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[General] Microsoft DP-420 Desktop Practice Test Software

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【General】 Microsoft DP-420 Desktop Practice Test Software

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Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions (Q122-Q127):NEW QUESTION # 122
You have an Azure Cosmos DB for NoSQL account.
The change feed is enabled on a container named invoice.
You create an Azure function that has a trigger on the change feed.
What is received by the Azure function?
  • A. only the changed properties and the system-defined properties of the updated items
  • B. all the properties of the original items and the updated items
  • C. all the properties of the updated items
  • D. only the partition key and the changed properties of the updated items
Answer: A
Explanation:
Explanation
According to the Azure Cosmos DB documentation12, the change feed is a persistent record of changes to a container in the order they occur. The change feed outputs the sorted list of documents that were changed in the order in which they were modified.
The Azure function that has a trigger on the change feed receives all the properties of the updated items2. The change feed does not include the original items or only the changed properties. The change feed also includes some system-defined properties such as _ts (the last modified timestamp) and _lsn (the logical sequence number)3.
Therefore, the correct answer is:
A: all the properties of the updated items

NEW QUESTION # 123
You have an Azure Cosmos DB for NoSQL account.
You plan 10 create a container named container1. The container1 container will store items that include two properties named nm and age The most commonly executed queries will query container1 for a specific name. The following is a sample of the query.

You need to define an opt-in Indexing policy for container1. The solution must meet the following requirements:
* Minimize the number of request units consumed by the queries.
* Ensure that the _etag property is excluded from indexing.
How should you define the indexing poky? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection Is worth one point.

Answer:
Explanation:

Explanation:


NEW QUESTION # 124
You have an Azure Synapse Analytics workspace named workspace1 that contains a server less SQL pool.
You have an Azure Table Storage account that stores operational data.
You need to replace the Table storage account with Azure Cosmos DB for NoSQL The solution must meet the following requirements:
*Support Queries from the server less SQL pool.
*Only pay for analytical compute when running queries.
*Ensure that analytical processes do
NOTE:affect operational processes.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

Answer:
Explanation:

Explanation:


NEW QUESTION # 125
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?
  • A. Configure the report to query a new aggregate container. Populate the aggregates by using SQL queries that run daily.
  • B. Configure the report to query orders by using a SQL query through a dedicated gateway.
  • C. Configure the report to query orders by using a SQL query.
  • D. Configure the report to query a new aggregate container. Populate the aggregates by using the change feed.
Answer: D
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 # 126
You have an Azure Cosmos DB for NoSQL account that frequently receives the same three queries.
You need to configure indexing to minimize RUs consumed by the queries.
Which type of index should you use for each query? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:
Explanation:

Explanation:
Box 1 = Range Azure Cosmos DB supports three types of indexes: range, spatial and composite. For the query you provided, which is an equality query on a single property, the best type of index to use is range. Range index is based on an ordered tree-like structure and it is used for equality queries, range queries and checking for the presence of a property1. Range index also supports any string or number2.
Box 2 = Composite
Azure Cosmos DB supports three types of indexes: range, spatial and composite. For the query you provided, which is an order by query on two properties, the best type of index to use is composite. Composite index is used for optimizing order by queries on multiple properties1. Composite index allows you to specify a list of property paths and sort orders that are used for ordering items2.
Box 3 = spatial
Azure Cosmos DB supports three types of indexes: range, spatial and composite. For the query you provided, which is a spatial query on a point property, the best type of index to use is spatial. Spatial index is used for querying items based on their location or proximity to a given point1. Spatial index supports point, polygon and linestring data types2.

NEW QUESTION # 127
......
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