[Dec 09, 2021] Get New AWS-Certified-Database-Specialty Certification – Valid Exam Dumps Questions
100% Passing Guarantee - Brilliant AWS-Certified-Database-Specialty Exam Questions PDF
Understanding functional and technical aspects of AWS Certified Database - Specialty Workload-Specific Database Design
The following will be discussed in AMAZON DBS-C01 dumps:
- Compare the costs of database solutions
- Select appropriate database services for specific types of data and workloads
- Design database solutions for performance, compliance, and scalability
- Determine strategies for disaster recovery and high availability
Conclusion
This AWS Certified Database – Speciality exam (DBS-C01) can help you grow professionally. It leads you to a prestigious certification that proves to bring a lot of opportunities. Enroll in the above courses and buy the books from Amazon to prepare well for the test. Also, practice as much as you can because practice makes a man perfect. Although such amount of information can be confusing for some people, if you dive deep in each domain using the mentioned resources, you will be able to ace the exam in one go.
NEW QUESTION 77
A company has a production Amazon Aurora Db cluster that serves both online transaction processing (OLTP) transactions and compute-intensive reports. The reports run for 10% of the total cluster uptime while the OLTP transactions run all the time. The company has benchmarked its workload and determined that a six-node Aurora DB cluster is appropriate for the peak workload.
The company is now looking at cutting costs for this DB cluster, but needs to have a sufficient number of nodes in the cluster to support the workload at different times. The workload has not changed since the previous benchmarking exercise.
How can a Database Specialist address these requirements with minimal user involvement?
- A. Set up automatic scaling on the DB cluster. This will allow the number of reader nodes to adjust automatically to the reporting workload, when needed.
- B. Split up the DB cluster into two different clusters: one for OLTP and the other for reporting. Monitor and set up replication between the two clusters to keep data consistent.
- C. Review all evaluate the peak combined workload. Ensure that utilization of the DB cluster node is at an acceptable level. Adjust the number of instances, if necessary.
- D. Use the stop cluster functionality to stop all the nodes of the DB cluster during times of minimal workload. The cluster can be restarted again depending on the workload at the time.
Answer: A
NEW QUESTION 78
A company has an ecommerce web application with an Amazon RDS for MySQL DB instance. The marketing team has noticed some unexpected updates to the product and pricing information on the website, which is impacting sales targets. The marketing team wants a database specialist to audit future database activity to help identify how and when the changes are being made.
What should the database specialist do to meet these requirements? (Choose two.)
- A. Enable Enhanced Monitoring on the DB instance.
- B. Enable auditing of CONNECT and QUERY_DML events.
- C. SSH to the DB instance and review the database logs.
- D. Publish the database logs to Amazon CloudWatch Logs.
- E. Create an RDS event subscription to the audit event type.
Answer: D,E
NEW QUESTION 79
A company is writing a new survey application to be used with a weekly televised game show. The application will be available for 2 hours each week. The company expects to receive over 500,000 entries every week, with each survey asking 2-3 multiple choice questions of each user. A Database Specialist needs to select a platform that is highly scalable for a large number of concurrent writes to handle he anticipated volume.
Which AWS services should the Database Specialist consider? (Choose two.)
- A. Amazon ElastiCache
- B. Amazon Redshift
- C. Amazon DynamoDB
- D. Amazon Elasticsearch Service
- E. Amazon Neptune
Answer: A,C
NEW QUESTION 80
A company has two separate AWS accounts: one for the business unit and another for corporate analytics. The company wants to replicate the business unit data stored in Amazon RDS for MySQL in us-east-1 to its corporate analytics Amazon Redshift environment in us-west-1. The company wants to use AWS DMS with Amazon RDS as the source endpoint and Amazon Redshift as the target endpoint.
Which action will allow AVS DMS to perform the replication?
- A. Configure the AWS DMS replication instance in the same account and Region as Amazon RDS.
- B. Configure the AWS DMS replication instance in its own account and in the same Region as Amazon Redshift.
- C. Configure the AWS DMS replication instance in the same account and Region as Amazon Redshift.
