5G Network Support Quiz

1. What is the primary advantage of 5G networks in terms of bandwidth?

• 5G networks have higher bandwidth, allowing them to connect more devices simultaneously and improving the quality of Internet services in crowded areas.
• 5G networks limit the number of devices that can connect simultaneously.
• 5G networks use the same bandwidth as 4G, without any improvements.
• 5G networks have lower bandwidth, resulting in slower connections for users.

2. What is the peak download speed of 5G networks when there is only one user in the network?

• 1 gigabit per second (Gbit/s)
• 10 gigabits per second (Gbit/s)
• 100 megabits per second (Mbit/s)
• 1 terabit per second (Tbit/s)

3. How does 5G improve communication compared to previous networks?

• 5G offers significantly lower latency, enabling near-instantaneous communication.
• 5G reduces the number of devices that can connect at once.
• 5G slows down data transmission speeds overall.
• 5G increases the physical distance between devices.

4. What are some applications that require real-time data exchange and are particularly suited for 5G?

• Basic web browsing, cloud storage solutions, photo-sharing apps, and online gaming.
• Traditional phone calls, text messaging, email communications, and postal services.
• Applications such as extended reality (XR), autonomous vehicles, remote surgery, and industrial automation.
• Social media platforms, online shopping sites, video streaming services, and email services.

5. How does 5G support the Internet of Things (IoT)?

• 5G primarily relies on satellite communication, limiting its effectiveness in urban environments.
• 5G increases data storage in devices, improving individual performance and connection speed.
• 5G supports the IoT by enabling highly responsive, large-scale IoT deployments with diverse applications like smart cities, connected infrastructure, industrial IoT, and automated manufacturing processes.
• 5G reduces the need for batteries in IoT devices, extending their operational lifespan significantly.

6. What types of non-terrestrial networks (NTN) does 5G incorporate for global coverage?

• Satellites and high-altitude platforms
• Underwater cables and mobile towers
• Landline connections and satellite phones
• Ground-based antennas and fiber optics

7. What are the challenges in deploying 5G networks?

• Easy transition from 4G, full backward compatibility, infinite coverage range, and no need for additional security measures.
• Significant infrastructure investment, spectrum allocation, security risks, and concerns about energy efficiency and environmental impact associated with the use of higher frequency bands.
• Low installation costs, minimal regulatory hurdles, unlimited existing bandwidth, and universal compatibility with older devices.
• No requirement for new equipment, the ability to use any frequency band, reliance on existing power sources, and simple upgrades for users.

8. What are the different frequency bands used in 5G networks?

• Low-band (600–900 MHz), mid-band (1.7–4.7 GHz), and high-band millimeter-wave (24–47 GHz).
• Low-band (500–800 MHz), mid-band (2.0–3.5 GHz), and high-band (20–30 GHz).
• Low-band (600–1,000 MHz), mid-band (1.5–4.0 GHz), and high-band (30–60 GHz).
• Low-band (400–700 MHz), mid-band (1.0–3.0 GHz), and ultra-high-band (30–50 GHz).

9. What is the primary component of the 5G System?

• The 5G user equipment.
• The 5G antenna system.
• The 5G modulation scheme.
• The 5G core network.

10. What architecture does the 5G core network use?

• A peer-to-peer network architecture.
• A decentralized mesh architecture.
• A cloud-aligned service-based architecture (SBA).
• A monolithic architecture.

11. What are the components of the 5G core architecture?

• AMF, UPF, SMF, PCF, NRF
• APN, DNS, DHCP, NAT, VPN
• VoIP, HTTP, FTP, SMTP, IP
• CPU, GPU, RAM, ROM, SSD

12. What is the role of AMF in the 5G core network?

• AMF serves as a repository for network functions and components.
• AMF routes user data traffic and handles optimization tasks.
• AMF manages user device mobility and session management.
• AMF controls session establishment and policy enforcement.

13. What is the role of UPF in the 5G core network?

• UPF handles user data traffic efficiently.
• UPF manages the radio frequencies used in 5G.
• UPF facilitates the physical installation of 5G towers.
• UPF is responsible for user authentication in the network.

14. What is the role of SMF in the 5G core network?

• SMF controls session management and service delivery aspects of the 5G network.
• SMF is responsible for managing user equipment power consumption.
• SMF enhances data encryption within the 5G core network.
• SMF provides physical channel access for user equipment.

15. What is the role of PCF in the 5G core network?

• PCF facilitates user authentication and mobility in 5G systems.
• PCF handles network data traffic management in the 5G core.
• PCF manages policy control and enforcement within the 5G network.
• PCF is responsible for hardware maintenance in the 5G architecture.

16. What is the role of NRF in the 5G core network?

• NRF serves as a repository for network functions.
• NRF manages user authentication processes.
• NRF controls session management and service delivery.
• NRF handles user data traffic routing.

