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Free DBS-C01 Exam Braindumps (page: 16)

Page 16 of 82
PDF with 327 Questions

A gaming company has recently acquired a successful iOS game, which is particularly popular during the holiday season. The company has decided to add a leaderboard to the game that uses Amazon DynamoDB. The application load is expected to ramp up over the holiday season.
Which solution will meet these requirements at the lowest cost?

  1. DynamoDB Streams
  2. DynamoDB with DynamoDB Accelerator
  3. DynamoDB with on-demand capacity mode
  4. DynamoDB with provisioned capacity mode with Auto Scaling

Answer(s): D

Explanation:


Reference:

https://aws.amazon.com/blogs/database/running-spiky-workloads-and-optimizing-costs-by-more-than-90-using-amazon-dynamodb-on-demand-capacity-mode/?nc1=b_rp



A company’s Security department established new requirements that state internal users must connect to an existing Amazon RDS for SQL Server DB instance using their corporate Active Directory (AD) credentials. A Database Specialist must make the modifications needed to fulfill this requirement.
Which combination of actions should the Database Specialist take? (Choose three.)

  1. Disable Transparent Data Encryption (TDE) on the RDS SQL Server DB instance.
  2. Modify the RDS SQL Server DB instance to use the directory for Windows authentication. Create appropriate new logins.
  3. Use the AWS Management Console to create an AWS Managed Microsoft AD. Create a trust relationship with the corporate AD.
  4. Stop the RDS SQL Server DB instance, modify it to use the directory for Windows authentication, and start it again. Create appropriate new logins.
  5. Use the AWS Management Console to create an AD Connector. Create a trust relationship with the corporate AD.
  6. Configure the AWS Managed Microsoft AD domain controller Security Group.

Answer(s): B,C,F



A Database Specialist is performing a proof of concept with Amazon Aurora using a small instance to confirm a simple database behavior.
When loading a large dataset and creating the index, the Database Specialist encounters the following error message from Aurora:

ERROR: cloud not write block 7507718 of temporary file: No space left on device

What is the cause of this error and what should the Database Specialist do to resolve this issue?

  1. The scaling of Aurora storage cannot catch up with the data loading. The Database Specialist needs to modify the workload to load the data slowly.
  2. The scaling of Aurora storage cannot catch up with the data loading. The Database Specialist needs to enable Aurora storage scaling.
  3. The local storage used to store temporary tables is full. The Database Specialist needs to scale up the instance.
  4. The local storage used to store temporary tables is full. The Database Specialist needs to enable local storage scaling.

Answer(s): C

Explanation:


Reference:

https://serverfault.com/questions/109828/how-can-i-tune-postgres-to-avoid-this-error



A financial company wants to store sensitive user data in an Amazon Aurora PostgreSQL DB cluster. The database will be accessed by multiple applications across the company. The company has mandated that all communications to the database be encrypted and the server identity must be validated. Any non-SSL-based connections should be disallowed access to the database.

Which solution addresses these requirements?

  1. Set the rds.force_ssl=0 parameter in DB parameter groups. Download and use the Amazon RDS certificate bundle and configure the PostgreSQL connection string with sslmode=allow.
  2. Set the rds.force_ssl=1 parameter in DB parameter groups. Download and use the Amazon RDS certificate bundle and configure the PostgreSQL connection string with sslmode=disable.
  3. Set the rds.force_ssl=0 parameter in DB parameter groups. Download and use the Amazon RDS certificate bundle and configure the PostgreSQL connection string with sslmode=verify-ca.
  4. Set the rds.force_ssl=1 parameter in DB parameter groups. Download and use the Amazon RDS certificate bundle and configure the PostgreSQL connection string with sslmode=verify-full.

Answer(s): D


Reference:

https://forums.aws.amazon.com/message.jspa?messageID=734076



Page 16 of 82



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