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Preparation Sources and Resources

Following the official study guide related to the Amazon DBS-C01 exam is an excellent way to diversify your entire preparation strategy and pass the test. These are the preparation steps that are vital in order to complete the Amazon AWS Certified Database – Specialty exam.

  • Training Course

    The candidates can also go for the AWS training programs. So, it is great to know that Amazon offers the opportunity to opt for this preparation variant. Joining this training program will help the applicants gain the skills and knowledge of the exam content.

  • Books and Guides

    The books and study guides should be your next step in your preparation guide. You need to find the material that is enriched with updated information.

  • Official Website

    The official website offers a lot of reliable resources and information that is extremely useful in preparing for the test. These available materials include study guides, documentations, whitepapers, FAQs, sample papers, and more.

  • Practice Tests

    The potential candidates can also take practice tests. With the help of the AWS Database Specialty Practice Exam, you will be sure of your preparation. By using this tool, you will be able to find out your weak areas so that you can work on them and fulfill the knowledge gaps. Besides the vendor’s website, you can observe other platforms that provide you with practice tests.

How can you get ready for the AWS Certified Database Specialty Certification Exam

There is a study guide for the AWS Certified Database Specialty Certification Exam

Here is our instant guide if you don't have time to read all the page

AWS offers the beta version of a certification specially designed for manufacturers with extensive experience with AWS databases. These are the details that you must be among the first to obtain the specialty certification of the AWS certified database.AWS Certified Database Specialty certification validates a comprehensive understanding of the scope of AWS database services and how to accelerate the use of database technology to drive business transformation in your organization. The certification covers complete database concepts that include design, migration, implementation, access, maintenance, automation, monitoring, security, and troubleshooting.This is the first AWS certification that focuses specifically on experience with database technology. The variety of databases has increased for AWS customers, creating a demand for new skills to design and recommend AWS database solutions tailored to specific workloads. With this certification, there is now a recognized diploma in the sector to validate this differentiated experience.

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Amazon AWS Certified Database - Specialty (DBS-C01) Exam Sample Questions (Q238-Q243):

NEW QUESTION # 238
An electric utility company wants to store power plant sensor data in an Amazon DynamoDB table. The utility company has over 100 power plants and each power plant has over 200 sensors that send data every 2 seconds.
The sensor data includes time with milliseconds precision, a value, and a fault attribute if the sensor is malfunctioning. Power plants are identified by a globally unique identifier. Sensors are identified by a unique identifier within each power plant. A database specialist needs to design the table to support an efficient method of finding all faulty sensors within a given power plant.
Which schema should the database specialist use when creating the DynamoDB table to achieve the fastest query time when looking for faulty sensors?

  • A. Use the plant identifier as the partition key and the measurement time as the sort key. Create a global secondary index (GSI) with the plant identifier as the partition key and the fault attribute as the sort key.
  • B. Create a composite of the plant identifier and sensor identifier as the partition key. Use the measurement time as the sort key. Create a local secondary index (LSI) on the fault attribute.
  • C. Create a composite of the plant identifier and sensor identifier as the partition key. Use the measurement time as the sort key. Create a global secondary index (GSI) with the plant identifier as the partition key and the fault attribute as the sort key.
  • D. Use the plant identifier as the partition key and the sensor identifier as the sort key. Create a local secondary index (LSI) on the fault attribute.

Answer: D

Explanation:
Explanation
Plant id as partition key and Sensor id as a sort key. Fault can be identified quickly using the local secondary index and associated plant and sensor can be identified easily.


NEW QUESTION # 239
A company has a 20 TB production Amazon Aurora DB cluster. The company runs a large batch job overnight to load data into the Aurora DB cluster. To ensure the company's development team has the most up-to-date data for testing, a copy of the DB cluster must be available in the shortest possible time after the batch job completes.
How should this be accomplished?

  • A. Set up a new daily AWS DMS task that will use cloning and change data capture (CDC) on the DB cluster to copy the data to a new DB cluster. Set up a time for the AWS DMS stream to stop when the new cluster is current.
  • B. Use the AWS CLI to schedule a manual snapshot of the DB cluster. Restore the snapshot to a new DB cluster using the AWS CLI.
  • C. Schedule a job to create a clone of the DB cluster at the end of the overnight batch process.
  • D. Create a dump file from the DB cluster. Load the dump file into a new DB cluster.

Answer: C


NEW QUESTION # 240
A business's production database is hosted on a single-node Amazon RDS for MySQL DB instance. The database instance is hosted in a United States AWS Region.
A week before a significant sales event, a fresh database maintenance update is released. The maintenance update has been designated as necessary. The firm want to minimize the database instance's downtime and requests that a database expert make the database instance highly accessible until the sales event concludes.
Which solution will satisfy these criteria?

  • A. Create a read replica with the latest update. Initiate a failover before the sales event.
  • B. Create a read replica with the latest update. Transfer all read-only traffic to the read replica during the sales event.
  • C. Defer the maintenance update until the sales event is over.
  • D. Convert the DB instance into a Multi-AZ deployment. Apply the maintenance update.

Answer: D

Explanation:
https://aws.amazon.com/premiumsupport/knowledge-center/rds-required-maintenance/


NEW QUESTION # 241
Amazon Neptune is being used by a corporation as the graph database for one of its products. During an ETL procedure, the company's data science team produced enormous volumes of temporary data by unintentionally. The Neptune DB cluster extended its storage capacity automatically to handle the added data, but the data science team erased the superfluous data.
What should a database professional do to prevent incurring extra expenditures for cluster volume space that is not being used?

  • A. Export the cluster data into a new Neptune DB cluster.
  • B. Use the AWS CLI to turn on automatic resizing of the cluster volume.
  • C. Take a snapshot of the cluster volume. Restore the snapshot in another cluster with a smaller volume size.
  • D. Add a Neptune read replica to the cluster. Promote this replica as a new primary DB instance. Reset the storage space of the cluster.

Answer: A

Explanation:
Explanation
The only way to shrink the storage space used by your DB cluster when you have a large amount of unused allocated space is to export all the data in your graph and then reload it into a new DB cluster. Creating and restoring a snapshot does not reduce the amount of storage allocated for your DB cluster, because a snapshot retains the original image of the cluster's underlying storage.


NEW QUESTION # 242
A financial services company runs an on-premises MySQL database for a critical application. The company is dissatisfied with its current database disaster recovery (DR) solution. The application experiences a significant amount of downtime whenever the database fails over to its DR facility. The application also experiences slower response times when reports are processed on the same database. To minimize the downtime in DR situations, the company has decided to migrate the database to AWS. The company requires a solution that is highly available and the most cost-effective.
Which solution meets these requirements?

  • A. Create an Amazon Aurora DB cluster and configure an Aurora Replica in a different Availability Zone. Configure the application to reference the cluster endpoint and report queries to reference the reader endpoint.
  • B. Create an Amazon RDS for MySQL Multi-AZ DB instance and configure a read replica in a different Availability Zone. Configure the application to reference the replica instance endpoint and report queries to reference the primary DB instance endpoint.
  • C. Create an Amazon Aurora DB cluster and configure an Aurora Replica in a different Availability Zone. Configure the application to reference the primary DB instance endpoint and report queries to reference the replica instance endpoint.
  • D. Create an Amazon RDS for MySQL Multi-AZ DB instance and configure a read replica in a different Availability Zone. Configure the application to reference the primary DB instance endpoint and report queries to reference the replica instance endpoint.

Answer: A

Explanation:
https://aws.amazon.com/about-aws/whats-new/2016/09/reader-end-point-for-amazon-aurora/


NEW QUESTION # 243
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