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Microsoft DP-420 Exam Questions

Microsoft DP-420 Exam Questions

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Number Of Questions: 125

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Exam Details

Exam Name:

Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB

Exam Code:

DP-420

Total Questions in Exam:

125

Demo Questions

Q1. You have an Azure subscription that contains an Azure Cosmos DB for NoSQL account named account1. Backups for account1 have the following configurations: * Interval: 2 hours * Retention period: 4 days You need to estimate the charges associated with the retention of the backups. How many copies of the backups will incur additional charges?

A.8

B. 12

C. 46

D. 48

Correct Answer: C

Q2. You have an Azure subscription. You plan to create an Azure Cosmos DB for NoSQL database named DB1 that will store author and book data for authors that have each published up to ten books. Typical and frequent queries of the data will include: * All books written by an individual author * The synopsis of individual books You need to recommend a data model for DB1. The solution must meet the following requirements: * Support transactional updates of the author and book data. * Minimize read operation costs. What should you recommend?

A.Create a single container that stores author items and book items, and then items that represent the relationship between the authors and their books.

B. Create three containers, one that stores author items, a second that stores book items, and a third that stores items that represent the relationship between the authors and their books.

C. Create two containers, one that stores author items and another that stores book items. Embed a list of each author's books in the corresponding author item.

D. Create a single container that stores author items and book items. Embed a list of each author's books in the

Correct Answer: D

Q3. 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.all the properties of the updated items

B. only the partition key and the changed properties of the updated items

C. all the properties of the original items and the updated items

D. only the changed properties and the system-defined properties of the updated items

Correct Answer: D

Q4. You have a container m an Azure Cosmos DB for NoSQL account. The container stores data about families. Data about parents, children, and pets are stored as separate documents. Each document contains the address of each family. Members of the same family share the same partition key named family Id You need to update the address for each member of the same family that share the same address. The solution must meet the following requirements: * Be atomic consistent isolated, and durable (ACID). * Provide the lowest latency. What should you do?

A.Update the document of each family member by using a transactional batch operation.

B. Update the document of each family member separately by using a patch operation.

C. Update the document of each family member separately and set the consistency level to strong.

Correct Answer: A

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