BACKHAUL MEDIA FOR MOBILE RADIO NETWORK (OFC/ OFC SYSTEMS/ MINI LINK) AND RRH

E4 - E5 CM
BACKHAUL MEDIA FOR MOBILE RADIO NETWORK (OFC/ OFC SYSTEMS/ MINI LINK) AND RRH
Q. 1 , What is backhaul in a mobile network?

a) A network that connects the macro cell to the small cells

b) A transport network that connects the core network and the RAN/Cell Site

c) A connection between the cell tower and the internet service provider's network

d) A high-capacity wireless channel to get packets to the microwave or fiber links

View answer
Q. 2 , What is front haul in a mobile network?

a) A transport network that connects the core network and the RAN/Cell Site

b) A connection between the cell tower and the internet service provider's network

c) A connection in RAN infrastructure between the Baseband Unit (BBU) and Remote Radio Head (RRH)

d) A network that connects the macro cell to the small cells

View answer
Q. 3 , What is the difference between backhaul and front haul?

a) Backhaul connects the macro cell to the small cells, while front haul connects the core network and the RAN/Cell Site.

b) Backhaul connects the core network and the RAN/Cell Site, while front haul connects the macro cell to the small cells.

c) Backhaul and front haul are the same concept.

d) Backhaul and front haul are both wireless components of a mobile network.

View answer
Q. 4 , Which of the following components may be included in a backhaul?

a) Wired

b) Fiber optic

c) Wireless

d) All of the above

View answer
Q. 5 , Which technology is typically used in the backbone network of a mobile network?

a) Copper-based wire line

b) Satellite communications

c) OFC

d) Point-to-multipoint wireless technologies

View answer
Q. 6 , What is the main purpose of mobile backhaul?

a) To connect the cell tower to the rest of the world

b) To connect the core network and the RAN/Cell Site

c) To supplement the backhaul connection between the BBU and central network core

d) To support a mix of voice, video, text and data traffic originating from and terminating to mobile devices.

View answer
Q. 7 , Which network type commonly implements backhaul?

a) Fixed-line network

b) Satellite network

c) Mobile network

d) All of the above

View answer
Q. 8 , Which technology is being phased out as capacity and latency requirements become higher in 4G and 5G networks?

a) Fiber-based backhaul

b) Copper-based wire line

c) Satellite communications

d) Point-to-multipoint wireless technologies

View answer
Q. 9 , What is the significance of mobile backhaul in the era of 5G?

a) It will become less important

b) It will become more important

c) It will be phased out

d) It will be replaced by point-to-point wireless technologies

View answer
Q. 10 , What is the primary backhaul technology for 2G/3G?

A) Fibre-optic

B) Wireless

C) Copper-based

D) Satellite

View answer
Q. 11 , What is the bandwidth supported by the T1/E1 protocol?

A) 1.5 Mbps to 2 Mbps

B) 10 Gbps to 25 Gbps

C) 150 Mbps/10 Mbps

D) 1.5 Gbps

View answer
Q. 12 , What technique can be used to enable multiple optical signals to be conveyed in parallel on different wavelengths or colors of light?

A) OFDM

B) WDM

C) CDWM

D) DWDM

View answer
Q. 13 , What is the main limitation of fibre as a backhaul technology?

A) Cost and logistics of deploying fibre

B) Fading or multi-path dispersion

C) Limited bandwidth carrying capability

D) Latency issue

View answer
Q. 14 , What is the most used backhaul technology for 3G/4G/5G?

A) Copper-based

B) Satellite

C) Fibre-optic

D) Microwave

View answer
Q. 15 , What is the range of data throughput capabilities of V-band and E-band microwave backhaul links?

A) 150 Mbps/10 Mbps

B) 1.5 Gbps

C) 10 Gbps to 25 Gbps

D) 1.6 Tbps per fibre

View answer
Q. 16 , What is the advantage of using LOS backhaul?

A) Low-cost option

B) Can be deployed in a matter of days

C) Little fading or multi-path dispersion

D) Can relay information back to a central base station

View answer
Q. 17 , What technology does NLOS backhaul use to relay information back to a central base station?

A) OFDM

B) WDM

C) CDWM

D) DWDM

View answer
Q. 18 , What is the main challenge of using satellite backhaul?

