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Nptel Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers (July-Dec 2025)
Question 1. Which of the following components of cybersecurity focuses on maintaining the availability, integrity, and confidentiality of business data?
a) Network Security b) Operational Security c) Information Security d) End-user Education
Question 3. Why are IIoT Security Standards required, especially when diverse systems and equipment are integrated on a smart factory floor?
a) To reduce the cost of implementing IIoT b) Because leaving security to individual IIoT implementers is dangerous and every weak line puts the whole factory at risk c) To ensure that only new systems are implemented, not legacy ones d) To increase the complexity of the smart factory floor
Question 4. In IIoT, where are sensors and actuators primarily used compared to traditional automation?
a) Only for critical elements b) Almost everywhere to control, enhance, and optimize various functions c) Exclusively for emergency systems d) To replace human operators entirely
Question 5. In the mining industry, how do sensor networks with gas sensors, strata monitoring devices, and RFID tags contribute to safety and efficiency?
a) They only help in tracking miners’ locations b) They are primarily used for communication between miners c) They replace the need for human inspection d) They provide early disaster warning, monitor working conditions, and help locate miners
Question 7. What are the three key elements of the Industrial Internet?
a) Big Data, Cloud, and AI b) Intelligent Machines, Advanced Analytics, People at Work c) Sensors, Processors, and Actuators d) Software, Hardware, and Middleware
Question 10. In the context of the agriculture industry, what is the primary use of smart sensors like soil and water sensors?
a) To track real-time objects b) To predict driver destinations c) To prevent patient falls in hospitals d) For accurate use of fertilizers and determining crop health
Question 11. Fill in the blanks. Thames Water’s smart water management system, as an example of Industrial Process 4.0 operation efficiency, primarily benefits from _________________.
a) Data monetization and pay-per-use models b) Sensor-based equipment status monitoring and failure detection c) Augmented Reality-based problem diagnosis d) Controlled power generation using weather forecasts
Question 12. Fill in the blanks. Interoperability in the design philosophy of IIoT for Industrial Processes refers to _________________.
a) Empowering smart objects to reduce human intervention b) Facilitating communication between heterogeneous objects c) Virtualization of objects and digital models d) Enabling smart objects to take independent decisions
Question 14. State true or false. In the case of spear phishing, the attackers send thousands of deceitful emails that resemble actual emails from credible sources while email phishing attacks are targeted to a specific person or organization to obtain sensitive information.
Question 15. Which of the following statements is incorrect about the CIA triad in network and computer system security?
a) Confidentiality ensures that information is concealed and protected from unauthorized access b) Integrity refers to maintaining the accuracy and consistency of data, and can always be violated by intentional attacks c) Availability is compromised when authorized users are denied access to information due to network attacks like DDoS d) None of these
Q1. What is the primary purpose of SCADA in industrial applications?
a) Control and monitoring of physical processes b) Designing sensors for manufacturing c) Manual intervention in industrial processes d) Eliminating all automation
Q2. What is the function of WSANs in industrial processes?
a) Manual sensor installation b) Integration of sensors and actuators with wireless networks c) Replacing traditional data systems d) Eliminating automated controls
Q3. What does cybersecurity primarily aim to protect?
a) Physical security b) Internet-connected systems, including hardware, software, and data c) Standalone software applications d) Manual data handling systems
Q7. In the context of Cybersecurity for Industry 4.0, what does SDCMA stand for?
a) Secure Data and Cloud Management Architecture b) Secure Data and Cloud Management Architecture c) Software-Defined Cloud Manufacturing Architecture d) Smart Digital Cloud Monitoring Algorithm
Q8. According to GE, ____________ can be defined as “the association of the global industrial system with low-cost sensing, interconnectivity through internet, high-level computing and analytics.”
a) Industrial Internet b) Internet of Things c) M2M Communication d) SCADA
a) Connected Devices, Ubiquitous Sensing, and Cloud Computing b) Intelligent Machines, Advanced Analytics, and People at work c) 5G Networks, Quantum Computing, and Virtual Reality d) Autonomous Robots, Blockchain, and Cloud Gaming
a) Ability to sense multiple parameters at a single sensor node b) Using multiple sensors to measure a single parameter c) A network of distributed sensors communicating wirelessly d) Ability to process sensor data using artificial intelligence
Q12. Which of the following is a major challenge for industrial processes in Industry 4.0?
a) Decreasing demand for automation b) Unlimited availability of skilled workers c) Constrained workforce and resource utilization d) Reduced need for supply chain management
Q15. According to IEEE 1451 standards, how is a smart sensor defined?
