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Business Analytics Quiz2

Authored by RAJAT -

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Business Analytics Quiz2
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes the advantage of NoSQL databases over RDBMS?

NoSQL databases enforce strict schema requirements

NoSQL databases scale horizontally more efficiently than RDBMS

NoSQL databases do not support distributed computing

NoSQL databases use only ACID transactions

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which technique is used to handle missing data in a dataset?

Feature extraction

Data imputation

Principal Component Analysis (PCA)

Clustering

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following data visualization techniques is most effective for analyzing the distribution of a single variable?

Bar Chart

Scatter Plot

Histogram

Line Chart

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of using a star schema in a data warehouse?

It minimizes data redundancy

It requires complex joins for querying

It normalizes the data completely

It does not require indexing

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of database is best suited for applications that require complex transactions and strong consistency?

NoSQL Database

Graph Database

Relational Database

Document Store

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which data transformation technique is used to handle categorical data available as text?

One-hot encoding

Principal Component Analysis (PCA)

K-means clustering

Decision trees

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of an ETL (Extract, Transform, Load) process in data warehousing?

Managing real-time transactions

Processing SQL queries efficiently

Collecting, processing, and loading data into a data warehouse

Encrypting sensitive data

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