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| Certification Vendor: | Microsoft |
|---|---|
| Exam Name: | Designing and Implementing Cloud-Native Applications Using |
| Exam Number: | DP-420 |
| Related Certifications: | Microsoft Certified: Azure Developer Associate (AZ-204) Microsoft Certified: Azure Solutions Architect Expert (AZ-305) |
| Certificate Validity Period: | 1 year (renewable via Microsoft Learn assessment) |
| Available Languages: | Korean, Japanese, Spanish, English, German, French, Chinese (Simplified) |
| Real Exam Qty: | 40-60 (approx.) |
| Passing Score: | 700 / 1000 |
| Exam Price: | $165 USD (may vary by region) |
| Exam Duration: | 100-120 |
| Exam Format: | Drag and drop, Multiple choice, Case studies, Short answer, Multiple response |
| Recommended Training: | Azure Cosmos DB Documentation Microsoft Learn DP-420 Learning Path |
| Exam Registration: | Pearson VUE Registration Portal Microsoft Learn DP-420 Exam Page |
| Sample Questions: | Microsoft DP-420 Sample Questions |
| Exam Way: | Online proctored (Pearson VUE) or in-person at authorized test centers |
| Pre Condition: | No mandatory prerequisites. Recommended: experience with Azure development and NoSQL databases, especially Cosmos DB. |
| Official Syllabus URL: | https://learn.microsoft.com/credentials/certifications/exams/dp-420/ |
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NEW QUESTION # 34
You have a database named telemetry in an Azure Cosmos DB Core (SQL) API account that stores IoT data.
The database contains two containers named readings and devices.
Documents in readings have the following structure.
id
deviceid
timestamp
ownerid
measures (array)
- type
- value
- metricid
Documents in devices have the following structure.
id
deviceid
owner
- ownerid
- emailaddress
- name
brand
model
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
Box 1: Yes
Need to join readings and devices.
Box 2: No
Only readings is required. All required fields are in readings.
Box 3: No
Only devices is required. All required fields are in devices.
NEW QUESTION # 35
You have a container named container1 in an Azure Cosmos DB Core (SQL) API account. The container1 container has 120 GB of data.
The following is a sample of a document in container1.
The orderId property is used as the partition key.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
Box 1: Yes
Records with different OrderIDs will match.
Box 2: Yes
Records with different OrderIDs will match.
Box 3: No
Only records with one specific OrderId will match
NEW QUESTION # 36
You need to recommend indexes for con-product and con-productVendor. The solution must meet the product catalog requirements and the business requirements.
Which type of index should you recommend for each container? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation
NEW QUESTION # 37
You have an Azure Cosmos DB Core (SQL) API account.
You run the following query against a container in the account.
SELECT
IS_NUMBER("1234") AS A,
IS_NUMBER(1234) AS B,
IS_NUMBER({prop: 1234}) AS C
What is the output of the query?
Answer: D
Explanation:
IS_NUMBER returns a Boolean value indicating if the type of the specified expression is a number.
"1234" is a string, not a number.
NEW QUESTION # 38
You need to select the partition key for con-iot1. The solution must meet the IoT telemetry requirements.
What should you select?
Answer: D
Explanation:
Explanation
The partition key is what will determine how data is routed in the various partitions by Cosmos DB and needs to make sense in the context of your specific scenario. The IoT Device ID is generally the "natural" partition key for IoT applications.
Scenario: The iotdb database will contain two containers named con-iot1 and con-iot2.
Ensure that Azure Cosmos DB costs for IoT-related processing are predictable.
Reference:
https://docs.microsoft.com/en-us/azure/architecture/solution-ideas/articles/iot-using-cosmos-db
NEW QUESTION # 39
......
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