a) Sensor with limited memory and no communication capabilities b) Sensor with small memory and standardized physical connection to enable communication with the processor and data network c) A basic sensor without processing or networking capabilities d) Sensor that only works in standalone mode without network integration
Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers (July-Dec 2024)
Q1.What role does Application Security play in Cybersecurity for Industry 4.0? a. Prevents unauthorized physical access b. Ensures the protection of applications from outer threats c. Lock’s the user’s computer files by using an encryption and demands some money to unlock them d. Resolves network architecture issues
Answer:b. Ensures the protection of applications from outer threats
Q2. What is Operational Security (OPSEC)? a. A method to increase hardware performance b. An analytical action that categorizes information benefits and regulates control for protection c. A technique to reduce software complexity d. A process to enhance network speed
Answer: b. An analytical action that categorizes information benefits and regulates control for protection
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q3.What is Ransomware? a. A type of malware that provides a facility to the attacker to lock user’s computer files by using encryption and demand money to unlock them b. A program that increases computer performance c. A system to enhance network speed d. A method to secure data from unauthorized access
Answer: a. A type of malware that provides a facility to the attacker to lock user’s computer files by using encryption and demand money to unlock them
Q4.What is the primary aim of the Industrial Internet of Things (IIoT)? a. Increase machine life and optimize operational efficiency b. Enhance social media presence c. Decrease manufacturing costs significantly d. Replace human labor completely
Answer: a. Increase machine life and optimize operational efficiency
Q5 What is a major challenge in the deployment of IIoT? a. Legacy installations b. Cybersecurity c. Lack of standardization d. All of the above
Answerd. d All of the above
Q6.What does IIoT provide in the context of firefighting? a. Increased data redundancy b. Real-time monitoring and early warning of disasters c. Manual rescue operations d. Reduced connectivity among devices
Answer: b. Real-time monitoring and early warning of disasters
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q7.What are the three waves of industrial level innovation according to GE? a. The Internet Revolution, The Digital Revolution, The Industrial Internet b. The Industrial Revolution, The Internet Revolution, The Industrial Internet c. The Agricultural Revolution, The Internet Revolution, The Industrial Internet d. The Scientific Revolution, The Industrial Revolution, The Internet Revolution
Answer:b. The Industrial Revolution, The Internet Revolution, The Industrial Internet
Q8.What are the three key elements of the Industrial Internet? a. Manual machines, basic analytics, isolated systems b. Advanced analytics, intelligent machines, people at work c. Traditional methods, paper-based records, local systems d. Low-level computing, limited data, manual labor
Answer: b. Advanced analytics, intelligent machines, people at work
Q9.What is a major drawback of Industrial Revolution? a. It had no impact on the environment b. It created a bad working environment and inefficient processes c. It reduced the use of fossil fuels d. It enhanced the quality of life for all workers
Answer: b. It created a bad working environment and inefficient processes
Q10.What is the primary source of IIoT data? a. Actuators b. Controllers c. Sensors d. Network systems
Q11.Which component is NOT part of the configurations involved in smart sensors? a. Multiparameter Sensing Unit b. Analog Detection Circuit c. Digital Signal Conditioning Unit d. Manual Control Unit
Answer: d. Manual Control Unit
Q12.What is the role of conventional sensing in industrial control systems? a. To increase the complexity of systems b. To involve feedback automation of a process
c. To disconnect systems from feedback loops d. To reduce the reliability of systems
Answer: b. To involve feedback automation of a process
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q13. Which sector is predicted to have the highest growth in Industry 4.0 as per PwC’s Global Industry 4.0 Survey of 2016? a. Electronics b. Manufacturing c. Defense d. Automotive
Answer: a. Electronics
Q14. What is the focus of the ‘Control Layer’ in the 5C Architecture for Cyber Physical Systems? a. Data collection b. Sensor-based monitoring c. Supervised control: Self-configure, Self-optimize, Self-adjust d. Human-readable interpretation and data visualization
Answer: c. Supervised control: Self-configure, Self-optimize, Self-adjust
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q15.In the existing GSM cellular phones, a smart card is used to provide security to e-commerce applications, using encryption and digital signatures. What is it called? a. Wireless Identity Module (WIM) b. Trusted Platform Module (TPM) c. USB Token d. None of the above
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These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q1. What does Cybersecurity protect? a. Only physical infrastructure b. Only software c. Hardware, software, and data d. Only company policies
Answer: c. Hardware, software, and data
Q2. What is the focus of Network Security? a. Only securing physical buildings b. Protecting network architecture from unauthorized access and improper use c. Protecting only the company CEO’s information d. Solely focused on securing paper documents
Answer: b. Protecting network architecture from unauthorized access and improper use
Q3. What does the CIA Triad in Cybersecurity stand for? a. Confidentiality, Integrity, Availability b. Costing, Integrity, Assets c. Company, Internet, Availability d. Communication, Information, Assessment
Answer: a. Confidentiality, Integrity, Availability
