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DP900>Test

Total questions: 58

Worksheet time: 41mins

Name
Class
Date
1.

What should you use to automatically delete blobs from Azure Blob Storage?

a)

A. soft delete

b)

B. archive storage

c)

C. the change feed

d)

D. a lifecycle management policy

2.

You need to store event log data that is semi-structured and received as the logs occur. What should

you use?

a)

A. Azure Table storage

b)

B. Azure Queue storage

c)

C. Azure Files

3.

What is a characteristic of a non-relational database?

a)

A. a fixed schema

b)

B. self-describing entities

c)

C. full support for Transact-SQL

4.

A serverless configuration

a)

Azure SQL Database elastic pool

b)

Azure SQL Managed Instance

c)

Azure SQL Database single database

5.

A database that has the highest compatibility with on-premises Microsoft SQL Server

a)

Azure SQL Database single database:

b)

Azure SQL Database elastic pool

c)

Azure SQL Managed Instance

6.

What is a primary characteristic of a relational database?

a)

A. data is queried and manipulated by using a variant of the SQL language

b)

B. a flexible data structure

c)

C. a lack of dependencies between tables

d)

D. a large amount of duplicate data

7.

Which database transaction property ensures that individual transactions are executed only once and

either succeed in their entirety or roll back?

a)

A. isolation

b)

B. durability

c)

C. atomicity

d)

D. consistency

8.

Which property of a transactional workload guarantees that each transaction is treated as a single

unit that either succeeds completely or fails completely?

a)

A. isolation

b)

B. durability

c)

C. consistency

d)

D. atomicity

9.

Which database transaction property ensures that transactional changes to a database are preserved

during unexpected operating system restarts?

a)

A. consistency

b)

B. durability

c)

C. isolation

d)

D. atomicity

10.

What is used to define a query in a stream processing jobs in Azure Stream Analytics?

a)

A. XML

b)

B. KQL

c)

C. YAML

d)

D. SQL

11.

Which type of Azure resource supports the serverless configuration of an Azure SQL database?

a)

A. Azure SQL Managed Instance

b)

B. SQL Server on Azure Virtual Machines

c)

C. a single database in Azure SQL Database

d)

D. an Azure SQL Database elastic pool

12.

What is required to provision Azure Data Lake Storage in an Azure Storage account?

a)

A. Versioning must be enabled.

b)

B. Hierarchical namespace must be enabled

c)

C. Hierarchical namespace must be disabled

d)

D. Versioning must be disabled.

13.

You plan to deploy an app. The app requires a nonrelational data service that will provide latency

guarantees of less than 10-ms for reads and writes. What should you include in the solution?

a)

A. Azure Cosmos

b)

B. Azure Table storage

c)

C. Azure Files

d)

D. Azure Blob storage

14.

What ate three characteristics of an Online Transaction Processing (OLTP) workload?

a)

A. normalized data

b)

B. schema defined in a database

c)

C. schema defined when reading unstructured data from a database

d)

D. light writes and heavy reads

e)

E. heavy writes and moderate reads

15.

A bank has a system that manages financial transactions.

When transferring money between accounts, the system must never retrieve a value for the source

account that reflects the balance before the transfer and a value for the destination account that

reflects the balance after the transfer.

Of which ACID semantic is this an example?

a)

A. atomicity

b)

B. isolation

c)

C. durability

d)

D. consistency

16.

Which Azure SQL offering provides near-IOO percent compatibility with on-premises Microsoft SQL Server instances, while providing automated updates, backups, and maintenance tasks?

a)

A. Azure SQL Managed Instance

b)

B. SQL Server on Azure Virtual Machines

c)

C. Azure SQL Edge

d)

D. Azure SQL Database

17.

A data engineer is responsible for which task?

a)

A. Design and build analytical models.

b)

B. Design and implement data stores for analytical workloads.

c)

C. Explore data to identify trends.

d)

D. Implement policies, tools. and processes for backup and recovery plans.

18.

In Microsoft Power BI, a .......................................... is a collection of visualizations that appear together on one or more pages.

a)

dashboard

b)

dataset

c)

report

d)

tile

19.

....................................... is a platform as a service (PaaS) relational data service that uses massively parallel processing (MPP)

a)

Azure Synapse Analytics

b)

Azure SQL Database

c)

Azure Cosmos DB

d)

Azure Database for MariaDB

20.

Which T-SQL statement should be used to instruct a database management system to use an index

instead of performing a full table scan?

a)

A. WHERE

b)

B. SELECT

c)

C. JOIN

21.

Database backup and recovery

a)

Data Engineer

b)

Data Analyst

c)

Database Administrator

22.

Enabling advanced analytic capabilities through reports

a)

Data Engineer

b)

Data Analyst

c)

Database Administrator

23.

Monitoring data pipelines

a)

Data Engineer

b)

Data Analyst

c)

Database Administrator

24.

In a relational database, the schema is defined before data is written to the table.

a)

Yes

b)

No

25.

Key/value data stores are highly optimized for complex queries that contain multiple joins.

a)

Yes

b)

No

26.

A relational database is commonly used to store and query structured data.

a)

Yes

b)

No

27.

In a graph database, edges specify relationships between ......................

a)

tables

b)

column families

c)

facts

d)

vertexes

28.

The pipeline engine used in Azure Data Factory is also available in .................................

a)

Azure Svnanse Analytics

b)

Azure Databricks.

c)

Azure HDInsight.

d)

Azure SQL Database.

