1. Home
  2. Amazon
  3. DBS-C01

Amazon DBS-C01 Online Practice Questions and Exam Preparation

DBS-C01 Exam Details

  • Exam Code
    :DBS-C01
  • Exam Name
    :AWS Certified Database - Specialty (DBS-C01)
  • Certification
    :Amazon Certifications
  • Vendor
    :Amazon
  • Total Questions
    :321 Q&As
  • Last Updated
    :Jan 06, 2026

Amazon DBS-C01 Online Questions & Answers

  • Question 1:

    After restoring an Amazon RDS snapshot from 3 days ago, a company's Development team cannot connect to the restored RDS DB instance. What is the likely cause of this problem?

    A. The restored DB instance does not have Enhanced Monitoring enabled
    B. The production DB instance is using a custom parameter group
    C. The restored DB instance is using the default security group
    D. The production DB instance is using a custom option group

  • Question 2:

    A company has a web-based survey application that uses Amazon DynamoDB. During peak usage, when survey responses are being collected, a Database Specialist sees the ProvisionedThroughputExceededException error.

    What can the Database Specialist do to resolve this error? (Choose two.)

    A. Change the table to use Amazon DynamoDB Streams
    B. Purchase DynamoDB reserved capacity in the affected Region
    C. Increase the write capacity units for the specific table
    D. Change the table capacity mode to on-demand
    E. Change the table type to throughput optimized

  • Question 3:

    A company is using an Amazon Aurora PostgreSQL DB cluster for the backend of its mobile application. The application is running continuously and a database specialist is satisfied with high availability and fast failover, but is concerned about performance degradation after failover.

    How can the database specialist minimize the performance degradation after failover?

    A. Enable cluster cache management for the Aurora DB cluster and set the promotion priority for the writer DB instance and replica to tier-0
    B. Enable cluster cache management tor the Aurora DB cluster and set the promotion priority for the writer DB instance and replica to tier-1
    C. Enable Query Plan Management for the Aurora DB cluster and perform a manual plan capture
    D. Enable Query Plan Management for the Aurora DB cluster and force the query optimizer to use the desired plan

  • Question 4:

    A Database Specialist is constructing a new Amazon Neptune DB cluster and tries to load data from Amazon S3 using the Neptune bulk loader API. The Database Specialist is confronted with the following error message:

    Unable to establish a connection to the s3 endpoint. The source URL is s3:/mybucket/graphdata/ and the region code is us-east-1. Kindly confirm your Configuration S3.

    Which of the following activities should the Database Specialist take to resolve the issue? (Select two.)

    A. Check that Amazon S3 has an IAM role granting read access to Neptune
    B. Check that an Amazon S3 VPC endpoint exists
    C. Check that a Neptune VPC endpoint exists
    D. Check that Amazon EC2 has an IAM role granting read access to Amazon S3
    E. Check that Neptune has an IAM role granting read access to Amazon S3

  • Question 5:

    A company uses a large, growing, and high performance on-premises Microsoft SQL Server instance With an Always On availability group cluster size of 120 TIE. The company uses a third-party backup product that requires system-level access to the databases. The company will continue to use this third-party backup product in the future.

    The company wants to move the DB cluster to AWS with the least possible downtime and data loss. The company needs a 2 Gbps connection to sustain Always On asynchronous data replication between the company's data center and AWS.

    Which combination of actions should a database specialist take to meet these requirements? (Select THREE.)

    A. Establish an AWS Direct Connect hosted connection between the companfs data center and AWS
    B. Create an AWS Site-to-Site VPN connection between the companVs data center and AWS over the internet
    C. Use AWS Database Migration Service (AWS DMS) to migrate the on-premises SQL Server databases to Amazon RDS for SQL Server Configure Always On availability groups for SQL Server.
    D. Deploy a new SQL Server Always On availability group DB cluster on Amazon EC2 Configure Always On distributed availability groups between the on-premises DB cluster and the AWS DB cluster_ Fail over to the AWS DB cluster when it is time to migrate.
    E. Grant system-level access to the third-party backup product to perform backups of the Amazon RDS for SQL Server DB instance.
    F. Configure the third-party backup product to perform backups of the DB cluster on Amazon EC2.

  • Question 6:

    A software development company is using Amazon Aurora MySQL DB clusters for several use cases, including development and reporting. These use cases place unpredictable and varying demands on the Aurora DB clusters, and can cause momentary spikes in latency. System users run ad-hoc queries sporadically throughout the week. Cost is a primary concern for the company, and a solution that does not require significant rework is needed.

