Big Data Fundamentals Quiz

What percentage of enterprise data is typically composed of unstructured data?

30%
90%
80% (correct)
40%

What type of data is generated from sensors, smart meters, and medical devices?

Machine-generated Structured Data (correct)
Semi-structured Data
Unstructured Data
Human-generated Structured Data

What is an example of semi-structured data?

Image files
Financial data
XML files (correct)
Audio files

What is the main characteristic of unstructured data?

It doesn't fit into a structured database format (D) Signup and view all the answers

What is an example of human-generated structured data?

CRM data (A) Signup and view all the answers

What type of data is generated from web servers, applications, and networks?

Web log data (A) Signup and view all the answers

What enables two applications to talk to each other?

API (C) Signup and view all the answers

What is the primary purpose of redundant physical infrastructure in Big Data?

To ensure data availability and reliability (A) Signup and view all the answers

What is the main concern addressed by security infrastructure in Big Data?

Identity verification and data privacy (A) Signup and view all the answers

What is an example of a distributed file system in Big Data?

Cloud storage (D) Signup and view all the answers

What is the primary function of firewalls in Big Data security?

To monitor and filter incoming data packets (C) Signup and view all the answers

What is a characteristic of Big Data architecture?

Distributed data processing (A) Signup and view all the answers

What type of data is generated when a user clicks a link on a website?

Click-stream data (D) Signup and view all the answers

What is an example of human-generated unstructured data?

Text internal to your company (A) Signup and view all the answers

What is a schema in a relational database?

A structural representation to define database elements (A) Signup and view all the answers

What is an example of machine-generated unstructured data?

Satellite images (D) Signup and view all the answers

What is the main characteristic of data stored in a relational database?

Data is stored in tables (A) Signup and view all the answers

What type of data includes information about a user's interactions with a game?

Gaming-related data (A) Signup and view all the answers

What is the primary challenge of big data in terms of processing capacity?

Data exceeds the processing capacity of conventional database systems (D) Signup and view all the answers

What is the estimated cost of 1 TB of disk storage?

$35 (B) Signup and view all the answers

What is the estimated time it takes to read 1 TB of disk?

3 hours (A) Signup and view all the answers

What are the three V's of big data?

Volume, Velocity, and Variety (C) Signup and view all the answers

What is an example of web data?

E-commerce (A) Signup and view all the answers

How much data does Facebook process daily?

60 TB (C) Signup and view all the answers

What is a key advantage of using cloud-based apps over traditional software installation?

Access to spare processing resources (C) Signup and view all the answers

What is the primary purpose of platform as a service (PaaS)?

To provide a complete development and deployment environment (C) Signup and view all the answers

Why is distributed computing necessary for handling big data?

To enable the distribution of components across a series of nodes (B) Signup and view all the answers

What enables the treatment of all nodes of a data center as one big pool of computing?

Virtualization technology (B) Signup and view all the answers

What is a node in distributed computing?

An element contained within a cluster of systems or within a rack (B) Signup and view all the answers

What is the main challenge in getting performance right for big data?

Having a faster computer (D) Signup and view all the answers