All-in-One Exam Guide DP-420 Prep Guide

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Microsoft DP-420 Exam Syllabus Topics:

Section	Objectives
Integrate Azure Cosmos DB with Azure services	- Data pipelines and analytics 1. Data movement patterns 2. Synapse integration - Event-driven architectures 1. Integration with Azure Functions 2. Change Feed processing
Design and implement data distribution	- Partitioning and scaling 1. Logical and physical partitions 2. Throughput (RU/s) planning - Replication and consistency 1. Multi-region replication 2. Consistency levels
Design and implement data models for Azure Cosmos DB	- Model data for NoSQL workloads 1. Data modeling patterns (embed vs reference) 2. Partitioning strategies - Design indexing strategies 1. Indexing policies 2. Query optimization considerations
Optimize and maintain Cosmos DB solutions	- Performance optimization 1. Query performance tuning 2. RU consumption optimization - Monitoring and troubleshooting 1. Diagnostics and logging 2. Alerts and metrics

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Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions (Q195-Q200):

NEW QUESTION # 195
You have an Azure Cosmos DB Core (SQL) API account named account1 that has the disableKeyBasedMetadataWriteAccess property enabled.
You are developing an app named App1 that will be used by a user named DevUser1 to create containers in account1. DevUser1 has a non-privileged user account in the Azure Active Directory (Azure AD) tenant.
You need to ensure that DevUser1 can use App1 to create containers in account1.
What should you do? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation

Box 1: Resource tokens
Resource tokens provide access to the application resources within a database. Resource tokens:
Provide access to specific containers, partition keys, documents, attachments, stored procedures, triggers, and UDFs.
Box 2: Azure Resource Manager API
You can use Azure Resource Manager to help deploy and manage your Azure Cosmos DB accounts, databases, and containers.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/secure-access-to-data
https://docs.microsoft.com/en-us/rest/api/resources/

NEW QUESTION # 196
You have a database in an Azure Cosmos DB Core (SQL) API account.
You plan to create a container that will store employee data for 5,000 small businesses. Each business will have up to 25 employees. Each employee item will have an emailAddress value.
You need to ensure that the emailAddress value for each employee within the same company is unique.
To what should you set the partition key and the unique key? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

NEW QUESTION # 197
You have a database in an Azure Cosmos DB for NoSQL account that is configured for multi-region writes.
You need to use the Azure Cosmos DB SDK to implement the conflict resolution policy for a container. The solution must ensure that any conflict sent to the conflict feed.
Solution: You set ConfilictResolutionMode to Custom. You Set ResolutionProcedures to a custom stored procedure. You configure the custom stored procedure to use the isTomstone parameter to resolve conflict.
Does this meet the goal?

A. Yes
B. No

Answer: A

Explanation:
The solution is incorrect because there is no "isTom" parameter in the Azure Cosmos DB SDK. The correct parameter is "isTombstone".

NEW QUESTION # 198
You have an Azure Cosmos DB container named container1.
You need to insert an item into contained. The solution must ensure that the item is deleted automatically after two hours.
How should you complete the item definition? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation

NEW QUESTION # 199
You have an Azure Cosmos DB for NoSQL account named account1 that stores loT telemetry from 50.000 devices across 10 distinct. Each device writes one 1-KB document per second, Each document includes three properties named deviceld, districtld-. and tinestamp.
You need to implement a partitioning solution that meets the following requirements:
* Ensures that queries for a single device remain routable without scanning all the partitions *Ensures that no single device5 data can exceed the logical partition limit of account1
* Prevents concentrating all the writes for a time window into a single logical partition What should you configure? To answer, select the appropriate options in the answer area NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation:

NEW QUESTION # 200
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