29.

The Azure Cosmos DB ................................. enables the use of SELECT statements to retrieve documents from Azure Cosmos DB.

a)

for NoSOL

b)

for Apache Gremlin

c)

for MongoDB

d)

for Table

30.

Which Azure Cosmos DB API should you use for a graph database?

a)

A. Azure Cosmos DB for Apache Gremlin

b)

B. Azure Cosmos DB for NoSQL

c)

C. Azure Cosmos DB for Apache Cassandra

d)

D. Azure Cosmos DB for Table

31.

A Microsoft Power BI ................................ enables users to create highly formatted, fixed-layout documents optimized for printing and archiving.

a)

dashboard

b)

interactive report

c)

paginated report

d)

subscription

32.

Batch workloads

a)

collect data and then process the data when a condition is met.

b)

always process data in memory, row-by-row.

c)

collect and process data at most once a day.

d)

process data as new data is received in near real-time.

33.

An extract, load, and transform (ELT) process requires

a)

a target data store powerful enough to transform data.

b)

a data pipeline that includes a transformation engine.

c)

a separate transformation engine.

d)

data that is fully processed before being loaded to the target data store.

34.

Relational data uses to enforce relationships between different tables.

a)

keys

b)

collections

c)

rows

d)

partitions

35.

Varying fields for each entity in a JSON document is an example of

a)

semi-structured data.

b)

relational data.

c)

structured data.

d)

unstructured data

36.

A ISON document that contains customer entities with a variable number of properties is an example of ......................

a)

semi-structured

b)

relational

c)

structured

d)

unstructured

37.

In an analytical model, any point where the dimensions intersect represents ...................

a)

a cube.

b)

an aggregated dimension.

c)

an aggregated measure.

38.

................................ is responsible for finding hidden patterns in data and creating graphical reports that deliver information in a useful and appealing format.

a)

A data analyst

b)

A data engineer

c)

A database administrator

39.

In a fully denormalized database, how is data read and written for a single entity?

a)

A. Data is read from a single table and written to a single table.

b)

B. Data is read from multiple tables and written to a single table.

c)

C. Data is read from a single table and written to multiple tables.

d)

D. Data is read from multiple tables and written to multiple tables.

40.

A relational database is appropriate for scenarios that involve a high of

a)

changes to relationships between entities

b)

Geographically distrubited writes

c)

transacational writes

d)

writes that have varying data structures

41.

An extract , load and transform (ELT) process required ....

a)

A data pipeline that includes a transformation engine

b)

A seperate transformation engine

c)

a target data store powerful enough to transform data

d)

data that is fully processed before being loaded to the target data store

42.

A bar chart showing year to date sales by region is an example of which type of analytics ?

a)

Descriptive

b)

Diagnostic

c)

Predictive

d)

Prescriptive

43.

A visualization that shows a university's current student enrollment versus the maximum capacity is an example of .................................. analytics

a)

Cognitive

b)

Descriptive

c)

Predictive

d)

Prespective

44.

Batch processing can output data to a file store

a)

Yes

b)

No

45.

Batch processing can output data to a relational database

a)

Yes

b)

No

46.

What are two uses of data visualization? Each correct answer present a complete solution.

a)

A. Represent trends and patterns over time

b)

B. Communicate the significance of data.

c)

C. implement machine learning to predict future values.

d)

D. Consistently implement business logic across reports

47.

Data for a product catalog will be loaded every 12 hours to a data warehouse

a)

Batch

b)

Streaming

48.

Data for online purchases will be loaded to a data warehouse as the purchase occur

a)

Streaming

b)

Batch

49.

Updates to inventory data will be loaded to a data warehouse every 1000 transactions

a)

Batch

b)

Streaming

50.

You have an e-commerce application that reads and writes data to an Azure SQL database. Which

type of processing does the application use?

a)

A. stream processing

b)

B. batch processing

c)

C. Online Analytical Processing (OLAP)

d)

D. Online Transaction Processing (OLTP)

51.

What are two characteristics of real-time data processing? Each correct answer present a complete

solution.

a)

A. Data is processed as it is created.

b)

B. Low latency is expected

c)

C. High latency acceptable

d)

D. Data is processed periodically

52.

Which two Azure services can be used to provision Spark clusters? Each correct answer presents a

complete solution.

a)

A. Azure Databricks

b)

B. Azure Log Analytics

c)

C. Azure Time Series Insights

d)

D. Azure HDinsight

53.

You need to develop a solution to provide data to executives. the solution must provide an

interactive graphic interface, depict various key performance indications, and support data

exploration by using drill down.

What should you use in Microsoft Power BI?

a)

A. a dashboard

b)

B. Microsoft Power Apps

c)

C. a dataflow

d)

D. a report

54.

What should you use to build a Microsoft Power BI paginated report?

a)

A. Power BI report Builder

b)

B. Power BI Desktop

c)

C. Charticulator

d)

D. the Power BI service

55.

A pipeline is a representation of a data structure within Azure Data Factory

a)

Yes

b)

No

56.

Azure Data Factory pipelines can execute other pipelines

a)

Yes

b)

No

57.

A processing step within an azure Data Factory pipeline is an activity

a)

Yes

b)

No

58.

Relational data is stored in ........

a)

a file system as unstructred data

b)

a hierarchical folder structure

c)

a tabular form of rows and columns

d)

comma-seperated value (CSV) files