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Microsoft DP-300 Exam Practice Questions, practice question pack
MICROSOFT · DP-300

Microsoft DP-300 Exam Practice Questions

99% pass rateUpdated 1 Nov 2026373 questions2 PDFs, instant download
4.821 reviews
(21 customer reviews)

US$39

Every question with the correct answer and why the other options are wrong.

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99% pass rate. Pass or your money back.Fail the exam after using this pack and we refund it, or swap it for any other pack. How the guarantee works
I used Certstash for my DP-300 preparation and found the questions very similar to the real exam. The explanations were clear, and this helped me pass on my first attempt. Highly recommended for anyone serious about clearing the certification.
Callum SterlingDP-300
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TRY BEFORE YOU BUY

Three of the 373 questions in this pack

Question 1

You have 20 Azure SQL databases provisioned by using the vCore purchasing model. You plan to create an Azure SQL Database elastic pool and add the 20 databases. Which three metrics should you use to size the elastic pool to meet the demands of your workload? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

  1. total size of all the databases
  2. geo-replication support
  3. number of concurrently peaking databases * peak CPU utilization per database
  4. maximum number of concurrent sessions for all the databases
  5. total number of databases * average CPU utilization per database
Show answer and explanation

Correct answer: A, C, E. total size of all the databases; number of concurrently peaking databases * peak CPU utilization per database; total number of databases * average CPU utilization per database

To properly size an Azure SQL Database elastic pool, you need three key metrics: A) the total size of all databases to determine storage requirements, C) the number of concurrently peaking databases multiplied by peak CPU utilization per database to understand peak computational demand, and E) the total number of databases multiplied by average CPU utilization per database to understand baseline resource consumption. These three metrics together provide the storage, peak load, and average load dimensions needed for accurate pool sizing.

Why the other options are wrong

  • B. Geo-replication support is a feature configuration, not a sizing metric for the elastic pool itself.
  • D. While concurrent sessions matter for capacity planning, the specific metric of maximum concurrent sessions for all databases is less relevant than CPU utilization metrics for elastic pool sizing.

Question 2

You have a Microsoft SQL Server 2019 database named DB1 that uses the following database-level and instance-level features. • Clustered columnstore indexes • Automatic tuning • Change tracking • PolyBase You plan to migrate DB1 to an Azure SQL database. What feature should be removed or replaced before DB1 can be migrated?

  1. Clustered columnstore indexes
  2. PolyBase
  3. Change tracking
  4. Automatic tuning
Show answer and explanation

Correct answer: B. PolyBase

PolyBase must be removed before migration to Azure SQL Database because Azure SQL Database does not support PolyBase functionality. Clustered columnstore indexes, automatic tuning, and change tracking are all supported features in Azure SQL Database, so they can remain in place during migration.

Why the other options are wrong

  • A. Clustered columnstore indexes are fully supported in Azure SQL Database.
  • C. Change tracking is a supported feature in Azure SQL Database and does not need to be removed.
  • D. Automatic tuning is supported in Azure SQL Database and can be migrated without modification.

Question 3

You have a Microsoft SQL Server 2019 instance in an on-premises datacenter. The instance contains a 4-TB database named DB1. You plan to migrate DB1 to an Azure SQL Database managed instance. What should you use to minimize downtime and data loss during the migration?

  1. distributed availability groups
  2. database mirroring
  3. Always On Availability Group
  4. Azure Database Migration Service
Show answer and explanation

Correct answer: D. Azure Database Migration Service

Azure Database Migration Service (DMS) is specifically designed to minimize downtime and data loss during database migrations to Azure SQL Database managed instances. It provides capabilities for online migrations with continuous synchronization, allowing the source database to remain operational during the migration process. Distributed availability groups, database mirroring, and Always On Availability Groups are SQL Server features that cannot directly migrate to managed instances and are not appropriate for this scenario.

Why the other options are wrong

  • A. Distributed availability groups are on-premises SQL Server features and do not facilitate migration to Azure.
  • B. Database mirroring is a legacy SQL Server feature that cannot be used to migrate to Azure managed instances.
  • C. Always On Availability Groups are on-premises features; while they can be part of a migration strategy, Azure DMS is the proper tool to orchestrate the migration itself.

See all 93 free questions Get the full pack, US$39

REVIEWS

21 reviews for Microsoft DP-300 Exam Practice Questions

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How much of the Microsoft DP-300 bank is free?

373 questions in the bank

Each step includes the one before, so buying only adds new questions.

  • You are here10questionsFree sampleThree on this page, all ten as a PDF.Download the sample
  • 9325% of the bankPractice pageFree on the site, every answer explained.Go to the practice page
  • 186the first half of the packHalf PackFree by email, as one PDF, every answer explained.Get the Half Pack
  • 373100%, the whole bankFull pack, US$39Plus the questions-only PDF, monthly updates, refund if you fail.Get the full pack
ABOUT THIS PACK

What’s in the Microsoft DP-300 pack

  • 373 questions mapped to the DP-300 exam objectives
  • Answers and explanations for every question, including the wrong options
  • A questions-only PDF for timed practice runs
  • Instant delivery by email the moment you check out
  • Free monthly updates for as long as the exam is live
  • Pass or your money back

Fail the DP-300 and it costs another US$165. This pack is US$39, paid once, and refunded if you fail.

What makes the DP-300 hard

DP-300 is a DBA exam wearing a cloud costume, and it punishes both directions: on-premises DBAs who do not know the Azure deployment options, and cloud specialists who have never tuned a query plan.

The exam's favourite fork is deployment choice: Azure SQL Database versus Managed Instance versus SQL Server on a VM, and which service tier survives the scenario's HA/DR requirement. It also goes deep on execution plans and index tuning, Query Store, deadlock diagnosis, automated backup chains, failover groups versus availability groups versus active geo-replication, and the security stack from TDE to Always Encrypted.

Three domains carry 20 to 25% each, securing the environment, performance monitoring and optimisation, and high availability and disaster recovery, so the exam is far more evenly balanced than the job title suggests. This pack has 373 practice questions for the DP-300, including the HA/DR and performance scenarios that decide it.

About the exam

DP-300 certifies administering SQL Server database infrastructure on Azure: deployment, security, monitoring, performance optimisation, automation, and high availability and disaster recovery. Skills measured as of 24 April 2026. Renews annually via a free online assessment.

Questions before you buy

How quickly do I receive it?

Straight away. The full PDF and a questions-only copy are emailed to you the moment your payment goes through, and the same links are on your order page.

Are updates included?

Yes. The pack is updated every month for as long as the exam is live, and updates are free for everyone who has bought it.

What if I fail the exam?

We refund the pack, or swap it for any other pack if you would rather keep studying. Sit the exam 7 to 30 days after buying, then send your official score report within 7 days of the exam date, as set out in the refund policy.

What is your pass rate?

99% of customers who prepare with a CertStash pack pass. If you do not, we refund the pack, or swap it for another pack.

Can I share it with colleagues?

Each purchase is licensed to one person. For a team, school or training organisation, email support@certstash.com for a licence that fits.

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