- D. Configure the AWS DMS replication instance in the same account as Amazon Redshift and in the same Region as Amazon RDS.
Answer: B
NEW QUESTION 81
An AWS CloudFormation stack that included an Amazon RDS DB instance was accidentally deleted and recent data was lost. A Database Specialist needs to add RDS settings to the CloudFormation template to reduce the chance of accidental instance data loss in the future.
Which settings will meet this requirement? (Choose three.)
- A. Set DeletionPolicy to Delete
- B. Set DeletionProtection to True
- C. Set DeletionPolicy to Retain
- D. Set TerminationProtection to True
- E. Set DeleteAutomatedBackups to False
- F. Set MultiAZ to True
Answer: B,C,D
NEW QUESTION 82
A Database Specialist needs to define a database migration strategy to migrate an on-premises Oracle database to an Amazon Aurora MySQL DB cluster. The company requires near-zero downtime for the data migration.
The solution must also be cost-effective.
Which approach should the Database Specialist take?
- A. Order an AWS Snowball appliance and copy the Oracle backup to the Snowball appliance. Once theSnowball data is delivered to Amazon S3, create a new Aurora DB cluster. Enable the S3 integration tomigrate the data directly from Amazon S3 to Amazon RDS.
- B. Use AWS Server Migration Service (AWS SMS) to import the Oracle virtual machine image as an AmazonEC2 instance. Use the Oracle Logical Dump utility to migrate the Oracle data from Amazon EC2 to anAurora DB cluster.
- C. Use the AWS Schema Conversion Tool (AWS SCT) to help rewrite database objects to MySQL during theschema migration. Use AWS DMS to perform the full load and change data capture (CDC) tasks.
- D. Dump all the tables from the Oracle database into an Amazon S3 bucket using datapump (expdp).
Rundata transformations in AWS Glue. Load the data from the S3 bucket to the Aurora DB cluster.
Answer: B
NEW QUESTION 83
A company is using a Single-AZ Amazon RDS for MySQL DB instance for development. The DB instance is experiencing slow performance when queries are executed. Amazon CloudWatch metrics indicate that the instance requires more I/O capacity.
Which actions can a database specialist perform to resolve this issue? (Choose two.)
- A. Increase the I/O parameter in Amazon RDS Enhanced Monitoring.
- B. Change to a database instance class with higher throughput.
- C. Convert from Single-AZ to Multi-AZ.
- D. Restart the application tool used to execute queries.
- E. Convert from General Purpose to Provisioned IOPS (PIOPS).
Answer: A,B
NEW QUESTION 84
A global digital advertising company captures browsing metadata to contextually display relevant images,pages, and links to targeted users. A single page load can generate multiple events that need to be storedindividually. The maximum size of an event is 200 KB and the average size is 10 KB. Each page load mustquery the user's browsing history to provide targeting recommendations. The advertising company expectsover 1 billion page visits per day from users in the United States, Europe, Hong Kong, and India. The structureof the metadata varies depending on the event. Additionally, the browsing metadata must be written and readwith very low latency to ensure a good viewing experience for the users.
Which database solution meets these requirements?
- A. Amazon Aurora Global Database
- B. Amazon DynamoDB global table
- C. Amazon RDS Multi-AZ deployment
- D. Amazon DocumentDB
Answer: B
NEW QUESTION 85
A company is hosting critical business data in an Amazon Redshift cluster. Due to the sensitive nature of the data, the cluster is encrypted at rest using AWS KMS. As a part of disaster recovery requirements, the company needs to copy the Amazon Redshift snapshots to another Region.
Which steps should be taken in the AWS Management Console to meet the disaster recovery requirements?
- A. Create a new KMS customer master key in the source Region. Switch to the destination Region, enable Amazon Redshift cross-Region snapshots, and use the KMS key of the source Region.
- B. Create a new IAM role with access to the KMS key. Enable Amazon Redshift cross-Region replication using the new IAM role, and use the KMS key of the source Region.
- C. Create a new KMS customer master key in the destination Region and create a new IAM role with access to the new KMS key. Enable Amazon Redshift cross-Region replication in the source Region and use the KMS key of the destination Region.
