現実的DP-420試験過去問 &資格試験のリーダー &権威のあるDP-420: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB

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DP-420認証試験は、Azure Cosmos DBデータモデリング、パーティション化、インデックス作成、クエリなど、さまざまなトピックで候補者をテストするように設計されています。また、Azure Functions、Azure Event Hubs、Azure Stream Analytics、Azure Cosmos DB Change Feedに関連する概念もカバーしています。この試験は、Azure Cosmos DBでの仕事の経験があり、クラウドコンピューティングの概念と原則について知識がある専門家向けです。

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DP-420試験は、Azure Cosmos DBの基礎、NoSQLデータモデリングとパーティショニング、Cosmos DBのクエリ技術、グローバルに分散したアプリケーションの設計と実装など、広範なトピックをカバーしています。また、Azure Functions、Azure Event Grid、Azure Service BusなどのAzureサービス、JSON、RESTful API、.NETプログラミング言語などの関連技術についても理解している必要があります。

Microsoft DP-420 試験は、Azure Cosmos DB を使用したクラウドネイティブアプリケーションの設計と実装に関わるプロフェッショナルを対象としています。これには、ソリューションアーキテクト、開発者、およびデータベース管理者が含まれます。この試験に合格した候補者は、Azure Cosmos DB を使用したクラウドネイティブアプリケーションの設計と実装に関するスキルと知識を示すことができます。

Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB 認定 DP-420 試験問題 (Q60-Q65):

質問 # 60
You have an Azure Cosmos DB for NoSQL account that contains a database named DB1 and a container named Container1. You need to manage the account by using the Azure Cosmos DB SDK. What should you do?

A. Create a user defined function (UDF) in Container1.
B. Read a stored procedure in Container1.
C. List the physical partitions of Container1.
D. Create a container in DB1.

正解：A

質問 # 61
You plan to store order data in Azure Cosmos DB for NoSQL account. The data contains information about orders and their associated items.
You need to develop a model that supports order read operations. The solution must minimize the number or requests.

A. Create a single database that contains one container. Create a separate document for each order and embed the order items into the order documents.
B. Create a single database that contains a container for order and a container for order items.
C. Create a database for orders and a database for order items.
D. Create a single database that contains one container. Store orders and order items in separate documents in the container.

正解：A

解説：
Explanation
Azure Cosmos DB is a multi-model database that supports various data models, such as documents, key-value, graph, and column-family3. The core content-model of Cosmos DB's database engine is based on atom-record-sequence (ARS), which allows it to store and query different types of data in a flexible and efficient way3.
To develop a model that supports order read operations and minimizes the number of requests, you should consider the following factors:
The size and shape of your data
The frequency and complexity of your queries
The latency and throughput requirements of your application
The trade-offs between storage efficiency and query performance
Based on these factors, one possible model that you could implement is B. Create a single database that contains one container. Create a separate document for each order and embed the order items into the order documents.
This model has the following advantages:
It stores orders and order items as self-contained documents that can be easily retrieved by order ID1.
It avoids storing redundant data or creating additional containers for order items1.
It allows you to view the order history of a customer with simple queries1.
It leverages the benefits of embedding data, such as reducing the number of requests, improving query performance, and simplifying data consistency2.
This model also has some limitations, such as:
It may not be suitable for some order items that have data that is greater than 2 KB, as it could exceed the maximum document size limit of 2 MB2.
It may not be optimal for scenarios where order items need to be queried independently from orders or aggregated by other criteria2.
It may not support transactions across multiple orders or customers, as transactions are scoped to a single logical partition2.
Depending on your specific use case and requirements, you may need to adjust this model or choose a different one. For example, you could use a hybrid data model that combines embedding and referencing data2
, or you could use a graph data model that expresses entities and relationships as vertices and edges.

質問 # 62
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 container1 in an Azure Cosmos DB Core (SQL) API 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 Azure Cosmos DB Core (SQL) API change feed as a trigger and Azure event hub as the output.
Does this meet the goal?

A. Yes
B. No

正解：B

解説：
The Azure Cosmos DB change feed is a mechanism to get a continuous and incremental feed of records from an Azure Cosmos container as those records are being created or modified. Change feed support works by listening to container for any changes. It then outputs the sorted list of documents that were changed in the order in which they were modified.
The following diagram represents the data flow and components involved in the solution:

質問 # 63
You plan to create an Azure Cosmos DB database named db1 that will contain two containers. One of the containers will contain blog posts, and the other will contain users. Each item in the blog post container will include:
* A single blog post
* All the comments associated to the blog post
* The names of the users who created the blog post and added the comments.
You need to design a solution to update usernames m the user container without causing data integrity issues. The solution must minimize administrative and development effort. What should you include in the solution? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

正解：

解説：

質問 # 64
You plan to implement con-iot1 and con-iot2.
You need to configure the default Time to Live setting for each container. The solution must meet the loT telemetry requirements.
What should you configure? To answer, select the appropriate options in the answer NOTE: Each correct selection is worth one point.

正解：

解説：

Explanation
Box 1 = On (no default)For con-iot1, you need to configure the default TTL setting to On (no default), which means that items in this container do not expire by default, but you can override the TTL value on a per-item basis. This meets the requirement of retaining all telemetry data unless overridden1.
Box 2 = On (3600 seconds)For con-iot2, you need to configure the default TTL setting to On (3600 seconds), which means that items in this container will expire 3600 seconds (one hour) after their last modified time. This meets the requirement of deleting all telemetry data older than one hour1.

質問 # 65
......

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現実的DP-420試験過去問 &資格試験のリーダー &権威のあるDP-420: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB

DP-420テキスト、DP-420資格専門知識

Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB 認定 DP-420 試験問題 (Q60-Q65):

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