A) Cost and logistics of deploying satellite

B) Limited bandwidth carrying capability

C) Latency issue

D) Fading or multi-path dispersion

View answer
Q. 19 , What is the maximum speed offered by Free Space Optics (FSO) technology?

A) 150 Mbps/10 Mbps

B) 1.5 Gbps

C) 10 Gbps to 25 Gbps

D) 1.6 Tbps per fibre

View answer
Q. 20 , What is the use of Free Space Optics (FSO) technology in mobile network backhaul?

A) Niche solution in fringe areas

B) Mainstay wired backhaul

C) Most used technology for 3G/4G/5G

D) Used in developing markets

View answer
Q. 21 , What is the main limitation of WiFi backhaul?

A) Unlicensed nature of the technology

B) Limited bandwidth carrying capability

C) Fading or multi-path dispersion

D) Latency issue

View answer
Q. 22 , Which backhaul technology is a low-cost option that can be deployed in a matter of days?

A) Copper-based

B) Satellite

C) Fibre-optic

D) Microwave

View answer
Q. 23 , Which of the following is a technique used to convey multiple optical signals in parallel over a fiber optic cable?

a) Wi-Fi

b) Bluetooth

c) Wavelength Division Multiplexing (WDM)

d) Orthogonal Frequency Division Multiplexing (OFDM)

View answer
Q. 24 , Which of the following is a disadvantage of using fiber optic backhaul?

a) High cost of deployment

b) Limited bandwidth

c) Limited range

d) Limited availability

View answer
Q. 25 , What is backhaul in a mobile network?

a) A network that connects the macro cell to the small cells

b) A transport network that connects the core network and the RAN/Cell Site

c) A connection between the cell tower and the internet service provider's network

d) A high-capacity wireless channel to get packets to the microwave or fiber links

View answer
Q. 26 , What is front haul in a mobile network?

a) A transport network that connects the core network and the RAN/Cell Site

b) A connection between the cell tower and the internet service provider's network

c) A connection in RAN infrastructure between the Baseband Unit (BBU) and Remote Radio Head (RRH)

d) A network that connects the macro cell to the small cells

View answer
Q. 27 , What is the difference between backhaul and front haul?

a) Backhaul connects the macro cell to the small cells, while front haul connects the core network and the RAN/Cell Site.

b) Backhaul connects the core network and the RAN/Cell Site, while front haul connects the macro cell to the small cells.

c) Backhaul and front haul are the same concept.

d) Backhaul and front haul are both wireless components of a mobile network.

View answer
Q. 28 , Which of the following components may be included in a backhaul?

a) Wired

b) Fiber optic

c) Wireless

d) All of the above

View answer
Q. 29 , Which technology is typically used in the backbone network of a mobile network?

a) Copper-based wire line

b) Satellite communications

c) OFC

d) Point-to-multipoint wireless technologies

View answer
Q. 30 , What is the main purpose of mobile backhaul?

a) To connect the cell tower to the rest of the world

b) To connect the core network and the RAN/Cell Site

c) To supplement the backhaul connection between the BBU and central network core

d) To support a mix of voice, video, text and data traffic originating from and terminating to mobile devices.

View answer
Q. 31 , Which network type commonly implements backhaul?

a) Fixed-line network

b) Satellite network

c) Mobile network

d) All of the above

View answer
Q. 32 , Which technology is being phased out as capacity and latency requirements become higher in 4G and 5G networks?

a) Fiber-based backhaul

b) Copper-based wire line

c) Satellite communications

d) Point-to-multipoint wireless technologies

View answer
Q. 33 , What is the significance of mobile backhaul in the era of 5G?

a) It will become less important

b) It will become more important

c) It will be phased out

d) It will be replaced by point-to-point wireless technologies

View answer
Q. 34 , What is the primary backhaul technology for 2G/3G?

A) Fibre-optic

B) Wireless

C) Copper-based

D) Satellite

View answer
Q. 35 , What is the bandwidth supported by the T1/E1 protocol?

A) 1.5 Mbps to 2 Mbps

B) 10 Gbps to 25 Gbps

C) 150 Mbps/10 Mbps

D) 1.5 Gbps

View answer
Q. 36 , What technique can be used to enable multiple optical signals to be conveyed in parallel on different wavelengths or colors of light?

