The Article with the heading 2023 DCN (Data Communication and Networking) MCQs having 50 Multiple Choice Questions as Set2/ Series2 Based on MAN (Metropolitan Area Network) with the Correct Answer as well as Proper Explanation that is beneficial for all students who are preparing for Competitive Examinations related to Computer Science (CS) such as BSTET (Bihar STET), BPSC Computer Teacher, Banking Examinations etc.
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DCN (Data Communication and Networking) – MAN (Metropolitan Area Network) MCQs (Question1 to Question5)
Question 1: What does “MAN” stand for in networking?
a. Metropolitan Area Network
b. Mobile Area Network
c. Micro Area Network
d. Mainstream Area Network
Correct Answer: a
Explanation: In networking, “MAN” stands for Metropolitan Area Network, which covers a city or a large campus.
Question 2: Which technology is commonly used to connect devices within a Metropolitan Area Network (MAN)?
a. Bluetooth
b. Wi-Fi
c. Ethernet
d. Fiber optics
Correct Answer: c
Explanation: Ethernet is commonly used to connect devices within a Metropolitan Area Network (MAN) due to its reliability and speed.
Question 3: In a MAN, what is the primary purpose of connecting multiple LANs (Local Area Networks)?
a. To extend network coverage within a city.
b. To reduce network congestion.
c. To provide internet access to a single building.
d. To connect devices within a room.
Correct Answer: a
Explanation: The primary purpose of connecting multiple LANs within a MAN is to extend network coverage within a city.
Question 4: Which layer of the OSI model is primarily associated with the functions of a Metropolitan Area Network (MAN)?
a. Physical layer
b. Data link layer
c. Network layer
d. Transport layer
Correct Answer: c
Explanation: The Network layer of the OSI model is primarily associated with the functions of a Metropolitan Area Network (MAN).
Question 5: How does a MAN contribute to disaster recovery planning for a city?
a. By preventing disasters from occurring.
b. By facilitating communication during emergencies.
c. By providing data backup services.
d. By conducting disaster simulations.
Correct Answer: b
Explanation: A MAN plays a crucial role in disaster recovery by facilitating communication among emergency responders during crises.
DCN (Data Communication and Networking) – MAN (Metropolitan Area Network) MCQs (Question6 to Question10)
Question 6: In a clinical presentation scenario, a 26-year-old male patient is admitted to a hospital. How can a Metropolitan Area Network (MAN) assist in his care?
a. By monitoring the patient’s dietary preferences.
b. By providing entertainment options for the patient.
c. By facilitating communication between medical devices and the patient’s records.
d. By controlling the hospital’s HVAC system.
Correct Answer: c
Explanation: In a clinical setting, a MAN can facilitate communication between medical devices and the patient’s electronic health records, ensuring accurate and timely care.
Question 7: What technology is often used for the physical infrastructure of a Metropolitan Area Network (MAN) to ensure high-speed data transmission?
a. Copper cables
b. Satellite links
c. Fiber optic cables
d. Radio waves
Correct Answer: c
Explanation: Fiber optic cables are frequently used for the physical infrastructure of a MAN to ensure high-speed data transmission. They can transmit data over long distances with minimal signal loss.
Question 8: What is a typical application of a MAN in a densely populated urban area?
a. Providing internet access to a single household.
b. Connecting devices within a small office.
c. Linking multiple university campuses.
d. Extending network coverage to a rural village.
Correct Answer: c
Explanation: A typical application of a MAN in a densely populated urban area is linking multiple university campuses. It provides a robust network infrastructure for educational institutions.
Question 9: In a clinical context, how can a MAN enhance patient care during a medical emergency?
a. By monitoring the stock of hospital supplies.
b. By regulating the hospital’s power supply.
c. By ensuring secure access to patient records and medical devices.
d. By managing the hospital’s cafeteria services.
Correct Answer: c
Explanation: In a clinical scenario, a MAN enhances patient care during a medical emergency by ensuring secure access to patient records and medical devices, allowing healthcare providers to make informed decisions quickly.
Question 10: What is a potential drawback of MANs in terms of security?
a. They are highly vulnerable to physical damage.
b. They are unable to support encryption.
c. They often lack firewalls and antivirus protection.
d. They have limited coverage areas.
Correct Answer: a
Explanation: One potential drawback of MANs in terms of security is that they are highly vulnerable to physical damage, such as cable cuts or hardware tampering, which can disrupt network services.
DCN (Data Communication and Networking) – MAN (Metropolitan Area Network) MCQs (Question11 to Question15)
Question 11: What role does a MAN play in improving the efficiency of public transportation systems in a metropolitan area?
a. Managing the city’s traffic lights.
b. Providing real-time data to commuters.
c. Controlling the operation of buses and trains.
d. Regulating taxi services.
