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| Section | Objectives |
|---|---|
| Topic 1: Integrate Azure Cosmos DB with Azure services | - Event-driven architectures
|
| Topic 2: Design and implement data models for Azure Cosmos DB | - Design indexing strategies
|
| Topic 3: Optimize and maintain Cosmos DB solutions | - Monitoring and troubleshooting
|
| Topic 4: Design and implement data distribution | - Partitioning and scaling
|
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NEW QUESTION # 78
While working in .NET SDK v3, you need to enable multi-region writes in your app that uses Azure Cosmos DB. WestUS2 is the region where your application would be deployed and Cosmos DB is replicated.
Which of the following attributes would you set to WestUS2 to achieve the goal?
Answer: C
Explanation:
In .NET SDK v3, if you want to enable multi-region writes in your application, set ApplicationRegion to the region where the application is being deployed and Cosmos DB is replicated.
https://docs.microsoft.com/bs-latn-ba/azure/cosmos-db/sql/how-to-multi-master
NEW QUESTION # 79
You have a database named telemetry in an Azure Cosmos DB Core (SQL) API account that stores IoT dat a. The database contains two containers named readings and devices.
Documents in readings have the following structure.
id
deviceid
timestamp
ownerid
measures (array)
- type
- value
- metricid
Documents in devices have the following structure.
id
deviceid
owner
- ownerid
- emailaddress
- name
brand
model
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 # 80
You have a database in an Azure Cosmos DB Core (SQL) API account.
You need to create an Azure function that will access the database to retrieve records based on a variable named accountnumber. The solution must protect against SQL injection attacks.
How should you define the command statement in the function?
Answer: A
Explanation:
Azure Cosmos DB supports queries with parameters expressed by the familiar @ notation. Parameterized SQL provides robust handling and escaping of user input, and prevents accidental exposure of data through SQL injection.
For example, you can write a query that takes lastName and address.state as parameters, and execute it for various values of lastName and address.state based on user input.
SELECT *
FROM Families f
WHERE f.lastName = @lastName AND f.address.state = @addressState
Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/sql/sql-query-parameterized-queries
NEW QUESTION # 81
You work in the Intel company that has its clients across 4 different countries, with hundreds of thousands of clients for countries 1 and 2, and a few thousand clients for countries 3 and 4.
Requests for every country total approximately 50,000 RU/s every hour of the day. The application team of the company suggests using countryId as the partition key for this container.
Which of the following statements is true?
Answer: B
Explanation:
In the given scenario, countries 1 and 2 have hundreds of thousands of clients. Storage hot partitions are likely for countries 1 or 2 since they would have to bulk of the data stored.
Option A is incorrect. The suggested partition will prevent fan out as we will be always going through one partition per countryId.
Option B is correct. Storage hot partitions are likely for countries 1 or 2 since they would have the bulk of the data stored.
Option C is incorrect. There is still a possibility of throughput hot partitions.
Option D is incorrect. This partition key could cause storage hot partitions.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/partitioning-overview
NEW QUESTION # 82
You have a container m an Azure Cosmos DB for NoSQL account. The container stores data about families.
Data about parents, children, and pets are stored as separate documents.
Each document contains the address of each family. Members of the same family share the same partition key named family Id You need to update the address for each member of the same family that share the same address. The solution must meet the following requirements:
* Be atomic consistent isolated, and durable (ACID).
* Provide the lowest latency.
What should you do?
Answer: C
NEW QUESTION # 83
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