A) OFDM

B) WDM

C) CDWM

D) DWDM

View answer
Q. 37 , What is the main limitation of fibre as a backhaul technology?

A) Cost and logistics of deploying fibre

B) Fading or multi-path dispersion

C) Limited bandwidth carrying capability

D) Latency issue

View answer
Q. 38 , What is the most used backhaul technology for 3G/4G/5G?

A) Copper-based

B) Satellite

C) Fibre-optic

D) Microwave

View answer
Q. 39 , What is the range of data throughput capabilities of V-band and E-band microwave backhaul links?

A) 150 Mbps/10 Mbps

B) 1.5 Gbps

C) 10 Gbps to 25 Gbps

D) 1.6 Tbps per fibre

View answer
Q. 40 , What is the advantage of using LOS backhaul?

A) Low-cost option

B) Can be deployed in a matter of days

C) Little fading or multi-path dispersion

D) Can relay information back to a central base station

View answer
Q. 41 , What technology does NLOS backhaul use to relay information back to a central base station?

A) OFDM

B) WDM

C) CDWM

D) DWDM

View answer
Q. 42 , What is the main challenge of using satellite backhaul?

A) Cost and logistics of deploying satellite

B) Limited bandwidth carrying capability

C) Latency issue

D) Fading or multi-path dispersion

View answer
Q. 43 , What is the maximum speed offered by Free Space Optics (FSO) technology?

A) 150 Mbps/10 Mbps

B) 1.5 Gbps

C) 10 Gbps to 25 Gbps

D) 1.6 Tbps per fibre

View answer
Q. 44 , What is the use of Free Space Optics (FSO) technology in mobile network backhaul?

A) Niche solution in fringe areas

B) Mainstay wired backhaul

C) Most used technology for 3G/4G/5G

D) Used in developing markets

View answer
Q. 45 , What is the main limitation of WiFi backhaul?

A) Unlicensed nature of the technology

B) Limited bandwidth carrying capability

C) Fading or multi-path dispersion

D) Latency issue

View answer
Q. 46 , Which backhaul technology is a low-cost option that can be deployed in a matter of days?

A) Copper-based

B) Satellite

C) Fibre-optic

D) Microwave

View answer
Q. 47 , Which of the following is a technique used to convey multiple optical signals in parallel over a fiber optic cable?

a) Wi-Fi

b) Bluetooth

c) Wavelength Division Multiplexing (WDM)

d) Orthogonal Frequency Division Multiplexing (OFDM)

View answer
Q. 48 , Which of the following is a disadvantage of using fiber optic backhaul?

a) High cost of deployment

b) Limited bandwidth

c) Limited range

d) Limited availability

View answer
Q. 49 , What is backhaul in a mobile network?

a) A network that connects the macro cell to the small cells

b) A transport network that connects the core network and the RAN/Cell Site

c) A connection between the cell tower and the internet service provider's network

d) A high-capacity wireless channel to get packets to the microwave or fiber links

View answer
Q. 50 , What is front haul in a mobile network?

a) A transport network that connects the core network and the RAN/Cell Site

b) A connection between the cell tower and the internet service provider's network

c) A connection in RAN infrastructure between the Baseband Unit (BBU) and Remote Radio Head (RRH)

d) A network that connects the macro cell to the small cells

View answer
Q. 51 , What is the difference between backhaul and front haul?

a) Backhaul connects the macro cell to the small cells, while front haul connects the core network and the RAN/Cell Site.

b) Backhaul connects the core network and the RAN/Cell Site, while front haul connects the macro cell to the small cells.

c) Backhaul and front haul are the same concept.

d) Backhaul and front haul are both wireless components of a mobile network.

View answer
Q. 52 , Which of the following components may be included in a backhaul?

a) Wired

b) Fiber optic

c) Wireless

d) All of the above

View answer
Q. 53 , Which technology is typically used in the backbone network of a mobile network?

a) Copper-based wire line

b) Satellite communications

c) OFC

d) Point-to-multipoint wireless technologies

View answer
Q. 54 , What is the main purpose of mobile backhaul?

a) To connect the cell tower to the rest of the world

b) To connect the core network and the RAN/Cell Site

c) To supplement the backhaul connection between the BBU and central network core

d) To support a mix of voice, video, text and data traffic originating from and terminating to mobile devices.

