DP-420 DOWNLOAD, EXAM DP-420 QUICK PREP

DP-420 Download, Exam DP-420 Quick Prep

DP-420 Download, Exam DP-420 Quick Prep

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DP-420 exam dump, dumps VCE for Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB

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Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions (Q65-Q70):

NEW QUESTION # 65
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.

Answer:

Explanation:

Explanation:


NEW QUESTION # 66
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 a new aggregate container. Populate the aggregates by using the change feed.
  • D. Configure the report to query orders by using a SQL query.

Answer: C

Explanation:
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 # 67
You have an Azure Cosmos DB Core (SQL) API account used by an application named App1.
You open the Insights pane for the account and see the following chart.

Use the drop-down menus to select the answer choice that answers each question based on the information presented in the graphic.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:


NEW QUESTION # 68
You have the following query.
SELECT * FROM c
WHERE c.sensor = "TEMP1"
AND c.value < 22
AND c.timestamp >= 1619146031231
You need to recommend a composite index strategy that will minimize the request units (RUs) consumed by the query.
What should you recommend?

  • A. a composite index for (sensor ASC, value ASC, timestamp ASC)
  • B. a composite index for (sensor ASC, value ASC, timestamp ASC) and a composite index for (sensor DESC, value DESC, timestamp DESC)
  • C. a composite index for (sensor ASC, value ASC) and a composite index for (sensor ASC, timestamp ASC)
  • D. a composite index for (value ASC, sensor ASC) and a composite index for (timestamp ASC, sensor ASC)

Answer: C

Explanation:
If a query has a filter with two or more properties, adding a composite index will improve performance.
Consider the following query:
SELECT * FROM c WHERE c.name = "Tim" and c.age > 18
In the absence of a composite index on (name ASC, and age ASC), we will utilize a range index for this query. We can improve the efficiency of this query by creating a composite index for name and age.
Queries with multiple equality filters and a maximum of one range filter (such as >,<, <=, >=, !=) will utilize the composite index.


NEW QUESTION # 69
You have a container in an Azure Cosmos DB Core (SQL) API account. The container stores telemetry data from IoT devices. The container uses telemetryId as the partition key and has a throughput of 1,000 request units per second (RU/s). Approximately 5,000 IoT devices submit data every five minutes by using the same telemetryId value.
You have an application that performs analytics on the data and frequently reads telemetry data for a single IoT device to perform trend analysis.
The following is a sample of a document in the container.

You need to reduce the amount of request units (RUs) consumed by the analytics application.
What should you do?

  • A. Increase the offerThroughput value for the container.
  • B. Move the data to a new container that uses a partition key of date.
  • C. Move the data to a new container that has a partition key of deviceId.
  • D. Decrease the offerThroughput value for the container.

Answer: C

Explanation:
Explanation
The partition key is what will determine how data is routed in the various partitions by Cosmos DB and needs to make sense in the context of your specific scenario. The IoT Device ID is generally the "natural" partition key for IoT applications.
Reference: https://docs.microsoft.com/en-us/azure/architecture/solution-ideas/articles/iot-using-cosmos-db


NEW QUESTION # 70
......

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