我們最新更新了DP-420考古題，那些沒有通過的，我們想告訴你人生總是在前行，不論走到哪裡，只要帶著信念往前走，比別人多一點努力，你就會多一份成績，所以只需要認真學習我們的DP-420考古題；比別人多一點志氣，你就會多一份出息；比別人多一點堅持，你就會奪取勝利；比別人多一點執著，你就會創造奇蹟。
DP-420測驗的應試者應具備相關專業技能，而能夠設計、實作及監視用來儲存和管理資料的雲端原生應用程式。
此角色的責任包括設計及實作資料模型與資料發佈、將資料載入 Azure Cosmos DB 資料庫，以及最佳化和維護解決方案。 這些專業人員會將解決方案與其他 Azure 服務整合。 他們也會設計、實作及監視考慮到安全性、可用性、復原能力與效能需求的解決方案。
DP-420認證的應試者必須在開發適用於 Azure 的應用程式及使用 Azure Cosmos DB 資料庫技術方面具備扎實的知識與經驗。 他們應熟悉如何開發採用 Azure Cosmos DB for NoSQL API 的應用程式。 他們應該能夠為 API 撰寫有效率的 SQL 查詢，並能夠建立適當的索引原則。 他們應該有使用 JavaScript 建立伺服器端物件的經驗。 此外，他們也應熟知如何在 Azure 中佈建及管理資源。 他們應能夠解讀 JSON、看得懂 C# 或 Java 程式碼，以及使用 PowerShell。
You need to provide a solution for the Azure Functions notifications following updates to con-product. The solution must meet the business requirements and the product catalog requirements.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
A. Configure the trigger for each function to use a different leaseCollectionPrefix
B. Configure the trigger for each function to use the same leaseCollectionName
C. Configure the trigger for each function to use a different leaseCollectionName
D. Configure the trigger for each function to use the same leaseCollectionPrefix
Correct Answer: AB
leaseCollectionPrefix: when set, the value is added as a prefix to the leases created in the Lease collection for this Function. Using a prefix allows two separate Azure Functions to share the same Lease collection by using different prefixes.
Scenario: Use Azure Functions to send notifications about product updates to different recipients.
Trigger the execution of two Azure functions following every update to any document in the con-product container.
Reference:
https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-cosmosdb-v2-trigger

You configure multi-region writes for account1.
You need to ensure that App1 supports the new configuration for account1. The solution must meet the business requirements and the product catalog requirements.
What should you do?
A. Set the default consistency level of account1 to bounded staleness.
B. Create a private endpoint connection.
C. Modify the connection policy of App1.
D. Increase the number of request units per second (RU/s) allocated to the con-product and con-productVendor containers.
Correct Answer: D
App1 queries the con-product and con-productVendor containers.
Note: Request unit is a performance currency abstracting the system resources such as CPU, IOPS, and memory that are required to perform the database operations supported by Azure Cosmos DB.
Scenario:
Develop an app named App1 that will run from all locations and query the data in account1.
Once multi-region writes are configured, maximize the performance of App1 queries against the data in account1.
Whenever there are multiple solutions for a requirement, select the solution that provides the best performance, as long as there are no additional costs associated.
Incorrect Answers:
A:
Bounded staleness relates to writes. App1 only do reads.
Note: Bounded staleness is frequently chosen by globally distributed applications that expect low write latencies but require total global order guarantee. Bounded staleness is great for applications featuring group collaboration and sharing, stock ticker, publish-subscribe/queueing etc.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/consistency-levels