Correct Answer: b
Explanation: A MAN can improve the efficiency of public transportation systems by providing real-time data to commuters about bus and train schedules, delays, and routes, enhancing the overall transportation experience.
Question 12: How does a MAN contribute to the reliability of critical services such as emergency response in a city?
a. By directly controlling emergency vehicles.
b. By ensuring continuous communication among emergency personnel.
c. By predicting and preventing emergencies.
d. By coordinating traffic flow during emergencies.
Correct Answer: b
Explanation: A MAN contributes to the reliability of critical services like emergency response by ensuring continuous communication among emergency personnel, allowing them to coordinate efforts effectively.
Question 13: In the context of a MAN, what is the significance of a “point of presence” (POP)?
a. It refers to the geographic center of the network.
b. It is a physical location where the MAN connects to the internet.
c. It represents the main server in the network.
d. It indicates the maximum coverage area of the MAN.
Correct Answer: b
Explanation: A “point of presence” (POP) in a MAN is a physical location where the network connects to the internet or another external network, enabling data exchange.
Question 14: What type of businesses or organizations often benefit the most from the implementation of a MAN?
a. Small home-based businesses
b. Global corporations with offices worldwide
c. Local coffee shops and restaurants
d. Non-profit organizations
Correct Answer: b
Explanation: Global corporations with offices worldwide often benefit the most from the implementation of a MAN because it allows them to efficiently connect and manage their geographically dispersed offices.
Question 15: How does a MAN differ from a Wide Area Network (WAN)?
a. MANs have a smaller coverage area than WANs.
b. MANs are less secure than WANs.
c. MANs are designed for personal use, while WANs are for businesses.
d. There is no significant difference between MANs and WANs.
Correct Answer: a
Explanation: MANs have a smaller coverage area than WANs. While MANs typically cover a city or large campus, WANs can span across cities, countries, or even globally.
DCN (Data Communication and Networking) – MAN (Metropolitan Area Network) MCQs (Question16 to Question20)
Question 16: What measures can be taken to enhance the security of a MAN network infrastructure?
a. Regularly changing the city’s physical layout.
b. Implementing strong encryption and authentication protocols.
c. Increasing the coverage area of the MAN.
d. Using outdated hardware to reduce vulnerabilities.
Correct Answer: b
Explanation: To enhance the security of a MAN network infrastructure, it’s essential to implement strong encryption and authentication protocols to protect data and access.
Question 17: In what ways can a MAN contribute to smart city initiatives?
a. By controlling the weather.
b. By optimizing traffic flow and reducing congestion.
c. By regulating household electricity usage.
d. By predicting earthquakes.
Correct Answer: b
Explanation: A MAN can contribute to smart city initiatives by optimizing traffic flow, reducing congestion, and improving transportation systems through real-time data and communication.
Question 18: What role does redundancy play in the reliability of a MAN?
a. It increases the likelihood of network failures.
b. It has no impact on network reliability.
c. It enhances network reliability by providing backup pathways.
d. It reduces network speed.
Correct Answer: c
Explanation: Redundancy in a MAN enhances network reliability by providing backup pathways for data transmission. If one pathway fails, data can still flow through an alternate route.
Question 19: How can a MAN help educational institutions in a city?
a. By offering discounted internet services to students.
b. By facilitating remote learning for students and teachers.
c. By organizing city-wide sports events.
d. By providing scholarships to students.
Correct Answer: b
Explanation: A MAN can help educational institutions in a city by facilitating remote learning, enabling students and teachers to access educational resources and collaborate online.
Question 20: What challenges might a MAN face during extreme weather conditions, and how can these challenges be mitigated?
a. Challenges include network congestion, and they can be mitigated by shutting down the MAN during extreme weather.
b. Challenges include cable damage, and they can be mitigated by using weather-resistant materials and backup connections.
c. Challenges include increased data speeds, and they can be mitigated by adding more users to the network.
d. Challenges include power outages, and they can be mitigated by reducing network coverage.
Correct Answer: b
Explanation: During extreme weather conditions, challenges for a MAN may include cable damage. These challenges can be mitigated by using weather-resistant materials for cables and having backup connections in place.
DCN (Data Communication and Networking) – MAN (Metropolitan Area Network) MCQs (Question21 to Question25)
Question 21: How does a MAN support the growth of e-commerce and online businesses within a city?
a. By limiting the number of online businesses allowed to use the network.
b. By providing high-speed data transmission for online transactions.
c. By blocking e-commerce websites to reduce network congestion.
d. By offering discounts to online businesses.
