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Microsoft DP-420 Exam Syllabus Topics:

Section	Weight	Objectives
Design and implement data distribution	5-10%	- Design and implement replication strategy 1. Evaluate consistency model impacts 2. Choose a consistency model 3. Perform manual failovers 4. Define automatic failover policies 5. Choose when to distribute data - Design and implement multi-region writes 1. Implement conflict resolution policies 2. Implement multi-region writes 3. Choose when to use multi-region writes
Integrate an Azure Cosmos DB solution	5-10%	- Implement solutions across services 1. Use Change Feed for denormalization 2. Integrate Azure Functions and Event Hubs 3. Aggregate and archive data 4. Enforce referential integrity 5. Implement Azure AI Search integration - Enable analytical workloads 1. Enable analytical store 2. Write data back from Spark 3. Configure Azure Cosmos DB Mirroring 4. Query analytical store from Synapse
Optimize an Azure Cosmos DB solution	15-20%	- Optimize query performance 1. Retrieve request unit cost 2. Adjust indexing policies 3. Calculate query cost 4. Implement integrated cache - Design and implement change feeds 1. Manage change feed instances 2. Develop Azure Functions triggers 3. Consume change feeds using SDK 4. Implement aggregation persistence - Define and implement indexing strategy 1. Choose appropriate index types 2. Optimize index performance 3. Implement composite indexes 4. Choose read-heavy or write-heavy indexing 5. Configure custom indexing policies
Maintain an Azure Cosmos DB solution	25-30%	- Monitor and troubleshoot Azure Cosmos DB solutions 1. Troubleshoot throughput issues 2. Implement backup and recovery strategies 3. Monitor performance and availability 4. Monitor metrics and logs
Design and implement data models	35-40%	- Implement data access 1. Implement SQL queries with arrays and aggregation 2. Use consistency and query request options 3. Use SDKs for CRUD operations 4. Implement optimistic concurrency control 5. Implement patch operations 6. Manage transactional batch operations - Plan and implement sizing and scaling 1. Choose between serverless, provisioned, and free tier 2. Evaluate global distribution costs 3. Configure throughput 4. Design resource governance and scaling 5. Evaluate throughput and storage requirements - Implement client connectivity options 1. Use Azure Cosmos DB emulator 2. Choose gateway or direct connectivity mode 3. Configure client-side threading and logging 4. Implement singleton client 5. Handle connection errors 6. Create database connections - Design and implement a non-relational data model for Azure Cosmos DB for NoSQL 1. Store multiple entity types in the same container 2. Identify data and associated access patterns 3. Denormalize data across documents 4. Store multiple related entities in the same document 5. Reference between documents 6. Identify partition key, id, and unique keys - Design a data partitioning strategy 1. Plan for transactions with partition keys 2. Evaluate cross-partition query cost 3. Choose a partition key 4. Evaluate throughput and data distribution 5. Choose a partitioning strategy 6. Implement synthetic partition keys - Implement server-side programming 1. Implement user-defined functions 2. Implement triggers 3. Write and deploy stored procedures

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Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions (Q130-Q135):

NEW QUESTION # 130
You plan to use a multi-region Azure Cosmos DB for NoSQL account to store data for a new application suite.
The suite contains the applications shown in the following table.

Each application should use the weakest consistency level possible.
Which consistency level should you configure for each application? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation:

NEW QUESTION # 131
You are developing an application that will connect to an Azure Cosmos DB for NoSQL account. The account has a single readme region and one agonal read region. The regions are configured for automatic failover.
The account has the following connect strings. (Line numbers are included for reference only.)

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:

NEW QUESTION # 132
Hotspot Question
You have an Azure subscription that contains an Azure Cosmos DB for NoSQL account.
You define and implement an encryption policy by using the following C# code:

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:

NEW QUESTION # 133
You have an Azure subscription that contains an Azure Cosmos DB for NoSQL account named account1 and a Log Analytics workspace named Workspace1. Workspace 1 stores the logs of account1.
You need to identify which operations used the most request units per second (RU/s) during the last 24 hours.
How should you complete the query? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point

Answer:

Explanation:

NEW QUESTION # 134
You plan to implement con-iot1 and con-iot2.
You need to configure the default Time to Live setting for each container. The solution must meet the loT telemetry requirements.
What should you configure? To answer, select the appropriate options in the answer NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation
Box 1 = On (no default)For con-iot1, you need to configure the default TTL setting to On (no default), which means that items in this container do not expire by default, but you can override the TTL value on a per-item basis. This meets the requirement of retaining all telemetry data unless overridden1.
Box 2 = On (3600 seconds)For con-iot2, you need to configure the default TTL setting to On (3600 seconds), which means that items in this container will expire 3600 seconds (one hour) after their last modified time. This meets the requirement of deleting all telemetry data older than one hour1.

NEW QUESTION # 135
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