1. What is the Microsoft DP-420 exam and who is it designed for?
The Microsoft DP-420 exam, “Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB,” is for developers who possess subject matter expertise in designing, implementing, and monitoring cloud-native applications that utilize Azure Cosmos DB. This includes responsibilities such as designing and implementing data models and distribution, loading data, and optimizing and maintaining Azure Cosmos DB solutions. Candidates should have solid experience developing apps for Azure and working with Azure Cosmos DB database technologies, including proficiency with the Core (SQL) API and SDKs, writing efficient queries, and creating server-side objects with JavaScript.
2. What skills are measured on the DP-420 exam?
The DP-420 exam measures your ability to:
- Design and implement data models
- Design and implement data distribution
- Integrate an Azure Cosmos DB solution
- Optimize an Azure Cosmos DB solution
- Maintain an Azure Cosmos DB solution
3. Are there any prerequisites for taking the DP-420 exam?
While there are no formal prerequisites for the DP-420 exam, candidates are expected to have a strong foundation. This includes knowledge of Microsoft Azure and the ability to navigate the Azure portal (equivalent to AZ-900), experience writing code in an Azure-supported language (C#, JavaScript, Python, or Java) at an intermediate level, and the ability to write code for connecting and performing operations on SQL or NoSQL database products.
4. How can I prepare for the DP-420 exam effectively?
Microsoft offers a comprehensive learning path for the DP-420 on Microsoft Learn, which includes self-paced, interactive, and bite-sized tutorials. Hands-on practice with Azure Cosmos DB in the Azure Portal, reviewing official Azure Cosmos DB documentation, and utilizing practice assessments are highly recommended. These resources help build the necessary technical skills and familiarize you with the exam format and question types.
5. What is the passing score for the DP-420 exam and how long is the exam?
To pass the DP-420 exam, a score of 700 out of 1000 is required. The exam duration is typically 100 minutes, though some sources mention up to 180 minutes, which might include time for instructions and comments. It consists of various question types, including multiple-choice, case studies, and scenario-based questions.
6. What is the retake policy for the exam if I don’t pass on my first attempt?
If you don’t pass the exam on your first attempt, you must wait 24 hours before retaking it. For any subsequent attempts (up to a maximum of five in a 12-month period from your first attempt), a 14-day waiting period is imposed between each attempt. If you fail five times, you must wait 12 months from the date of your first attempt before being eligible to retake it again. Each retake generally requires a new payment.
7. How often is the DP-420 exam content updated?
Microsoft exams, including DP-420, are updated periodically to reflect the latest skills required for the role. The English version of the exam is updated first, and localized versions are typically updated approximately eight weeks later. It’s advisable to always refer to the official Microsoft Learn study guide for the most current information on skills measured.
8. How do I register for the exam?
You can schedule the exam through Pearson VUE, which is the platform Microsoft uses for its certification exams. It is strongly recommended to register for the exam using a personal Microsoft account (MSA) to ensure your exam records are retained, even if you change organizations.
9. What is the validity period of the DP-420 certification and how do I renew it?
The Microsoft Certified: Azure Cosmos DB Developer Specialty certification is valid for one year. To maintain your certification, you must renew it before its expiration date. Renewal typically involves passing a free online assessment on Microsoft Learn, which is shorter than the original exam and focuses on the latest service updates and skills.
10. Does the DP-420 exam include interactive components or labs?
Yes, the DP-420 exam may include interactive components or labs. Microsoft certification exams are designed to assess practical skills, and this can involve hands-on scenarios within the exam environment. Microsoft provides an “Exam Sandbox” that allows you to experience the look and feel of the exam, including different question types and the user interface, before your actual test.
