• Exam Breakdown
  • Domain Breakdown
  • Access Breakdown

Exam Format

  • Exam Code: DP‑420
  • Level: Specialty-level certification for Azure Cosmos DB developers
  • Duration: 100 minutes to complete the exam 
  • Passing Score: 700 out of 1,000 (scaled)
  • Unscored Content: May include pilot (unidentified) questions used for future exam design—respond to all items as though they will be scored 

Exam Details

  • Question Types: Multiple-choice, multiple-response, drag-and-drop, case studies, and interactive scenario-based questions 
  • Number of Questions: Typically 40–60 questions 
  • Hands‑On Questions: No live labs, but scenario-driven tasks are included in question blocks to simulate real-world tasks 

Exam Policies

  •  Exam Provider: Pearson VUE
  •  Rescheduling/Cancellation: Must be completed at least 24 hours before the scheduled exam time
  •  Waiting Period: 24 hours after first failure; 14 days after second and subsequent failures (maximum five attempts in 12 months)
  •  Retake Fee: Full exam fee must be paid for each retake

Validity

  • Certification Validity: Expires in 12 months; renewal is done via a free online assessment on Microsoft Learn 

Exam Fee

Base Fee:
  • India – 4865 INR
  • Europe – 126 EUR
  • Middle East – 83 USD
  • USA – 165 USD (excluding taxes; fees may vary by country)
  • Taxes: Country-specific GST/VAT may apply.
  • Example: In India, an 18% tax applies, making the total 5740 INR (4865 INR + 857 INR tax).

Prerequisites

There are no formal prerequisites for DP-420. However, Microsoft recommends:
  •  Experience developing cloud-native applications
  •  Knowledge of Azure services
  •  Familiarity with NoSQL concepts and distributed systems
  •  Proficiency in programming languages such as C#, Java, or Python

Exam Topics

  •  Design and implement data models for Azure Cosmos DB
  •  Configure and manage indexing and query optimization
  •  Implement partitioning strategies and scalability solutions
  •  Manage performance and monitor Azure Cosmos DB solutions
  •  Implement security, backup, and disaster recovery for Cosmos DB

Intended Audience

This certification is ideal for developers and engineers responsible for building applications using Azure Cosmos DB. Candidates should be able to:
  • Design data models and partitioning strategies
  • Integrate Cosmos DB with other Azure services
  • Optimize for performance
  • Maintain resilient and performant data solutions 

Career Impact

Jobs You Can Get:
  •  Jobs You Can Get: Azure Developer, Cloud Database Engineer, Backend Developer, Cloud Architect
    Average Salary: Varies by country — U.S.: $100,000–$140,000 USD, India: ₹9,00,000–₹22,00,000 INR, United Kingdom: £55,000–£85,000 GBP, UAE: 170,000–280,000 AED per year.

  •  Why It’s Valuable: Validates specialized expertise in building scalable, globally distributed, cloud-native applications using Azure Cosmos DB.

Exam Mode

The exam is proctored and can be taken either:
  •  In-person at authorized Pearson VUE test centres
  •  Online through Pearson VUE’s online proctoring system

Exam Booking Link

Book your DP-420 exam via Microsoft Certification — Click here (https://learn.microsoft.com/certifications/)

Once you pass the exam

  •  Download your certification from the Microsoft Certification Dashboard
  •  Processing Time: Certification status typically updates within 24 hours
  •  Log in to your Microsoft Learn profile
  •  Navigate to the Certifications section
  •  Download your certificate (PDF format)

Offers

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    Top Reasons to Choose
    Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB

    High Demand for Cloud-Native Database Expertise

    Organizations building globally distributed applications rely on Azure Cosmos DB. DP-420 validates the ability to design scalable, high-performance NoSQL database solutions for modern cloud-native architectures.

    Strong Focus on Performance and Scalability

    The exam emphasizes partitioning, indexing strategies, throughput optimization, monitoring, and security—critical skills required to maintain reliable and efficient Cosmos DB workloads in production environments.

     
    Career Growth in Cloud and Data Engineering

    As a Microsoft Specialty certification, DP-420 enhances professional credibility and supports advancement into cloud database engineering, backend development, and distributed systems architecture roles worldwide.

     

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    FAQ

    • Who should take the DP-420 exam?

      The DP-420 exam is ideal for developers and engineers who design and implement applications using Azure Cosmos DB. Candidates typically have experience working with NoSQL databases, cloud-native architectures, and Azure services in distributed environments.

    • How difficult is the DP-420 exam?

      The DP-420 exam is considered intermediate to advanced and requires hands-on experience with Cosmos DB. It tests data modeling, partitioning strategies, performance tuning, and security implementation. Practical application development experience significantly improves exam readiness.

    • Why does Microsoft offer the DP-420 certification?

      Microsoft offers DP-420 to validate specialized skills in designing and implementing cloud-native applications using Azure Cosmos DB. As distributed, globally available applications grow, organizations need professionals capable of optimizing performance and scalability in cloud database environments.

    • What resources can be used to prepare for DP-420?

      Candidates can prepare using Microsoft Learn learning paths, Azure Cosmos DB documentation, hands-on labs, and real-world application development practice. Experience with partition keys, indexing policies, throughput management, and monitoring tools is strongly recommended.

    • Is the DP-420 certification valuable in 2026?

      Yes, DP-420 remains valuable in 2026 as organizations continue adopting cloud-native architectures and globally distributed databases. Expertise in Azure Cosmos DB ensures strong career opportunities in modern backend and cloud engineering roles worldwide.