    Which solution meets these requirements?

    A. Create new Aurora Serverless DB clusters for development and reporting, then migrate to these new DB clusters.
    B. Upgrade one of the DB clusters to a larger size, and consolidate development and reporting activities on this larger DB cluster.
    C. Use existing DB clusters and stop/start the databases on a routine basis using scheduling tools.
    D. Change the DB clusters to the burstable instance family.

  • Question 7:

    A company has deployed an e-commerce web application in a new AWS account. An Amazon RDS for MySQL Multi-AZ DB instance is part of this deployment with a database- 1.xxxxxxxxxxxx.us-east- 1.rds.amazonaws.com endpoint listening on port 3306. The company's Database Specialist is able to log in to MySQL and run queries from the bastion host using these details.

    When users try to utilize the application hosted in the AWS account, they are presented with a generic error message. The application servers are logging a "could not connect to server: Connection times out" error message to Amazon CloudWatch Logs.

    What is the cause of this error?

    A. The user name and password the application is using are incorrect.
    B. The security group assigned to the application servers does not have the necessary rules to allow inbound connections from the DB instance.
    C. The security group assigned to the DB instance does not have the necessary rules to allow inbound connections from the application servers.
    D. The user name and password are correct, but the user is not authorized to use the DB instance.

  • Question 8:

    A company is due for renewing its database license. The company wants to migrate its 80 TB transactional database system from on-premises to the AWS Cloud. The migration should incur the least possible downtime on the downstream database applications. The company's network infrastructure has limited network bandwidth that is shared with other applications.

    Which solution should a database specialist use for a timely migration?

    A. Perform a full backup of the source database to AWS Snowball Edge appliances and ship them to be loaded to Amazon S3. Use AWS DMS to migrate change data capture (CDC) data from the source database to Amazon S3. Use a second AWS DMS task to migrate all the S3 data to the target database.
    B. Perform a full backup of the source database to AWS Snowball Edge appliances and ship them to be loaded to Amazon S3. Periodically perform incremental backups of the source database to be shipped in another Snowball Edge appliance to handle syncing change data capture (CDC) data from the source to the target database.
    C. Use AWS DMS to migrate the full load of the source database over a VPN tunnel using the internet for its primary connection. Allow AWS DMS to handle syncing change data capture (CDC) data from the source to the target database.
    D. Use the AWS Schema Conversion Tool (AWS SCT) to migrate the full load of the source database over a VPN tunnel using the internet for its primary connection. Allow AWS SCT to handle syncing change data capture (CDC) data from the source to the target database.

  • Question 9:

    A company has applications running on Amazon EC2 instances in a private subnet with no internet connectivity. The company deployed a new application that uses Amazon DynamoDB, but the application cannot connect to the DynamoDB tables. A developer already checked that all permissions are set correctly.

    What should a database specialist do to resolve this issue while minimizing access to external resources?

    A. Add a route to an internet gateway in the subnet's route table.
    B. Add a route to a NAT gateway in the subnet's route table.
    C. Assign a new security group to the EC2 instances with an outbound rule to ports 80 and 443.
    D. Create a VPC endpoint for DynamoDB and add a route to the endpoint in the subnet's route table.

  • Question 10:

    A stock market analysis firm maintains two locations: one in the us-east-1 Region and another in the eu-west-2 Region. The business want to build an AWS database solution capable of providing rapid and accurate updates.

    Dashboards with advanced analytical queries are used to present data in the eu-west-2 office. Because the corporation will use these dashboards to make purchasing choices, they must have less than a second to obtain application data.

    Which solution satisfies these criteria and gives the MOST CURRENT dashboard?

    A. Deploy an Amazon RDS DB instance in us-east-1 with a read replica instance in eu- west-2. Create an Amazon ElastiCache cluster in eu-west-2 to cache data from the read replica to generate the dashboards.
    B. Use an Amazon DynamoDB global table in us-east-1 with replication into eu-west-2. Use multi-active replication to ensure that updates are quickly propagated to eu-west-2.
    C. Use an Amazon Aurora global database. Deploy the primary DB cluster in us-east-1. Deploy the secondary DB cluster in eu-west-2. Configure the dashboard application to read from the secondary cluster.
    D. Deploy an Amazon RDS for MySQL DB instance in us-east-1 with a read replica instance in eu-west-2. Configure the dashboard application to read from the read replica.

Related Exams:

Tips on How to Prepare for the Exams

Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only Amazon exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your DBS-C01 exam preparations and Amazon certification application, do not hesitate to visit our Vcedump.com to find your solutions here.