- D. Enable Amazon Redshift cross-Region snapshots in the source Region, and create a snapshot copy grant and use a KMS key in the destination Region.
Answer: A
NEW QUESTION 86
A company wants to migrate its existing on-premises Oracle database to Amazon Aurora PostgreSQL. The migration must be completed with minimal downtime using AWS DMS. A Database Specialist must validate that the data was migrated accurately from the source to the target before the cutover. The migration must have minimal impact on the performance of the source database.
Which approach will MOST effectively meet these requirements?
- A. Enable the AWS Schema Conversion Tool (AWS SCT) premigration validation and review the premigrationchecklist to make sure there are no issues with the conversion.
- B. Use the AWS Schema Conversion Tool (AWS SCT) to convert source Oracle database schemas to the target Aurora DB cluster. Verify the datatype of the columns.
- C. Enable AWS DMS data validation on the task so the AWS DMS task compares the source and targetrecords, and reports any mismatches.
- D. Use the table metrics of the AWS DMS task created for migrating the data to verify the statistics for the tables being migrated and to verify that the data definition language (DDL) statements are completed.
Answer: C
NEW QUESTION 87
A startup company is building a new application to allow users to visualize their on-premises and cloud networking components. The company expects billions of components to be stored and requires responses in milliseconds. The application should be able to identify:
The networks and routes affected if a particular component fails.
The networks that have redundant routes between them.
The networks that do not have redundant routes between them.
The fastest path between two networks.
Which database engine meets these requirements?
- A. Amazon Aurora MySQL
- B. Amazon ElastiCache for Redis
- C. Amazon DynamoDB
- D. Amazon Neptune
Answer: D
NEW QUESTION 88
A gaming company wants to deploy a game in multiple Regions. The company plans to save local high scores in Amazon DynamoDB tables in each Region. A Database Specialist needs to design a solution to automate the deployment of the database with identical configurations in additional Regions, as needed. The solution should also automate configuration changes across all Regions.
Which solution would meet these requirements and deploy the DynamoDB tables?
- A. Create DynamoDB tables using the AWS Management Console in all the Regions and create a step-bystep guide for future deployments.
- B. Create an AWS CloudFormation template and deploy the template to all the Regions.
- C. Create an AWS CLI command to deploy the DynamoDB table to all the Regions and save it for future deployments.
- D. Create an AWS CloudFormation template and use a stack set to deploy the template to all the Regions.
Answer: B
NEW QUESTION 89
A company is developing a new web application. An AWS CloudFormation template was created as a part of the build process.
Recently, a change was made to an AWS::RDS::DBInstance resource in the template. The CharacterSetName property was changed to allow the application to process international text. A change set was generated using the new template, which indicated that the existing DB instance should be replaced during an upgrade.
What should a database specialist do to prevent data loss during the stack upgrade?
- A. Modify the stack policy using the aws cloudformation update-stack command and the set-stack-policy command, then make the DB resource protected.
- B. Deactivate any applications that are using the DB instance. Create a snapshot of the DB instance. Modify the template to add the DBSnapshotIdentifier property with the ID of the DB snapshot. Update the stack and reactivate the applications.
- C. Create a snapshot of the DB instance. Modify the template to add the DBSnapshotIdentifier property with the ID of the DB snapshot. Update the stack.
- D. Create a snapshot of the DB instance. Update the stack. Restore the database to a new instance.
Answer: B
NEW QUESTION 90
A Database Specialist is setting up a new Amazon Aurora DB cluster with one primary instance and three Aurora Replicas for a highly intensive, business-critical application. The Aurora DB cluster has one mediumsized primary instance, one large-sized replica, and two medium sized replicas. The Database Specialist did not assign a promotion tier to the replicas.
In the event of a primary failure, what will occur?