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These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q4. What are the key differences between IIoT and traditional Automation? a. No significant differences b. Ubiquitous sensing, advanced analytics, IT tools, and methodologies c. Only in terms of cost d. Limited to the type of machinery used
Answer: b. Ubiquitous sensing, advanced analytics, IT tools, and methodologies
Q5. What are the benefits of deploying sensors and actuators in lloT? a. Limited to academic purposes b. To sell more software c. To control, enhance, and optimize various functions d. To reduce operational efficiency
Answer: c. To control, enhance, and optimize various functions
Q6. How does IIoT benefit the mining industry? a. By relaxing safety standards b. Increasing disaster risks c. Early disaster warning d. Ignoring carbon footprint metrics
Answer: c. Early disaster warning
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These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q7. What is the Third Wave in GE’s industrial level innovation? a. The Industrial Intranet b. The Digital Revolution c. The Industrial Revolution d. The Industrial Internet
Answer: d. The Industrial Internet
Q8. Scarcity of non-renewable sources of energy pose a significant challenge with respect to energy consumption for the future smart industries and industrial internet? a. True b. False
Answer: a. True
Q9. What was the negative effect of the Industrial Revolution? a. Increased life expectancy b. Environmental pollution c. Rise in literacy d. Technological advancement
Answer: b. Environmental pollution
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These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q10. Which of the following is not one of the three key elements of the Industrial Internet? a. Intelligent machines b. Advanced analytics c. People at work d. Social Networking
Answer: d. Social Networking
Q11. How is a smart sensor defined according to IEEE 1451 standard? a. Sensor with large storage capacity b. Sensor with standardized physical connection for communication c. Sensor that operates independently d. Sensor without the need for a power supply
Answer: b. Sensor with standardized physical connection for communication
Q12. What is the purpose of the MRAA library in Intel IoT devices? a. High-level gaming interface b. Large data analysis c. Cloud storage management d. Low-level communication in GNU/Linux platform
Answer: d. Low-level communication in GNU/Linux platform
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These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q13. What is a key aspect of the design philosophy for IIoT in industrial processes? a. Facilitating communication between heterogeneous objects b. Prioritizing manual control over automated systems c. Limiting data interoperability d. Reducing smart object autonomy
Answer: a. Facilitating communication between heterogeneous objects
Q14. What is a feature of the Autonomous Pull Economy in Industrial Process 4.0? a. High waste generation b. Manual data processing c. Limited resource optimization d. End-to-end automation facility
Answer: d. End-to-end automation facility
Q15. Considering the future architecture of the smart Industrial plant, which among the following layers is responsible for autonomous decision making, machine learning and decision support system? a. Connection Layer b. Conversion Layer c. Cyber Layer d. Cognition Layer
Answer: d. Cognition Layer
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These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
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These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q1. Protection of internet-connected systems from cyber-attacks is known as _. (a) Network security (b) Internet security (c) Web security (d) Cybersecurity
Answer: (d) Cybersecurity
Q2. In which category of countermeasure does an application firewall fall? (a) Hardware (b) Software (c) Both (a) and (b) (d) None of the above
Answer: (b) Software
Q3. State true or false — “Cybersecurity is recognized as a subset of information security”. (a) True (b) False
Answer: (b) False
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q4. Which of the following is/are correct regarding network security? (a) It provides protection from unofficial access, improper use, fault, deletion, demolition (b) It is an analytical action which categorizes information benefits. (c) It ensures the protection of applications from outer threats. (d) All of the above
Answer: (a) It provides protection from unofficial access, improper use, fault, deletion, demolition
Q5. What is a malware? (a) A computer program which is used to disturb the computer user, such as computer viruses, spyware etc. (b) A computer program which breaks security policy to get critical information, which is typically secured. (c) A computer program which provides a facility to the attacker in which the attacker locks the user’s computer files by using an encryption and demand some money to unlock them. (d) None of the above
Answer: (a) A computer program which is used to disturb the computer user, such as computer viruses, spyware etc.
Q6. What is SDCMA stand for? (a) Software-Defined Cloud Management Architecture (b) Software-Developed Cloud Manufacturing Architecture (c) Software-Developed Cloud Management Architecture (d) Software-Defined Cloud Manufacturing Architecture
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q7. What are the three key differences between IIoT and Automation? (a) Connectivity, advanced analytics, and IT tools and methodologies (b) Ubiquitous sensing, advanced analytics, and IT tools and methodologies (c) Advance sensing, connectivity, and IT tools and methodologies (d) Ubiquitous sensing, connectivity, and advanced analytics
Answer: (b) Ubiquitous sensing, advanced analytics, and IT tools and methodologies
Q8. What is the role of optimum scheduling in transportation & logistics? (a) It provides good customer services by reducing cancellation and delays. (b) It provides better safety to both the on boarded passengers and machines. (c) It reduces maintenance expenses. (d) It enhances end-to-end automation.
