그 외, Itexamdump DP-420 시험 문제집 일부가 지금은 무료입니다: https://drive.google.com/open?id=1dQmKV_0sHur18u68yJLEk2j9ftYFEGeC
Itexamdump를 선택함으로 여러분은 Microsoft 인증DP-420시험에 대한 부담은 사라질 것입니다.우리 Itexamdump는 끊임없는 업데이트로 항상 최신버전의 Microsoft 인증DP-420시험덤프임을 보장해드립니다.만약 덤프품질을 확인하고 싶다면Itexamdump 에서 무료로 제공되는Microsoft 인증DP-420덤프의 일부분 문제를 체험하시면 됩니다.Itexamdump 는 100%의 보장도를 자랑하며Microsoft 인증DP-420시험을 한번에 패스하도록 도와드립니다.
| Section | Objectives |
|---|---|
| Design and implement data models for Azure Cosmos DB | - Model data for NoSQL workloads
|
| Design and implement data distribution | - Partitioning and scaling
|
| Integrate Azure Cosmos DB with Azure services | - Event-driven architectures
|
| Optimize and maintain Cosmos DB solutions | - Performance optimization
|
Itexamdump 안에는 아주 거대한IT업계엘리트들로 이루어진 그룹이 있습니다. 그들은 모두 관련업계예서 권위가 있는 전문가들이고 자기만의 지식과 지금까지의 경험으로 최고의 IT인증관련자료를 만들어냅니다. Itexamdump의 DP-420문제와 답은 정확도가 아주 높으며 한번에 패스할수 있는 100%로의 보장도를 자랑하며 그리고 또 일년무료 업데이트를 제공합니다.
질문 # 183
Case Study 1 - Litware, inc
Overview
Litware, Inc. is a United States-based grocery retailer. Litware has a main office and a primary datacenter in Seattle. The company has 50 retail stores across the United States and an emerging online presence. Each store connects directly to the internet. Existing environment.
Cloud and Data Service Environments. Litware has an Azure subscription that contains the resources shown in the following table.
Each container in productdb is configured for manual throughput. The con-product container stores the company's product catalog data. Each document in con-product includes a con- productvendor value. Most queries targeting the data in con-product are in the following format.
SELECT * FROM con-product p WHERE p.con-productVendor - 'name'
Most queries targeting the data in the con-productVendor container are in the following format SELECT * FROM con-productVendor pv ORDER BY pv.creditRating, pv.yearFounded Existing environment.
Current Problems.
Litware identifies the following issues:
- Updates to product categories in the con-productVendor container do not propagate automatically to documents in the con-product container.
- Application updates in con-product frequently cause HTTP status code 429 "Too many requests".
- You discover that the 429 status code relates to excessive request unit (RU) consumption during the updates.
Requirements.
Planned Changes
Litware plans to implement a new Azure Cosmos DB for NoSQL account named account2 that will contain a database named iotdb. The iotdb database will contain two containers named con- iot1 and con-iot2.
Litware plans to make the following changes:
- Store the telemetry data in account2.
- Configure account1 to support multiple read-write regions.
- Implement referential integrity for the con-product container.
- Use Azure Functions to send notifications about product updates to different recipients.
- Develop an app named App1 that will run from all locations and query the data in account1.
- Develop an app named App2 that will run from the retail stores and query the data in account2.
- App2 must be limited to a single DNS endpoint when accessing account2.
Requirements.
Business Requirements
Litware identifies the following business requirements:
- 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.
- Ensure that Azure Cosmos DB costs for IoT-related processing are predictable.
- Minimize the number of firewall changes in the retail stores.
Requirements.
Product Catalog Requirements
Litware identifies the following requirements for the product catalog:
- Implement a custom conflict resolution policy for the product catalog data.
- Minimize the frequency of errors during updates of the con-product container.
- Once multi-region writes are configured, maximize the performance of App1 queries against the data in account1.
- Trigger the execution of two Azure functions following every update to any document in the con- product container.
You need to identify which connectivity mode to use when implementing App2. The solution must support the planned changes and meet the business requirements.
Which connectivity mode should you identify?
정답：C
설명：
Gateway mode meets the requirements.
https://learn.microsoft.com/en-us/azure/cosmos-db/nosql/sdk-connection-modes
질문 # 184
You have an Azure Cosmos DB Core (SQL) API account.
You configure the diagnostic settings to send all log information to a Log Analytics workspace.
You need to identify when the provisioned request units per second (RU/s) for resources within the account were modified.