- A. Aurora will not promote an Aurora Replica
- B. Aurora will promote an arbitrary Aurora Replica
- C. Aurora will promote the largest-sized Aurora Replica
- D. Aurora will promote an Aurora Replica that is of the same size as the primary instance
Answer: D
NEW QUESTION 91
A company is closing one of its remote data centers. This site runs a 100 TB on-premises data warehouse solution. The company plans to use the AWS Schema Conversion Tool (AWS SCT) and AWS DMS for the migration to AWS. The site network bandwidth is 500 Mbps. A Database Specialist wants to migrate the on-premises data using Amazon S3 as the data lake and Amazon Redshift as the data warehouse. This move must take place during a 2-week period when source systems are shut down for maintenance. The data should stay encrypted at rest and in transit.
Which approach has the least risk and the highest likelihood of a successful data transfer?
- A. Leverage AWS SCT and apply the converted schema to Amazon Redshift. Start an AWS DMS task withtwo AWS Snowball Edge devices to copy data from on-premises to Amazon S3 with AWS KMS encryption.Use AWS DMS to finish copying data to Amazon Redshift.
- B. Set up a VPN tunnel for encrypting data over the network from the data center to AWS. Leverage a nativedatabase export feature to export the data and compress the files. Use the aws S3 cp multi-port uploadcommand to upload these files to Amazon S3 with AWS KMS encryption. Once complete, load the data toAmazon Redshift using AWS Glue.
- C. Set up a VPN tunnel for encrypting data over the network from the data center to AWS. Leverage AWSSCT and apply the converted schema to Amazon Redshift. Once complete, start an AWS DMS task tomove the data from the source to Amazon S3. Use AWS Glue to load the data from Amazon S3 to AmazonRedshift.
- D. Leverage AWS SCT and apply the converted schema to Amazon Redshift. Once complete, use a fleet of10 TB dedicated encrypted drives using the AWS Import/Export feature to copy data from on-premises toAmazon S3 with AWS KMS encryption. Use AWS Glue to load the data to Amazon redshift.
Answer: D
NEW QUESTION 92
A company is running an on-premises application comprised of a web tier, an application tier, and a MySQL database tier. The database is used primarily during business hours with random activity peaks throughout the day. A database specialist needs to improve the availability and reduce the cost of the MySQL database tier as part of the company's migration to AWS.
Which MySQL database option would meet these requirements?
- A. Amazon RDS for MySQL with read replica
- B. Amazon Aurora MySQL cluster
- C. Amazon Aurora Serverless MySQL cluster
- D. Amazon RDS for MySQL with Multi-AZ
Answer: B
NEW QUESTION 93
A gaming company is designing a mobile gaming app that will be accessed by many users across the globe. The company wants to have replication and full support for multi-master writes. The company also wants to ensure low latency and consistent performance for app users.
Which solution meets these requirements?
- A. Use Amazon Aurora for storage and enable cross-Region Aurora Replicas
- B. Use Amazon Neptune for storage
- C. Use Amazon Aurora for storage and cache the user content with Amazon ElastiCache
- D. Use Amazon DynamoDB global tables for storage and enable DynamoDB automatic scaling
Answer: D
NEW QUESTION 94
An online shopping company has a large inflow of shopping requests daily. As a result, there is a consistent load on the company's Amazon RDS database. A database specialist needs to ensure the database is up and running at all times. The database specialist wants an automatic notification system for issues that may cause database downtime or for configuration changes made to the database.
What should the database specialist do to achieve this? (Choose two.)
- A. Enable email notifications for AWS Trusted Advisor.
- B. Use Amazon SES to send notifications based on configured Amazon CloudWatch Events events.
- C. Create an Amazon CloudWatch Events event to send a notification using Amazon SNS on every API call logged in AWS CloudTrail.
- D. Subscribe to an RDS event subscription and configure it to use an Amazon SNS topic to send notifications.
- E. Configure Amazon CloudWatch alarms on various metrics, such as FreeStorageSpace for the RDS instance.
Answer: B,D
NEW QUESTION 95
A company is looking to migrate a 1 TB Oracle database from on-premises to an Amazon Aurora PostgreSQL DB cluster. The company's Database Specialist discovered that the Oracle database is storing 100 GB of large binary objects (LOBs) across multiple tables. The Oracle database has a maximum LOB size of 500 MB with an average LOB size of 350 MB. The Database Specialist has chosen AWS DMS to migrate the data with the largest replication instances.