View answer
Q. 55 , Which network type commonly implements backhaul?

a) Fixed-line network

b) Satellite network

c) Mobile network

d) All of the above

View answer
Q. 56 , Which technology is being phased out as capacity and latency requirements become higher in 4G and 5G networks?

a) Fiber-based backhaul

b) Copper-based wire line

c) Satellite communications

d) Point-to-multipoint wireless technologies

View answer
Q. 57 , What is the significance of mobile backhaul in the era of 5G?

a) It will become less important

b) It will become more important

c) It will be phased out

d) It will be replaced by point-to-point wireless technologies

View answer
Q. 58 , What is the primary backhaul technology for 2G/3G?

A) Fibre-optic

B) Wireless

C) Copper-based

D) Satellite

View answer
Q. 59 , What is the bandwidth supported by the T1/E1 protocol?

A) 1.5 Mbps to 2 Mbps

B) 10 Gbps to 25 Gbps

C) 150 Mbps/10 Mbps

D) 1.5 Gbps

View answer
Q. 60 , What technique can be used to enable multiple optical signals to be conveyed in parallel on different wavelengths or colors of light?

A) OFDM

B) WDM

C) CDWM

D) DWDM

View answer
Q. 61 , What is the main limitation of fibre as a backhaul technology?

A) Cost and logistics of deploying fibre

B) Fading or multi-path dispersion

C) Limited bandwidth carrying capability

D) Latency issue

View answer
Q. 62 , What is the most used backhaul technology for 3G/4G/5G?

A) Copper-based

B) Satellite

C) Fibre-optic

D) Microwave

View answer
Q. 63 , What is the range of data throughput capabilities of V-band and E-band microwave backhaul links?

A) 150 Mbps/10 Mbps

B) 1.5 Gbps

C) 10 Gbps to 25 Gbps

D) 1.6 Tbps per fibre

View answer
Q. 64 , What is the advantage of using LOS backhaul?

A) Low-cost option

B) Can be deployed in a matter of days

C) Little fading or multi-path dispersion

D) Can relay information back to a central base station

View answer
Q. 65 , What technology does NLOS backhaul use to relay information back to a central base station?

A) OFDM

B) WDM

C) CDWM

D) DWDM

View answer
Q. 66 , What is the main challenge of using satellite backhaul?

A) Cost and logistics of deploying satellite

B) Limited bandwidth carrying capability

C) Latency issue

D) Fading or multi-path dispersion

View answer
Q. 67 , What is the maximum speed offered by Free Space Optics (FSO) technology?

A) 150 Mbps/10 Mbps

B) 1.5 Gbps

C) 10 Gbps to 25 Gbps

D) 1.6 Tbps per fibre

View answer
Q. 68 , What is the use of Free Space Optics (FSO) technology in mobile network backhaul?

A) Niche solution in fringe areas

B) Mainstay wired backhaul

C) Most used technology for 3G/4G/5G

D) Used in developing markets

View answer
Q. 69 , What is the main limitation of WiFi backhaul?

A) Unlicensed nature of the technology

B) Limited bandwidth carrying capability

C) Fading or multi-path dispersion

D) Latency issue

View answer
Q. 70 , Which backhaul technology is a low-cost option that can be deployed in a matter of days?

A) Copper-based

B) Satellite

C) Fibre-optic

D) Microwave

View answer
Q. 71 , Which of the following is a technique used to convey multiple optical signals in parallel over a fiber optic cable?

a) Wi-Fi

b) Bluetooth

c) Wavelength Division Multiplexing (WDM)

d) Orthogonal Frequency Division Multiplexing (OFDM)

View answer
Q. 72 , Which of the following is a disadvantage of using fiber optic backhaul?

a) High cost of deployment

b) Limited bandwidth

c) Limited range

d) Limited availability

View answer
Q. 73 , What is backhaul in a mobile network?

a) A network that connects the macro cell to the small cells

b) A transport network that connects the core network and the RAN/Cell Site

c) A connection between the cell tower and the internet service provider's network

d) A high-capacity wireless channel to get packets to the microwave or fiber links

View answer
Q. 74 , What is front haul in a mobile network?

a) A transport network that connects the core network and the RAN/Cell Site

b) A connection between the cell tower and the internet service provider's network

c) A connection in RAN infrastructure between the Baseband Unit (BBU) and Remote Radio Head (RRH)

d) A network that connects the macro cell to the small cells

View answer
Q. 75 , What is the difference between backhaul and front haul?

a) Backhaul connects the macro cell to the small cells, while front haul connects the core network and the RAN/Cell Site.

b) Backhaul connects the core network and the RAN/Cell Site, while front haul connects the macro cell to the small cells.

c) Backhaul and front haul are the same concept.

d) Backhaul and front haul are both wireless components of a mobile network.