Correct Answer: b
Explanation: A MAN supports the growth of e-commerce and online businesses by providing high-speed data transmission, ensuring quick and reliable online transactions.
Question 22: What role does a MAN play in improving urban planning and development?
a. It has no impact on urban planning.
b. It helps in optimizing transportation and infrastructure planning through data analysis.
c. It controls the construction of new buildings.
d. It manages city parks and recreational facilities.
Correct Answer: b
Explanation: A MAN plays a significant role in urban planning by providing data that can be analyzed to optimize transportation and infrastructure planning within a city.
Question 23: What is the primary difference between a MAN and a LAN (Local Area Network)?
a. The speed of data transmission.
b. The size of the coverage area.
c. The type of cables used.
d. The number of devices connected.
Correct Answer: b
Explanation: The primary difference between a MAN and a LAN is the size of the coverage area. A MAN covers a larger geographical area, typically a city or large campus, while a LAN covers a smaller area, like a single building.
Question 24: How does a MAN contribute to the efficiency of municipal services, such as waste management and public transportation?
a. By controlling the weather.
b. By providing real-time data and communication for better service coordination.
c. By offering discounts to municipal employees.
d. By generating revenue for the city.
Correct Answer: b
Explanation: A MAN contributes to the efficiency of municipal services by providing real-time data and communication, which allows for better coordination of services like waste management and public transportation.
Question 25: In a clinical presentation involving a MAN, how can the network assist in monitoring a patient’s vital signs?
a. By serving as a source of entertainment for patients.
b. By automating billing and administrative tasks.
c. By connecting medical devices to a central monitoring system.
d. By controlling the lighting in hospital rooms.
Correct Answer: c
Explanation: In a clinical scenario involving a MAN, the network can assist in monitoring patient vital signs by connecting medical devices to a central monitoring system, ensuring timely and accurate patient care.
DCN (Data Communication and Networking) – MAN (Metropolitan Area Network) MCQs (Question26 to Question30)
Question 26: How can a MAN contribute to the development of smart grids in urban areas?
a. By regulating the city’s electricity supply.
b. By monitoring traffic patterns.
c. By enabling real-time data collection from utility meters.
d. By controlling local weather conditions.
Correct Answer: c
Explanation: A MAN contributes to the development of smart grids by enabling real-time data collection from utility meters, which helps in efficient energy management within urban areas.
Question 27: What role does a MAN play in enhancing the security of surveillance systems within a city?
a. It has no impact on surveillance systems.
b. It provides backup power to surveillance cameras.
c. It ensures high-speed data transfer for real-time monitoring.
d. It replaces surveillance cameras.
Correct Answer: c
Explanation: A MAN enhances the security of surveillance systems by ensuring high-speed data transfer for real-time monitoring, enabling more effective surveillance of the city.
Question 28: How does a MAN support the growth of telemedicine and remote healthcare services?
a. By limiting the number of healthcare providers on the network.
b. By offering discounts to healthcare institutions.
c. By enabling secure and high-speed data transfer for remote consultations.
d. By providing telepathic communication between doctors and patients.
Correct Answer: c
Explanation: A MAN supports the growth of telemedicine by enabling secure and high-speed data transfer for remote consultations between healthcare providers and patients.
Question 29: In terms of scalability, what advantages does a MAN offer to businesses operating within a city?
a. It offers no advantages in terms of scalability.
b. It allows businesses to easily expand their network as they grow.
c. It reduces the need for businesses to expand.
d. It limits the number of employees a business can hire.
Correct Answer: b
Explanation: A MAN offers advantages in terms of scalability by allowing businesses to easily expand their network as they grow and connect more locations.
Question 30: What is the significance of the “last mile” in a MAN infrastructure?
a. It refers to the final connection from the MAN to individual users or buildings.
b. It indicates the fastest data transmission speed within a MAN.
c. It represents the center of the city’s network.
d. It refers to the last node in the network.
Correct Answer: a
Explanation: The “last mile” in a MAN infrastructure refers to the final connection from the MAN to individual users or buildings, which is crucial for delivering services to end-users.
DCN (Data Communication and Networking) – MAN (Metropolitan Area Network) MCQs (Question31 to Question35)
Question 31: How does a MAN contribute to the efficiency of traffic management systems in a city?
a. By controlling individual vehicles on the road.
b. By providing real-time traffic data to traffic management centers.
c. By managing the city’s public transportation system.
d. By reducing the number of traffic lights.
Correct Answer: b
Explanation: A MAN contributes to the efficiency of traffic management systems by providing real-time traffic data to traffic management centers, enabling better traffic flow control.
