Data and Analytics Big Data and Cloud Analytics

Question 1

What are the 3 Vs traditionally used to define Big Data?

Accepted Answer

Velocity, Volume, Variety

Answer

Value, Veracity, Velocity

Answer

Volume, Visibility, Validity

Answer

Variety, Veracity, Value

Question 2

What is Apache Hadoop primarily used for?

Accepted Answer

Distributed storage and batch processing of large datasets

Answer

Real-time stream processing

Answer

In-memory data analytics

Answer

Relational database management

Question 3

What is the main advantage of Apache Spark over Hadoop MapReduce?

Accepted Answer

Spark processes data in-memory, making it significantly faster

Answer

Spark uses less disk space

Answer

Spark is easier to install

Answer

Spark requires fewer servers

Question 4

Which AWS service is a fully managed data warehouse solution?

Accepted Answer

Amazon Redshift

Answer

Amazon RDS

Answer

Amazon DynamoDB

Answer

Amazon Aurora

Question 5

What is a data lake?

Accepted Answer

A centralized repository storing raw data in native format at any scale

Answer

A relational database optimized for analytics

Answer

A data warehouse with real-time capabilities

Answer

A cloud-based ETL pipeline

Question 6

What does the term 'ETL' stand for in data engineering?

Accepted Answer

Extract, Transform, Load

Answer

Evaluate, Test, Launch

Answer

Export, Transfer, Link

Answer

Execute, Track, Log