Data Warehousing Quiz

Data Warehousing Quiz

University

50 Qs

quiz-placeholder

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Data Warehousing Quiz

Data Warehousing Quiz

Assessment

Quiz

Engineering

University

Medium

Created by

Dr. 2304

Used 5+ times

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50 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Identify the correct definition of a Data Mart.

A subset of a data warehouse focused on a specific business line

A relational database

A type of OLAP operation

A metadata repository

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Identify the schema that resembles a star-like structure.

Star schema

Fact constellation

Snowflake schema

Normal schema

3.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Name the process of cleaning and converting data before loading it into a warehouse.

ETL

OLAP

DBMS

ROLAP

4.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Identify the main reason for using concept hierarchies in dimensions.

To allow data to be viewed at different granularities

To create unique keys

To replicate tables

To perform ETL

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Identify the correct reason why enterprise warehouses are preferred for large organizations.

They provide a central data source for all departments

They store only marketing data

They do not require ETL

They are web-based

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

State the role of dimension tables in a star schema.

Provide context (descriptive data) for fact tables

Store transaction-level records

Perform aggregations

Contain metadata

7.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Identify the main purpose of data cube computation.

To pre-compute aggregations for fast query response

To store raw data

To visualize entity relationships

To normalize databases

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