View answer
Q. 76 , Which of the following components may be included in a backhaul?

a) Wired

b) Fiber optic

c) Wireless

d) All of the above

View answer
Q. 77 , Which technology is typically used in the backbone network of a mobile network?

a) Copper-based wire line

b) Satellite communications

c) OFC

d) Point-to-multipoint wireless technologies

View answer
Q. 78 , What is the main purpose of mobile backhaul?

a) To connect the cell tower to the rest of the world

b) To connect the core network and the RAN/Cell Site

c) To supplement the backhaul connection between the BBU and central network core

d) To support a mix of voice, video, text and data traffic originating from and terminating to mobile devices.

View answer
Q. 79 , Which network type commonly implements backhaul?

a) Fixed-line network

b) Satellite network

c) Mobile network

d) All of the above

View answer
Q. 80 , Which technology is being phased out as capacity and latency requirements become higher in 4G and 5G networks?

a) Fiber-based backhaul

b) Copper-based wire line

c) Satellite communications

d) Point-to-multipoint wireless technologies

View answer
Q. 81 , What is the significance of mobile backhaul in the era of 5G?

a) It will become less important

b) It will become more important

c) It will be phased out

d) It will be replaced by point-to-point wireless technologies

View answer
Q. 82 , What is the primary backhaul technology for 2G/3G?

A) Fibre-optic

B) Wireless

C) Copper-based

D) Satellite

View answer
Q. 83 , What is the bandwidth supported by the T1/E1 protocol?

A) 1.5 Mbps to 2 Mbps

B) 10 Gbps to 25 Gbps

C) 150 Mbps/10 Mbps

D) 1.5 Gbps

View answer
Q. 84 , What technique can be used to enable multiple optical signals to be conveyed in parallel on different wavelengths or colors of light?

A) OFDM

B) WDM

C) CDWM

D) DWDM

View answer
Q. 85 , What is the main limitation of fibre as a backhaul technology?

A) Cost and logistics of deploying fibre

B) Fading or multi-path dispersion

C) Limited bandwidth carrying capability

D) Latency issue

View answer
Q. 86 , What is the most used backhaul technology for 3G/4G/5G?

A) Copper-based

B) Satellite

C) Fibre-optic

D) Microwave

View answer
Q. 87 , What is the range of data throughput capabilities of V-band and E-band microwave backhaul links?

A) 150 Mbps/10 Mbps

B) 1.5 Gbps

C) 10 Gbps to 25 Gbps

D) 1.6 Tbps per fibre

View answer
Q. 88 , What is the advantage of using LOS backhaul?

A) Low-cost option

B) Can be deployed in a matter of days

C) Little fading or multi-path dispersion

D) Can relay information back to a central base station

View answer
Q. 89 , What technology does NLOS backhaul use to relay information back to a central base station?

A) OFDM

B) WDM

C) CDWM

D) DWDM

View answer
Q. 90 , What is the main challenge of using satellite backhaul?

A) Cost and logistics of deploying satellite

B) Limited bandwidth carrying capability

C) Latency issue

D) Fading or multi-path dispersion

View answer
Q. 91 , What is the maximum speed offered by Free Space Optics (FSO) technology?

A) 150 Mbps/10 Mbps

B) 1.5 Gbps

C) 10 Gbps to 25 Gbps

D) 1.6 Tbps per fibre

View answer
Q. 92 , What is the use of Free Space Optics (FSO) technology in mobile network backhaul?

A) Niche solution in fringe areas

B) Mainstay wired backhaul

C) Most used technology for 3G/4G/5G

D) Used in developing markets

View answer
Q. 93 , What is the main limitation of WiFi backhaul?

