DP-420 試験問題を無料オンラインアクセス

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You have a container named container1 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 Synapse pipeline that uses Azure Cosmos DB for NoSQL change feed as a trigger and an Azure event hub as the output.
Does this meet the goal?

• A.No
• B.Yes

Hotspot Question
You have a database named db1 in an Azure Cosmos DB for NoSQL account named account1.
The db1 database has a manual throughput of 4,000 request units per second (RU/s).
You need to move db1 from manual throughput to autoscale throughput by using the Azure CLI.
The solution must provide a minimum of 4,000 RU/s and a maximum of 40,000 RU/s.
How should you complete the CLI statements? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

正解：

Explanation:
Box 1: migrate
The az cosmosdb sql database throughput migrate command migrates the throughput of the SQL database between autoscale and manually provisioned.
Syntax: az cosmosdb sql database throughput migrate
--account-name
--name
--resource-group
--throughput-type {autoscale, manual}
Box 2: update
The az cosmosdb sql database throughput update command updates the throughput of the SQL database under an Azure Cosmos DB account.
Syntax: az cosmosdb sql database throughput update
--account-name
--name
--resource-group
[--max-throughput]
[--throughput]
Box 3: 4000
Specify the throughput.
Parameter --throughput -
The throughput of SQL database (RU/s).
Note: Example migration from standard (manual) provisioned throughput to autoscale: Suppose you have a container with 10,000 RU/s manual provisioned throughput, and 25 GB of storage.
When you enable autoscale, the initial autoscale max RU/s will be: 10,000 RU/s, which will scale between 1000 - 10,000 RU/s.
Note 2: Parameter --max-throughput
The maximum throughput resource can scale to (RU/s). Provided when the resource is autoscale enabled. The minimum value can be 4000 (RU/s).
Reference:
https://docs.microsoft.com/en-us/cli/azure/cosmosdb/sql/database/throughput

You have a database in an Azure Cosmos DB for NoSQL 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?

• A.cmd = "SELECT * FROM Persons p
  WHERE p.accountnumber = @accountnumber"
• B.cmd = "SELECT * FROM Persons p
  WHERE p.accountnumber = LIKE @accountnumber"
• C.cmd = "SELECT * FROM Persons p
  WHERE p.accountnumber = 'accountnumber'"
• D.cmd = "SELECT * FROM Persons p
  WHERE p.accountnumber = '" + accountnumber + "'"

You have an Azure Cosmos DB for NoSQL account that uses the default consistency level.
How can the consistency level be modified as part of a query request?

• A.weaker consistency for write operations
• B.stronger consistency for write operations
• C.weaker consistency for read operations
• D.stronger consistency for read operations

Your company develops an application named App1 that uses the Azure Cosmos DB SDK and the Eventual consistency level.
App1 queries an Azure Cosmos DB for NoSQL account named account1.
You need to identify which consistency level to assign to App1 to meet the following requirements:
- Maximize the throughput of the queries generated by App1 without
increasing the number of request units currently used by the queries.
- Provide the highest consistency guarantees.
Which consistency level should you identify?

• A.Strong
• B.Session
• C.Consistent Prefix
• D.Bounded Staleness