DP-900 無料問題集「Microsoft Azure Data Fundamentals」
Hotspot Question
To complete the sentence, select the appropriate option in the answer area.
To complete the sentence, select the appropriate option in the answer area.
正解：
Explanation:
Box 1: simple lookups
A key/value store associates each data value with a unique key. Most key/value stores only support simple query, insert, and delete operations. To modify a value (either partially or completely), an application must overwrite the existing data for the entire value. In most implementations, reading or writing a single value is an atomic operation.
An application can store arbitrary data as a set of values. Any schema information must be provided by the application. The key/value store simply retrieves or stores the value by key.
Reference:
https://docs.microsoft.com/en-us/azure/architecture/guide/technology-choices/data-store- overview
You need to recommend a non-relational data store that is optimized for storing and retrieving files, videos, audio stream, and virtual disk images. The data store must store data, some metadata, and a unique ID for each file.
Which type of data store should you recommend?
Which type of data store should you recommend?
正解：C
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Hotspot Question
Select the answer that correctly completes the sentence.
Select the answer that correctly completes the sentence.
正解：
Explanation:
Database administrators manage databases, assigning permissions to users, storing backup copies of data and restore data in the event of a failure.
https://learn.microsoft.com/en-us/training/modules/explore-roles-responsibilities-world-of-data/2- explore-job-roles
Drag and Drop Question
Match the Azure SQL services to the appropriate use cases. To answer, drag the appropriate service from the column on the left to its use case on the right. Each service may be used once, more than once, or not at all.
NOTE: Each correct match is worth one point.
Match the Azure SQL services to the appropriate use cases. To answer, drag the appropriate service from the column on the left to its use case on the right. Each service may be used once, more than once, or not at all.
NOTE: Each correct match is worth one point.
正解：
Explanation:
Box 1: Azure SQL Database single database
Serverless is a compute tier for single databases in Azure SQL Database that automatically scales compute based on workload demand and bills for the amount of compute used per second. The serverless compute tier also automatically pauses databases during inactive periods when only storage is billed and automatically resumes databases when activity returns.
Scenarios well suited for serverless compute
Single databases with intermittent, unpredictable usage patterns interspersed with periods of inactivity, and lower average compute utilization over time.
Single databases in the provisioned compute tier that are frequently rescaled and customers who prefer to delegate compute rescaling to the service.
New single databases without usage history where compute sizing is dificult or not possible to estimate prior to deployment in SQL Database.
Box 2: Azure SQL Managed Instance
Azure SQL Managed Instance is the intelligent, scalable cloud database service that combines the broadest SQL Server database engine compatibility with all the benefits of a fully managed and evergreen platform as a service.
Box 3: Azure SQL Database elastic pool
Azure SQL Database elastic pools are a simple, cost-effective solution for managing and scaling multiple databases that have varying and unpredictable usage demands. The databases in an elastic pool are on a single server and share a set number of resources at a set price. Elastic pools in SQL Database enable software as a service (SaaS) developers to optimize the price performance for a group of databases within a prescribed budget while delivering performance elasticity for each database.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/serverless-tier- overview?view=azuresql
https://docs.microsoft.com/en- us/azure/azure-sql/database/elastic-pool-overview?view=azuresql
https://docs.microsoft.com/en-us/azure/azure-sql/managed-instance/sql- managed-instance- paas-overview
Hotspot Question
Select the answer that correctly completes the sentence.
Select the answer that correctly completes the sentence.
正解：
Explanation:
hierarchical namespace
https://docs.microsoft.com/en-us/azure/storage/blobs/create-data-lake-storage-account
Hotspot Question
Select the answer that correctly completes the sentence.
Select the answer that correctly completes the sentence.
正解：
Explanation:
https://learn.microsoft.com/en-us/power-bi/create-reports/desktop-upload-desktop-files
Hotspot Question
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
正解：
Explanation:
https://learn.microsoft.com/en-us/training/modules/explore-core-data-concepts/5-transactional- data-processing