17. What is OFDM in the context of 5G technology?

• OFDM is an application framework for developing software solutions in 5G technology.
• OFDM is a modulation format that encodes high-band airwaves incompatible with 4G, offering lower latency and improved flexibility compared with LTE networks.
• OFDM is a physical interface standard that manages energy consumption in 5G devices.
• OFDM is a security protocol used to protect data transmitted over 5G networks.

18. How does 5G technology work in terms of data encoding?

• 5G technology modifies how data is encoded, significantly increasing the number of usable airwaves for carriers.
• 5G technology relies solely on fiber optics for data encoding without radio signals.
• 5G technology encodes data by compressing it into smaller packets to minimize lag.
• 5G technology uses only traditional coding methods to maintain compatibility with older networks.

19. What is the role of gNB in the 5G Radio Access Network?

• gNB allocates radio frequencies for different wireless applications in the network.
• gNB encrypts user data to guarantee secure connections between devices.
• gNB controls the internet traffic between mobile devices and the core network.
• gNB (Next-Generation NodeB) transmits and receives wireless signals to and from user equipment.

20. What is NG-RAN in the context of 5G?

• NG-RAN is a protocol for managing data centers in 5G networks.
• NG-RAN is a type of satellite communication technology in 5G.
• NG-RAN refers to a specific mobile device used for 5G connectivity.
• NG-RAN is the next-generation radio access network architecture in 5G.

21. What is the primary function of the Core Network in 5G architecture?

• The Core Network manages only the radio frequencies used in 5G communications.
• The Core Network primarily focuses on physical layer connectivity and signal strength.
• The Core Network serves as the central part of the 5G architecture, handling various network functions, service delivery, and management.
• The Core Network is responsible for customer billing and payment processing in 5G services.

22. How does 5G support the creation of private networks?

• 5G requires constant internet access and cannot support standalone private networks.
• 5G reduces the speed of public networks, limiting private network creation.
• 5G technology allows for the creation of private networks or next-generation Local Area Networks (LAN), offering unified connectivity, optimized services, and secure communication.
• 5G technology only enhances existing public networks with no private network capabilities.

23. What are some of the key features of 5G networks?

• Key features include conventional infrastructure, lower data throughput, reduced range, and unstable connections.
• Key features include increased costs, slower speeds, limited coverage, and outdated technology.
• Key features include higher speeds, reduced latency, increased capacity, network slicing, and improved reliability.
• Key features include limited connectivity, lower frequencies, static networks, and minimal speed improvements.

24. How does 5G compare to fibre optic networks in terms of speed?

• While 5G brings many benefits, including high speed, it will take time to rival existing fibre networks.
• 5G speeds will always exceed those of fibre optic connections.
• 5G is faster than fibre optic networks in all situations.
• Fibre optic networks have no speed advantages over 5G.

25. What are some of the differences between 4G and 5G networks?

• 5G networks use the same frequency ranges as 4G, resulting in no difference in performance.
• 5G networks have a slower speed than 4G networks and do not improve device connectivity.
• 5G networks only provide basic voice services and do not support data transfer.
• 5G networks are faster and have lower latency than 4G, offering increased capacity and better resource usage.

26. How does 5G use radio spectrum resources?

• 5G relies solely on 4G spectrum, preventing any bandwidth improvements.
• 5G is restricted to high-frequency bands below 1 GHz, which restricts connectivity.
• 5G can operate in a broader range of bandwidths, from sub-3 GHz used in 4G to 100 GHz and beyond, substantially increasing capacity and multi-Gbps throughput.
• 5G uses only low-band frequencies, limiting its bandwidth and speed.

27. What is the role of smaller transmitters in 5G technology?

• Smaller transmitters only replace large mobile towers without improving speed.
• Smaller transmitters enhance network coverage and capacity, enabling connectivity for more devices efficiently.
• Smaller transmitters are used exclusively for improving voice call quality.
• Smaller transmitters disrupt existing 4G networks and create interference.

28. How does 5G support the Internet of Things (IoT) in factories?

• 5G supports the IoT by wirelessly connecting thousands of smart devices like cameras and sensors to automatically manage and process data.
• 5G improves the IoT by providing unlimited battery life for all devices.
• 5G supports the IoT by eliminating the need for any human intervention in factories.
• 5G enhances the IoT by using satellite signals for all communications.

29. What are some of the industries that will benefit most from 5G networks?

• Textiles
• Construction
• Agriculture
• Healthcare

30. How does 5G complement fibre optic networks?

• 5G networks operate solely on traditional copper lines, limiting their bandwidth.
• 5G reduces the need for fibre optic cables by operating independently.
• 5G wireless networks and fibre optic networks complement each other, offering a cohesive internet experience by providing secure, scalable, and reliable connectivity.
• 5G only offers speed improvements without any support for fibre optic infrastructure.