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| Section | Objectives |
|---|---|
| Topic 1: Design and implement data models for Azure Cosmos DB | - Design indexing strategies
|
| Topic 2: Integrate Azure Cosmos DB with Azure services | - Data pipelines and analytics
|
| Topic 3: Design and implement data distribution | - Replication and consistency
|
| Topic 4: Optimize and maintain Cosmos DB solutions | - Performance optimization
|
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NEW QUESTION # 85
You have an Azure Cosmos DB for NoSQL account that has multiple write regions.
You need to receive an alert when requests that target the database exceed the available request units per second (RU/s).
Which Azure Monitor signal should you use?
Answer: B
Explanation:
Explanation
Azure Monitor is a service that provides comprehensive monitoring for Azure resources, including Azure Cosmos DB. You can use Azure Monitor to collect, analyze, and alert on metrics and logs from your Azure Cosmos DB account. You can create alerts for Azure Cosmos DB using Azure Monitor based on the metrics, activity log events, or Log Analytics logs on your account For your scenario, if you want to receive an alert when requests that target the database exceed the available request units per second (RU/s), you should use the Document Quota metric. This metric measures the percentage of RU/s consumed by your account or container. You can create an alert rule on this metric from the Azure portal by following these steps In the Azure portal, select the Azure Cosmos DB account you want to monitor.
Under the Monitoring section of the sidebar, select Alerts, and then select New alert rule.
In the Create alert rule pane, fill out the Scope section by selecting your subscription name and resource type (Azure Cosmos DB accounts).
In the Condition section, select Add condition and choose Document Quota from the list of signals.
In the Configure signal logic pane, specify the threshold value and operator for your alert condition. For example, you can choose Greater than or equal to 90 as the threshold value and operator to receive an alert when your RU/s consumption reaches 90% or more of your provisioned throughput.
In the Alert rule details section, specify a name and description for your alert rule.
In the Actions section, select Add action group and choose how you want to receive notifications for your alert. For example, you can choose Email/SMS/Push/Voice as an action type and enter your email address or phone number as a receiver.
Review your alert rule settings and select Create alert rule to save it.
NEW QUESTION # 86
You have an Azure subscription. The subscription contains an Azure Cosmos DB for NoSQL account named account1 that uses strong consistency and is deployed to the East US, West US, and Central US Azure regions.
The round-trip time (RTT) between the regions is shown in the following table.
Which write latency should you estimate for write requests against account1?
Answer: C
Explanation:
Calculate two times the maximum round-trip time (RTT) + 10 ms overhead.
In this scenario this would be 2 x 136 ms + 10 ms, which is 282 ms.
Note: For an Azure Cosmos DB account with strong consistency and multiple regions, write latency is approximately two times the round-trip time (RTT) between the two farthest regions.
This is because a write must be committed to all regions to be considered complete, requiring the data to be sent to the farthest region and then confirmed back to the originating region.
Calculation and factors Core calculation: The write latency is essentially 2 x RTT + constanst overhead. For example, if the RTT between the two farthest regions is 50 ms, the write latency would be roughly 2 x 50 ms + overhead=100 ms + overhead.
Overhead: In practice, you must also add a small constant overhead, which is approximately 10 ms at the 99th percentile for strong consistency, to account for the time it takes for the write to be acknowledged after the data reaches all replicas.
Reference:
https://learn.microsoft.com/en-us/azure/networking/azure-network-latency
NEW QUESTION # 87
You are developing an application that will use an Azure Cosmos DB Core (SQL) API account as a data source.
You need to create a report that displays the top five most ordered fruits as shown in the following table.
A collection that contains aggregated data already exists. The following is a sample document:
{
"name": "apple",
"type": ["fruit", "exotic"],
"orders": 10000
}
Which two queries can you use to retrieve data for the report? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
A)
B)
C)
D)
Answer: A,C
Explanation:
ARRAY_CONTAINS returns a Boolean indicating whether the array contains the specified value. You can check for a partial or full match of an object by using a boolean expression within the command.
Incorrect Answers:
A: Default sorting ordering is Ascending. Must use Descending order.
C: Order on Orders not on Type.
NEW QUESTION # 88
You have an Azure Cosmos DB database named databaset contains a container named container1. The container1 container store product data and has the following indexing policy.
Which path will be indexed?
Answer: B
Explanation:
The indexing policy has an includedPaths array that contains only one path: /product/brand/? . This means that only the properties under /product/brand will be indexed. The ? symbol indicates that only scalar values will be indexed, not arrays or objects1.
The excludedPaths array contains a single path: /* . This means that all other properties will be excluded from indexing. The * symbol indicates a wildcard that matches any property name1.
Therefore, the paths /product/category , /product/[ ]/category , and /product/brand/tailspin will not be indexed.
NEW QUESTION # 89
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a container named container! in an Azure Cosmos DB for NoSQL account.
You need to make the contents of container1 available as reference data for an Azure Stream Analytics job.
Solution: You create an Azure function that uses the Azure Cosmos 08 for NoSQL change feed as a trigger and an Azure event hub as the output.
Does this meet the goal?
Answer: A
NEW QUESTION # 90
......
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