Question 32: What role can a MAN play in improving the delivery of public services such as healthcare and education?
a. By directly providing healthcare and educational services.
b. By facilitating secure data exchange and remote access to services.
c. By increasing taxes to fund these services.
d. By reducing the availability of public services.
Correct Answer: b
Explanation: A MAN can improve the delivery of public services by facilitating secure data exchange and remote access to healthcare and educational services, making them more accessible to residents.
Question 33: What are some potential challenges of managing a large-scale MAN in a densely populated city, and how can these challenges be addressed?
a. Challenges include excessive network speed, which can be addressed by slowing down data transmission.
b. Challenges include network congestion, which can be addressed by reducing the number of users.
c. Challenges include network security, which can be addressed by implementing robust security measures.
d. Challenges include the limited coverage area, which can be addressed by expanding the city’s borders.
Correct Answer: c
Explanation: One of the challenges of managing a large-scale MAN in a densely populated city is network security. This can be addressed by implementing robust security measures, such as firewalls and encryption.
Question 34: How can a MAN assist in improving air quality and environmental monitoring within a city?
a. By emitting pollutants into the atmosphere.
b. By controlling the weather.
c. By enabling real-time data collection from air quality sensors.
d. By banning environmental monitoring.
Correct Answer: c
Explanation: A MAN can assist in improving air quality and environmental monitoring by enabling real-time data collection from air quality sensors, allowing for timely responses to pollution issues.
Question 35: In what ways can a MAN help in disaster preparedness and response within an urban area?
a. By predicting disasters before they occur.
b. By providing emergency services with real-time communication and data sharing.
c. By causing disasters to test response capabilities.
d. By limiting access to disaster information.
Correct Answer: b
Explanation: A MAN can help in disaster preparedness and response by providing emergency services with real-time communication and data sharing, enabling effective responses during crises.
DCN (Data Communication and Networking) – MAN (Metropolitan Area Network) MCQs (Question36 to Question40)
Question 36: How does a MAN contribute to the advancement of smart transportation systems in cities?
a. By regulating the speed of vehicles on the road.
b. By providing real-time traffic data for intelligence.
c. By controlling the city’s public transportation schedules.
d. By enforcing traffic rules through surveillance cameras.
Correct Answer: b
Explanation: A MAN contributes to smart transportation systems by providing real-time traffic data, which enables intelligent routing and efficient traffic management.
Question 37: What is the significance of low latency in a MAN network, especially for critical applications?
a. It allows for slower data transmission.
b. It ensures faster data transfer and quicker response times.
c. It increases network congestion.
d. It has no impact on network performance.
Correct Answer: b
Explanation: Low latency in a MAN network is significant, especially for critical applications, as it ensures faster data transfer and quicker response times, which is crucial for tasks like real-time video conferencing and gaming.
Question 38: How can a MAN assist in the implementation of smart metering systems for utilities like electricity and water?
a. By controlling the utility supply directly.
b. By offering discounts on utility bills.
c. By providing secure and real-time data collection from smart meters.
d. By limiting access to utility services.
Correct Answer: c
Explanation: A MAN can assist in smart metering by providing secure and real-time data collection from smart meters, enabling efficient utility monitoring and management.
Question 39: What are the potential consequences of inadequate cybersecurity measures in a MAN network, and how can these consequences be mitigated?
a. Consequences include increased network efficiency, which can be mitigated by reducing security measures.
b. Consequences include data breaches and network vulnerabilities, which can be mitigated by implementing robust cybersecurity protocols.
c. Consequences include reducing network coverage area, which can be mitigated by expanding the MAN.
d. Consequences include reducing network speed, which can be mitigated by increasing the number of users.
Correct Answer: b
Explanation: Inadequate cybersecurity measures in a MAN network can lead to data breaches and network vulnerabilities. These consequences can be mitigated by implementing robust cybersecurity protocols such as encryption and intrusion detection systems.
Question 40: How can a MAN support the implementation of efficient waste management systems in urban areas?
a. By controlling waste collection vehicles.
b. By providing real-time data on waste levels in bins.
c. By regulating waste disposal practices.
d. By limiting access to waste management services.
Correct Answer: b
Explanation: A MAN can support efficient waste management by providing real-time data on waste levels in bins, allowing for optimized waste collection routes and reduced operational costs.
DCN (Data Communication and Networking) – MAN (Metropolitan Area Network) MCQs (Question41 to Question45)
Question 41: How does a MAN contribute to the development of autonomous vehicles and smart transportation infrastructure in a city?
a. By manually controlling autonomous vehicles.
b. By providing real-time traffic data for autonomous vehicle navigation.
c. By limiting access to autonomous vehicle services.
d. By reducing the number of lanes on city roads.
