which of the following services are key/value stores? Choose 3 answers

• A. Amazon EIastiCache
• B. Simple Notification Service
• C. DynamoDB
• D. Simple Workflow Service
• E. Simple Storage Service

Answer: ABC

NEW QUESTION 7
Can you configure an RDS Read Replica using CIoudFormation templates?

• A. Yes, provided that you have root access.
• B. Yes, when you create a new CIoudFormation template
• C. Yes, but not for all Regions.
• D. No, you can add the ReadRepIica only when the resource is made available by CIoudFormation

Answer: B

Explanation: AWS CIoudFormation gives developers and systems administrators an easy way to create and manage collections of AWS resources. You can now set Read Replicas for your databases with RDS when you create a new C|oudFormation tempIate.You can start using it with the sample template of C|oudFormation.
Reference:
https://s3.amazonaws.com/cloudformation-templates-us-east-1/RDS_MySQL_With_Read_RepIica.tempI

NEW QUESTION 8
You are providing AWS consulting services for a company developing a new mobile application that will be leveraging Amazon SNS Mobile Push for push notifications. In order to send direct notification messages to indMdual devices each device registration identifier or token needs to be registered with SNS; however the developers are not sure of the best way to do this.
You advise them to:

• A. Bulk upload the device tokens contained in a CSV file via the AWS Management Console.
• B. Let the push notification service (e.
• C. Amazon Device Messaging) handle the registration.
• D. Implement a token vending service to handle the registration.
• E. Call the CreatePIatformEndPoint API function to register multiple device token

Answer: B

NEW QUESTION 9
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 10
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 11
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 12
In regard to DynamoDB, for which one of the following parameters does Amazon not charge you?

• A. Cost per provisioned write units
• B. Cost per provisioned read units
• C. Storage cost
• D. I/O usage within the same Region

Answer: D

Explanation: In DynamoDB, you will be charged for the storage and the throughput you use rather than for the I/O which has been used.
Reference: http://aws.amazon.com/dynamodb/pricing/

NEW QUESTION 13
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 14
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 15
Company C has recently launched an online commerce site for bicycles on AWS. They have a "Product" DynamoDB table that stores details for each bicycle, such as, manufacturer, color, price, quantity and size to display in the online store. Due to customer demand, they want to include an image for each bicycle along with the existing details.
Which approach below provides the least impact to provisioned throughput on the "Product" table?

• A. Serialize the image and store it in multiple DynamoDB tables
• B. Create an "Images" DynamoDB table to store the Image with a foreign key constraint to the "Product" table
• C. Add an image data type to the "Product" table to store the images in binary format
• D. Store the images in Amazon S3 and add an S3 URL pointer to the "Product" table item for each image

Answer: D

NEW QUESTION 16
In regard to DynamoDB, can I delete local secondary indexes?

• A. Yes, if it is a primary hash key index
• B. No
• C. Yes, if it is a local secondary indexes
• D. Yes, if it is a Global secondary indexes

Answer: B

Explanation: In DynamoDB, an index cannot be modified once it is created. Reference: http://aws.amazon.com/dynamodb/faqs/#security_anchor

NEW QUESTION 17
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 18
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