How should the Database Specialist optimize the database migration using AWS DMS?
- A. Create a single task using limited LOB mode with a maximum LOB size of 500 MB to migrate data andLOBs together
- B. Create two tasks: task1 with LOB tables using limited LOB mode with a maximum LOB size of 500 MB andtask 2 without LOBs
- C. Create a single task using full LOB mode with a LOB chunk size of 500 MB to migrate the data and LOBstogether
- D. Create two tasks: task1 with LOB tables using full LOB mode with a LOB chunk size of 500 MB and task2without LOBs
Answer: B
NEW QUESTION 96
A company is planning to close for several days. A Database Specialist needs to stop all applications along with the DB instances to ensure employees do not have access to the systems during this time. All databases are running on Amazon RDS for MySQL.
The Database Specialist wrote and executed a script to stop all the DB instances. When reviewing the logs, the Database Specialist found that Amazon RDS DB instances with read replicas did not stop.
How should the Database Specialist edit the script to fix this issue?
- A. Stop the read replicas before stopping their source instances
- B. Stop the source instances before stopping their read replicas
- C. Use the AWS CLI to stop each read replica and source instance at the same time
- D. Delete each read replica before stopping its corresponding source instance
Answer: C
NEW QUESTION 97
An ecommerce company has tasked a Database Specialist with creating a reporting dashboard that visualizes critical business metrics that will be pulled from the core production database running on Amazon Aurora.
Data that is read by the dashboard should be available within 100 milliseconds of an update.
The Database Specialist needs to review the current configuration of the Aurora DB cluster and develop a cost-effective solution. The solution needs to accommodate the unpredictable read workload from the reporting dashboard without any impact on the write availability and performance of the DB cluster.
Which solution meets these requirements?
- A. Turn on the serverless option in the DB cluster so it can automatically scale based on demand.
- B. Create a separate DB cluster for the new workload, refresh from the source DB cluster, and set up ongoingreplication using AWS DMS change data capture (CDC).
- C. Add an automatic scaling policy to the DB cluster to add Aurora Replicas to the cluster based on CPUconsumption.
- D. Provision a clone of the existing DB cluster for the new Application team.
Answer: A
NEW QUESTION 98
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?
- A. Use Aurora Replicas. From the master automatic pause compute capacity option, create replicas for eachdevelopment group, and promote each replica to master. Delete the replicas at the end of the developmentcycle.
- B. Use the Aurora DB cloning feature. Deploy a single development and test Aurora DB instance, and createclone instances for the development groups. Delete the clones at the end of the development cycle.
- C. Use Aurora Serverless. Restore current Aurora snapshot and deploy to a serverless cluster for eachdevelopment group. Enable the option to pause the compute capacity on the cluster and set an appropriatetimeout.
- D. 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.
Answer: C
NEW QUESTION 99
A database specialist is managing an application in the us-west-1 Region and wants to set up disaster recovery in the us-east-1 Region. The Amazon Aurora MySQL DB cluster needs an RPO of 1 minute and an RTO of 2 minutes.
Which approach meets these requirements with no negative performance impact?
- A. Enable asynchronous binlog replication.
- B. Enable synchronous replication.
- C. Copy Aurora incremental snapshots to the us-east-1 Region.
- D. Create an Aurora Global Database.
Answer: B
NEW QUESTION 100
An Amazon RDS EBS-optimized instance with Provisioned IOPS (PIOPS) storage is using less than half of its allocated IOPS over the course of several hours under constant load. The RDS instance exhibits multi-second read and write latency, and uses all of its maximum bandwidth for read throughput, yet the instance uses less than half of its CPU and RAM resources.
What should a Database Specialist do in this situation to increase performance and return latency to sub-second levels?
- A. Increase the size of the DB instance storage
- B. Change the underlying EBS storage type to General Purpose SSD (gp2)
- C. Disable EBS optimization on the DB instance
- D. Change the DB instance to an instance class with a higher maximum bandwidth
Answer: B
NEW QUESTION 101
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