Correct Answer: b
Explanation: A MAN contributes to the development of autonomous vehicles by providing real-time traffic data, enabling efficient navigation and coordination of autonomous vehicles within a smart transportation infrastructure.
Question 42: In a MAN infrastructure, what is the purpose of Quality of Service (QoS) mechanisms?
a. To prioritize network traffic based on the size of the data packets.
b. To reduce the speed of data transmission for specific users.
c. To ensure consistent and reliable network performance for different types of traffic.
d. To block certain websites to reduce network congestion.
Correct Answer: c
Explanation: Quality of Service (QoS) mechanisms in a MAN infrastructure are used to ensure consistent and reliable network performance for different types of traffic, prioritizing critical data.
Question 43: How can a MAN enhance disaster recovery and business continuity planning for enterprises operating within a city?
a. By predicting and preventing disasters.
b. By providing real-time data backup services.
c. By increasing network congestion during emergencies.
d. By limiting access to business services.
Correct Answer: b
Explanation: A MAN can enhance disaster recovery and business continuity planning by providing real-time data backup services, ensuring that critical business data is protected and accessible during and after disasters.
Question 44: What is the role of a MAN in supporting the development of smart city applications such as smart lighting and waste management?
a. It has no role in supporting smart city applications.
b. It provides real-time data for efficient management of smart city systems.
c. It controls the weather in smart cities.
d. It limits access to smart city services.
Correct Answer: b
Explanation: A MAN supports the development of smart city applications by providing real-time data for the efficient management of systems like smart lighting and waste management, optimizing resource utilization.
Question 45: How does a MAN contribute to the implementation of efficient and secure online voting systems in urban areas?
a. By influencing the election results.
b. By providing real-time voter data.
c. By offering discounts to voters.
d. By ensuring secure and reliable data transmission for online voting platforms.
Correct Answer: d
Explanation: A MAN contributes to the implementation of efficient and secure online voting systems by ensuring secure and reliable data transmission for online voting platforms, safeguarding the integrity of the election process.
DCN (Data Communication and Networking) – MAN (Metropolitan Area Network) MCQs (Question46 to Question50)
Question 46: How can a MAN assist in the real-time monitoring of environmental conditions, such as air quality and pollution levels, within a city?
a. By directly controlling environmental conditions.
b. By transmitting data from environmental sensors to monitoring centers.
c. By reducing the number of environmental sensors.
d. By limiting access to environmental monitoring data.
Correct Answer: b
Explanation: A MAN assists in real-time environmental monitoring by transmitting data from environmental sensors to monitoring centers, allowing for timely response to changes in air quality and pollution levels.
Question 47: What role can a MAN play in enhancing public safety and emergency response systems in urban areas?
a. By causing emergencies to test response capabilities.
b. By providing real-time communication and data sharing for first responders.
c. By reducing the availability of emergency services.
d. By controlling weather conditions.
Correct Answer: b
Explanation: A MAN enhances public safety and emergency response systems by providing real-time communication and data sharing for first responders, improving their ability to coordinate and respond to emergencies.
Question 48: How does a MAN contribute to the development of smart energy grids and efficient energy distribution in a city?
a. By regulating household electricity usage.
b. By limiting access to electricity services.
c. By controlling weather conditions.
d. By providing real-time data for energy management.
Correct Answer: d
Explanation: A MAN contributes to the development of smart energy grids by providing real-time data for energy management, enabling efficient energy distribution and optimization of resources.
Question 49: What challenges might arise when implementing a MAN in a densely populated city, and how can these challenges be addressed?
a. Challenges include reducing network speed, which can be addressed by decreasing the number of users.
b. Challenges include increasing network coverage area, which can be addressed by expanding the MAN.
c. Challenges include network congestion, which can be addressed by implementing efficient network protocols.
d. Challenges include no challenges, as MANs are ideal for densely populated cities.
Correct Answer: c
Explanation: One of the challenges when implementing a MAN in a densely populated city is network congestion. This can be addressed by implementing efficient network protocols to manage traffic and prioritize critical data.
Question 50: In what ways can a MAN support the development of efficient and secure digital payment systems for urban businesses and consumers?
a. By limiting access to digital payment services.
b. By providing real-time transaction data to financial institutions.
c. By causing financial transactions to fail.
d. By offering discounts on digital payments.
Correct Answer: b
Explanation: A MAN supports the development of efficient and secure digital payment systems by providing real-time transaction data to financial institutions, enabling secure and reliable digital transactions.