Answer: (a) It provides good customer services by reducing cancellation and delays.
Q9. Which one of the following digital industrial companies coined the term, Industrial Internet? (a) Siemens Global (b) General Electric (c) Accenture (d) Digital Industry
Answer: (b) General Electric
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q10. The __ started with the invention of internal combustion engines and electricity (a) First Stage of the Industrial Revolution (b) Second Stage of the Industrial Revolution (c) Third Stage of the Industrial Revolution (d) Fourth Stage of the Industrial Revolution
Answer: (b) Second Stage of the Industrial Revolution
Q11. Why is outage a huge problem in power industries? (a) Because the service provided by any power industry is very large. (b) Because power lines and other equipment are not mobile. (c) Because replacing a broken equipment is hard. (d) Because locating a broken power line or equipment is not an easy task.
Answer: (d) Because locating a broken power line or equipment is not an easy task.
Q12. The emergence of __ system will replace the isolated systems (a) Edge-based (b) Cloud-based (c) Real-time (d) All of the above
Answer: (b) Cloud-based
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q13. Which of the following is a sensors technology manufacturer? (a) NVDIA (b) General Electric (c) Intel (d) Honeywell
Answer: (d) Honeywell
Q14. What are the three main modules in PLC architecture? (a) CPU, power supply, and I/O (b) Sensors, processor, and actuation (c) Sensors, CPU, and power supply (d) Sensors, CPU, and network
Answer: (a) CPU, power supply, and I/O
Q15. Which of the following is not an actuators technology manufacturer? (a) MOOG (b) SPAT (c) ADAFRUIT (d) ZABER
Answer: (c) ADAFRUIT
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
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These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q1. What is Cybersecurity? (a) Protection of internet-connected systems from cyber-attacks (b) Protection of factories systems from the government is known as cybersecurity. (c) Protection of laborers in the work environment is known as cybersecurity. (d) None of the above
Answer: (a) Protection of internet-connected systems from cyber-attacks
Q2. Which of the following is not a component of cybersecurity? (a) Application Security (b) Network Security (c) Both a and b (d) None of the above
Answer: (c) Both a and b
Q3. Trojan Horse is a type of _______. (a) Ransom-ware (b) Hardware (c) Malware (d) All of the above
Answer: (c) Malware
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q4. What is the aim of phishing? (a) It enables industrial intelligent actions to use advanced data analytic tools for gettable business results (b) To get critical data, such as login information or credit card information. (c) Both a and b (d) None of the above
Answer: (b) To get critical data, such as login information or credit card information.
Q5. “Cyber-attack recognition systems deal with an extensive volume of big dimensional data along with uniform advancing attack features.” True or false? (a) True (b) False
Answer: (a) True
Q6. What is/are the benefit(s) of IIoT? (a) Improves productivity (b) Enables remote diagnosis (c) Reduces operation time (d) All of the above
Answer: (d) All of the above
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q8. Which of the following is not a challenge in deployment of IIoT? (a) Cyber security (b) Legacy installations (c) Lack of skills (d) Advanced IT technologies
Answer: (d) Advanced IT technologies
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q9. What are the key elements in the Industrial Internet? (a) Intelligent machines, Advanced analytics, People at work (b) Intelligent people, Advanced machines, Internet at work (c) Sensors, Actuators, communication protocols (d) None of the above
Answer: (a) Intelligent machines, Advanced analytics, People at work
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q10. Industrial internet can benefit the commercial aviation industry by (a) Improving airlines operations (b) Improving asset management (c) Both a and b (d) None of the above
Answer: (c) Both a and b
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers
Q11. What does “self-decision making” mean in terms of smart sensor function? (a) Software Control and Data Acquisition (b) Communicating vital information like measured, calibration and compensation data to the Central control unit (c) Actuator (d) Self-monitor its operation and changes in the ambience by taking proper decision for required compensation by itself or by alerting human for required action
Answer: (d) Self-monitor its operation and changes in the ambience by taking proper decision for required compensation by itself or by alerting human for required action
Q12. What is SCADA? (a) Software Control and Data Acquisition (b) Supervisory Communication and Data Acquisition (c) Supervisory Control and Data Acquisition (d) Software for Communication and Data Acquisition
Answer: (c) Supervisory Control and Data Acquisition
These are NPTEL Introduction to Industry 4 and Industrial IoT Week 4 Assignment Answers ]
