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Amazon AWS Certified Database - Specialty AWS Certified Database - Specialty Dumps in PDF

Free Amazon AWS Certified Database - Specialty Real Questions (page: 39)

AWS Certified Database - Specialty PDF — 359 Questions

A company is looking to move an on-premises IBM Db2 database running AIX on an IBM POWER7 server. Due to escalating support and maintenance costs, the company is exploring the option of moving the workload to an Amazon Aurora PostgreSQL DB cluster.
What is the quickest way for the company to gather data on the migration compatibility?

  1. Perform a logical dump from the Db2 database and restore it to an Aurora DB cluster. Identify the gaps and compatibility of the objects migrated by comparing row counts from source and target tables.
  2. Run AWS DMS from the Db2 database to an Aurora DB cluster. Identify the gaps and compatibility of the objects migrated by comparing the row counts from source and target tables.
  3. Run native PostgreSQL logical replication from the Db2 database to an Aurora DB cluster to evaluate the migration compatibility.
  4. Run the AWS Schema Conversion Tool (AWS SCT) from the Db2 database to an Aurora DB cluster. Create a migration assessment report to evaluate the migration compatibility.

Answer(s): D


Reference:

https://docs.aws.amazon.com/SchemaConversionTool/latest/userguide/Schema-Conversion- Tool.pdf



An ecommerce company is using Amazon DynamoDB as the backend for its order-processing application. Thesteady increase in the number of orders is resulting in increased DynamoDB costs. Order verification and reporting perform many repeated GetItem functions that pull similar datasets, and this read activity is contributing to the increased costs. The company wants to control these costs without significant development efforts.
How should a Database Specialist address these requirements?

  1. Use AWS DMS to migrate data from DynamoDB to Amazon DocumentDB
  2. Use Amazon DynamoDB Streams and Amazon Kinesis Data Firehose to push the data into Amazon Redshift
  3. Use an Amazon ElastiCache for Redis in front of DynamoDB to boost read performance
  4. Use DynamoDB Accelerator to offload the reads

Answer(s): D



An IT consulting company wants to reduce costs when operating its development environment databases. The company’s workflow creates multiple Amazon Aurora MySQL DB clusters for each development group. The Aurora DB clusters are only used for 8 hours a day. The DB clusters can then be deleted at the end of the development cycle, which lasts 2 weeks.
Which of the following provides the MOST cost-effective solution?

  1. Use AWS CloudFormation templates. Deploy a stack with the DB cluster for each development group. Delete the stack at the end of the development cycle.
  2. Use the Aurora DB cloning feature. Deploy a single development and test Aurora DB instance, and create clone instances for the development groups. Delete the clones at the end of the development cycle.
  3. Use Aurora Replicas. From the master automatic pause compute capacity option, create replicas for each development group, and promote each replica to master. Delete the replicas at the end of the development cycle.
  4. Use Aurora Serverless. Restore current Aurora snapshot and deploy to a serverless cluster for each development group. Enable the option to pause the compute capacity on the cluster and set an appropriate timeout.

Answer(s): D



A company has multiple applications serving data from a secure on-premises database. The company is migrating all applications and databases to the AWS Cloud. The IT Risk and Compliance department requires that auditing be enabled on all secure databases to capture all log ins, log outs, failed logins, permission changes, and database schema changes. A Database Specialist has recommended Amazon Aurora MySQL as the migration target, and leveraging the Advanced Auditing feature in Aurora.

Which events need to be specified in the Advanced Auditing configuration to satisfy the minimum auditing requirements? (Choose three.)

  1. CONNECT
  2. QUERY_DCL
  3. QUERY_DDL
  4. QUERY_DML
  5. TABLE
  6. QUERY

Answer(s): A,B,C

Explanation:


Reference:

https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraMySQL.Auditing.html



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



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