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| Section | Objectives |
|---|---|
| Integrate Azure Cosmos DB with Azure services | - Event-driven architectures
|
| Design and implement data distribution | - Partitioning and scaling
|
| Design and implement data models for Azure Cosmos DB | - Design indexing strategies
|
| Optimize and maintain Cosmos DB solutions | - Performance optimization
|
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NEW QUESTION # 227
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: A
Explanation:
Explanation
You can facilitate aggregate data by using Change Feed and Azure Functions, and then use it for reporting.
Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/change-feed
NEW QUESTION # 228
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 # 229
You have an Azure Cosmos DB for NoSQL account named account1.
You plan to implement shared database containers in account1.
Upon which two properties is the throughput of a specific container dependent? Each correct answer presents part of the solution.
NOTE: Each correct answer is worth one point.
Answer: B,D
Explanation:
The two properties that affect the throughput of a specific container sharing database-level provisioned throughput are the number of containers in the database and the choice of partition keys across those containers.
Because all containers in a shared-throughput database share the same pool of provisioned Request Units (RU/s), Azure Cosmos DB cannot guarantee predictable performance for any single container. Instead, the throughput available to a specific container depends on these factors:
[D]
The Choice of Partition Keys
Throughput Distribution: At any given time, the throughput allocated to a shared container is distributed across its logical partitions.
Impact: If multiple containers share the same underlying physical storage partitions, an uneven distribution of the workload (or choosing a partition key that causes "hot partitions") will directly throttle or limit the remaining throughput available to other co-located containers.
[E]
The Number of Containers
Resource Dilution: All containers within the database compete for the same aggregate provisioned RU/s.
Impact: Adding more containers to the database natively reduces the slice of the throughput pool available to any individual container under heavy workloads.
Reference:
https://learn.microsoft.com/en-us/azure/cosmos-db/set-throughput
NEW QUESTION # 230
You have operational data in an Azure Cosmos OB for NoSQL database.
Database users report that the performance of the database degrades significantly when a business analytics team runs large Apache Spark-based queries against the database.
You need 10 reduce the impact that running the Spark-based queries has on the database users.
What should you implement?
Answer: D
NEW QUESTION # 231
You have an Azure Cosmos DB for NoSQL account1 that is configured for automatic failover. The account1 account has a single read-write region in West US and a and a read region in East US.
You run the following PowerShell command.
What is the effect of running the command?
Answer: A
Explanation:
Explanation
You can use the Set-AzCosmosDBAccountRegion cmdlet to update the regions that an Azure Cosmos DB account uses. You can use this cmdlet to add a region or change the region failover order. The cmdlet requires a resource group name, an Azure Cosmos DB account name, and a list of regions in desired failover order1.
For your scenario, based on the PowerShell command, you are using the Set-AzCosmosDBAccountRegion cmdlet to update the regions for an Azure Cosmos DB account named account1 that is configured for automatic failover. The command specifies two regions: West US and East US. The effect of running the command is that the account will be configured for multi-region writes.
Multi-region writes is a feature of Azure Cosmos DB that allows you to write data to any region in your account and have it automatically replicated to all other regions. This feature provides high availability and low latency for write operations across multiple regions. To enable multi-region writes, you need to specify at least two regions in your account and set them as write regions . In your command, you are setting both West US and East US as write regions by using the -IsZoneRedundant parameter with a value of $true for both regions.
NEW QUESTION # 232
......
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