You write the following query.
AzureDiagnostics
| where Category == "ControlPlaneRequests"
What should you include in the query?
정답：C
설명：
The following are the operation names in diagnostic logs for different operations:
RegionAddStart, RegionAddComplete
RegionRemoveStart, RegionRemoveComplete
AccountDeleteStart, AccountDeleteComplete
RegionFailoverStart, RegionFailoverComplete
AccountCreateStart, AccountCreateComplete
*AccountUpdateStart*, AccountUpdateComplete
VirtualNetworkDeleteStart, VirtualNetworkDeleteComplete
DiagnosticLogUpdateStart, DiagnosticLogUpdateComplete
Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/audit-control-plane-logs
질문 # 185
You have a container named container1 in an Azure Cosmos DB for NoSQL account named account1.
You configure container1 to use Always Encrypted by using an encryption policy as shown in the C# and the Java exhibits. (Click the C# tab to view the encryption policy in C#. Click the Java tab to see the encryption policy in Java.)
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
정답：
설명：
질문 # 186
You are building an application that will store data in an Azure Cosmos DB for NoSQL account.
The account uses the session default consistency level. The account is used by five other applications. The account has a single read-write region and 10 additional read region.
Approximately 20 percent of the items stored in the account are updated hourly.
Several users will access the new application from multiple devices.
You need to ensure that the users see the same item values consistently when they browse from the different devices. The solution must NOT affect the other applications.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
정답：A,D
설명：
Use Session consistency and use Stateful Entities in Durable Functions or something similar that will allow you to implement a distributed mutex to store and update the Session token across multiple Cosmos client instances.
Note: The session consistency is the default consistency that you get while configuring the cosmos DB account. This level of consistency honors the client session. It ensures a strong consistency for an application session with the same session token. What that means is that whatever is written by a session will return the latest version for reads as well, from that same session.
Incorrect:
Not A: Eventual consistency is the weakest consistency level of all. The first thing to consider in this model is that there is no guarantee on the order of the data and also no guarantee of how long the data can take to replicate. As the name suggests, the reads are consistent, but eventually.
This model offers high availability and low latency along with the highest throughput of all. This model suits the application that does not require any ordering guarantee. The best usage of this type of model would be the count of retweets, likes, non-threaded comments where the count is more important than any other information.
Not B: The reads should be the same from different devices.
Reference:
https://stackoverflow.com/questions/64084499/can-i-use-a-client-constructed-session-token-for-cosmosdb
질문 # 187
You have three containers in an Azure Cosmos DB Core (SQL) API account as shown in the following table.
You have the following Azure functions:
A function named Fn1 that reads the change feed of cn1
A function named Fn2 that reads the change feed of cn2
A function named Fn3 that reads the change feed of cn3
You perform the following actions:
Delete an item named item1 from cn1.
Update an item named item2 in cn2.
For an item named item3 in cn3, update the item time to live to 3,600 seconds.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
정답：
설명：
Explanation:
Box 1: No
Azure Cosmos DB's change feed is a great choice as a central data store in event sourcing architectures where all data ingestion is modeled as writes (no updates or deletes).
Note: The change feed does not capture deletes. If you delete an item from your container, it is also removed from the change feed. The most common method of handling this is adding a soft marker on the items that are being deleted. You can add a property called "deleted" and set it to "true" at the time of deletion. This document update will show up in the change feed. You can set a TTL on this item so that it can be automatically deleted later.
Box 2: No
The _etag format is internal and you should not take dependency on it, because it can change anytime.
Box 3: Yes
Change feed support in Azure Cosmos DB works by listening to an Azure Cosmos container for any changes.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/sql/change-feed-design-patterns
https://docs.microsoft.com/en-us/azure/cosmos-db/change-feed
질문 # 188
......
Itexamdump는 고객님께서Microsoft DP-420첫번째 시험에서 패스할수 있도록 최선을 다하고 있습니다. 만일 어떤 이유로 인해 고객님이Microsoft DP-420시험에서 실패를 한다면 Itexamdump는Microsoft DP-420덤프비용 전액을 환불 해드립니다. 시중에서 가장 최신버전인Microsoft DP-420덤프로 시험패스 예약하세요.
DP-420최고품질 시험덤프 공부자료: https://www.itexamdump.com/DP-420.html
그 외, Itexamdump DP-420 시험 문제집 일부가 지금은 무료입니다: https://drive.google.com/open?id=1dQmKV_0sHur18u68yJLEk2j9ftYFEGeC