DMD Industry 4.0 & Data Analytics

Question 1

What does 'Industry 4.0' primarily refer to in digital manufacturing?

Accepted Answer

The fourth industrial revolution integrating cyber-physical systems, IoT, cloud computing, and AI into manufacturing

Answer

The fourth version of an industrial software platform

Answer

A US government manufacturing grant program

Answer

The fourth generation of CNC machine tools

Question 2

What is the Industrial Internet of Things (IIoT) in a manufacturing context?

Accepted Answer

The network of sensors, machines, and devices in a factory that collect and exchange data over the internet

Answer

The internet connection used in industrial office buildings

Answer

A type of industrial Ethernet protocol

Answer

A secure VPN for manufacturing company employees

Question 3

Which type of analytics predicts future equipment failures before they occur by analyzing historical and real-time sensor data?

Accepted Answer

Predictive analytics

Answer

Descriptive analytics

Answer

Prescriptive analytics

Answer

Diagnostic analytics

Question 4

In manufacturing data analytics, what does OEE stand for and what does it measure?

Accepted Answer

Overall Equipment Effectiveness — the product of Availability, Performance, and Quality rates

Answer

Operational Efficiency Estimate — total uptime divided by planned time

Answer

Output Efficiency Evaluation — defects per million opportunities

Answer

Online Equipment Examination — sensor health score

Question 5

What is 'edge computing' in the context of smart manufacturing?

Accepted Answer

Processing data locally on or near the machine rather than sending it to a remote cloud server

Answer

Computing performed at the edges of a facility's network perimeter

Answer

Using edge cases in software testing for machines

Answer

Installing servers at the physical edge of a factory floor

Question 6

Which communication protocol is most commonly used for machine-to-machine data exchange in smart factories?

Accepted Answer

OPC-UA (Open Platform Communications Unified Architecture)

Answer

HTTP/1.1

Answer

FTP

Answer

SMTP