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Microsoft DP-420 Exam Syllabus Topics:

SectionObjectives
Topic 1: Design and implement data distribution- Partitioning and scaling
  • 1. Logical and physical partitions
    • 2. Throughput (RU/s) planning
      - Replication and consistency
      • 1. Consistency levels
        • 2. Multi-region replication
          Topic 2: Optimize and maintain Cosmos DB solutions- Monitoring and troubleshooting
          • 1. Alerts and metrics
            • 2. Diagnostics and logging
              - Performance optimization
              • 1. RU consumption optimization
                • 2. Query performance tuning
                  Topic 3: Design and implement data models for Azure Cosmos DB- Design indexing strategies
                  • 1. Indexing policies
                    • 2. Query optimization considerations
                      - Model data for NoSQL workloads
                      • 1. Partitioning strategies
                        • 2. Data modeling patterns (embed vs reference)
                          Topic 4: Integrate Azure Cosmos DB with Azure services- Data pipelines and analytics
                          • 1. Synapse integration
                            • 2. Data movement patterns
                              - Event-driven architectures
                              • 1. Change Feed processing
                                • 2. Integration with Azure Functions

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                                  Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions (Q147-Q152):

                                  NEW QUESTION # 147
                                  You need to implement a trigger in Azure Cosmos DB Core (SQL) API that will run before an item is inserted into a container.
                                  Which two actions should you perform to ensure that the trigger runs? Each correct answer presents part of the solution.
                                  NOTE: Each correct selection is worth one point.

                                  Answer: C,E

                                  Explanation:
                                  C: When triggers are registered, you can specify the operations that it can run with.
                                  F: When executing, pre-triggers are passed in the RequestOptions object by specifying PreTriggerInclude and then passing the name of the trigger in a List object.
                                  Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/sql/how-to-use-stored-procedures-triggers-udfs


                                  NEW QUESTION # 148
                                  You have a container that stores data about families. The following is a sample document.

                                  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
                                  Children who do no have parents defined will appear on the list = NO
                                  Children who do not have parents defined will not appear on the list. This is because the document schema defines the children property as an array of objects that contain the firstName and gender properties of each child, as well as a parents property that references the id values of the parents. If a child does not have parents defined, it means that the parents property is either missing or empty for that child. Therefore, such a child will not be included in the list of children who have parents defined.
                                  Children who have more than one pet will appear on the list multiple times. = Yes Children who have more than one pet will appear on the list multiple times. This is because the document schema defines the pets property as an array of objects that contain the givenName and type properties of each pet, as well as a children property that references the id values of the children who own the pet. If a child has more than one pet, it means that the child's id value will appear in the children property of multiple pet objects. Therefore, such a child will be included in the list of children who have pets multiple times.
                                  Children who do no have pets defined will appear on the list = No
                                  Children who do not have pets defined will not appear on the list. This is because the document schema defines the pets property as an array of objects that contain the givenName and type properties of each pet, as well as a children property that references the id values of the children who own the pet. If a child does not have pets defined, it means that the child's id value does not appear in the children property of any pet object.
                                  Therefore, such a child will not be included in the list of children who have pets defined.


                                  NEW QUESTION # 149
                                  You need to select the capacity mode and scale configuration for account2 to support the planned changes and meet the business requirements. What should you select? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

                                  Answer:

                                  Explanation:

                                  Explanation:


                                  NEW QUESTION # 150
                                  The following is a sample of a document in orders.

                                  The orders container uses customer as the partition key.
                                  You need to provide a report of the total items ordered per month by item type. The solution must meet the following requirements:
                                  Ensure that the report can run as quickly as possible.
                                  Minimize the consumption of request units (RUs).
                                  What should you do?

                                  Answer: D

                                  Explanation:
                                  You can facilitate aggregate data by using Change Feed and Azure Functions, and then use it for reporting.


                                  NEW QUESTION # 151
                                  You have an Azure Cosmos DB Core (SQL) API account named account1 that is configured for automatic failover. The account1 account has a single read-write region in West US and a read region in East US.
                                  You run the following PowerShell command.
                                  Update-AzCosmosDBAccountFailoverPriority -ResourceGroupName `rg1` -Name
                                  `account1` -FailoverPolicy @(`East US`, `West US`)
                                  What is the effect of running the command?

                                  Answer: B

                                  Explanation:
                                  Note: The Update-AzCosmosDBAccountFailoverPriority command updates Failover Region Priority of a CosmosDB Account.
                                  Parameter -FailoverPolicy is an array of strings having region names, ordered by failover priority.
                                  E.g eastus, westus
                                  Reference:
                                  https://docs.microsoft.com/en-us/azure/cosmos-db/high-availability


                                  NEW QUESTION # 152
                                  ......

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