A) Unlicensed nature of the technology

B) Limited bandwidth carrying capability

C) Fading or multi-path dispersion

D) Latency issue

View answer
Q. 94 , Which backhaul technology is a low-cost option that can be deployed in a matter of days?

A) Copper-based

B) Satellite

C) Fibre-optic

D) Microwave

View answer
Q. 95 , Which of the following is a technique used to convey multiple optical signals in parallel over a fiber optic cable?

a) Wi-Fi

b) Bluetooth

c) Wavelength Division Multiplexing (WDM)

d) Orthogonal Frequency Division Multiplexing (OFDM)

View answer
Q. 96 , Which of the following is a disadvantage of using fiber optic backhaul?

a) High cost of deployment

b) Limited bandwidth

c) Limited range

d) Limited availability

View answer
Q. 97 , What is front haul in a mobile network?

a) A transport network that connects the core network and the RAN/Cell Site

b) A connection between the cell tower and the internet service provider's network

c) A connection in RAN infrastructure between the Baseband Unit (BBU) and Remote Radio Head (RRH)

d) A network that connects the macro cell to the small cells

View answer
Q. 98 , What is the difference between backhaul and front haul?

a) Backhaul connects the macro cell to the small cells, while front haul connects the core network and the RAN/Cell Site.

b) Backhaul connects the core network and the RAN/Cell Site, while front haul connects the macro cell to the small cells.

c) Backhaul and front haul are the same concept.

d) Backhaul and front haul are both wireless components of a mobile network.

View answer
Q. 99 , Which of the following components may be included in a backhaul?

a) Wired

b) Fiber optic

c) Wireless

d) All of the above

View answer
Q. 100 , Which technology is typically used in the backbone network of a mobile network?

a) Copper-based wire line

b) Satellite communications

c) OFC

d) Point-to-multipoint wireless technologies

View answer
Q. 101 , What is the main purpose of mobile backhaul?

a) To connect the cell tower to the rest of the world

b) To connect the core network and the RAN/Cell Site

c) To supplement the backhaul connection between the BBU and central network core

d) To support a mix of voice, video, text and data traffic originating from and terminating to mobile devices.

View answer
Q. 102 , Which network type commonly implements backhaul?

a) Fixed-line network

b) Satellite network

c) Mobile network

d) All of the above

View answer
Q. 103 , Which technology is being phased out as capacity and latency requirements become higher in 4G and 5G networks?

a) Fiber-based backhaul

b) Copper-based wire line

c) Satellite communications

d) Point-to-multipoint wireless technologies

View answer
Q. 104 , What is the significance of mobile backhaul in the era of 5G?

a) It will become less important

b) It will become more important

c) It will be phased out

d) It will be replaced by point-to-point wireless technologies

View answer
Q. 105 , What is the primary backhaul technology for 2G/3G?

A) Fibre-optic

B) Wireless

C) Copper-based

D) Satellite

View answer
Q. 106 , What is the bandwidth supported by the T1/E1 protocol?

A) 1.5 Mbps to 2 Mbps

B) 10 Gbps to 25 Gbps

C) 150 Mbps/10 Mbps

D) 1.5 Gbps

View answer
Q. 107 , What technique can be used to enable multiple optical signals to be conveyed in parallel on different wavelengths or colors of light?

A) OFDM

B) WDM

C) CDWM

D) DWDM

View answer
Q. 108 , What is the main limitation of fibre as a backhaul technology?

A) Cost and logistics of deploying fibre

B) Fading or multi-path dispersion

C) Limited bandwidth carrying capability

D) Latency issue

View answer
Q. 109 , What is the most used backhaul technology for 3G/4G/5G?

A) Copper-based

B) Satellite

C) Fibre-optic

D) Microwave

View answer
Q. 110 , What is the range of data throughput capabilities of V-band and E-band microwave backhaul links?

A) 150 Mbps/10 Mbps

B) 1.5 Gbps

C) 10 Gbps to 25 Gbps

D) 1.6 Tbps per fibre

View answer
Q. 111 , What is the advantage of using LOS backhaul?

A) Low-cost option

B) Can be deployed in a matter of days

C) Little fading or multi-path dispersion

D) Can relay information back to a central base station

View answer
Q. 112 , What technology does NLOS backhaul use to relay information back to a central base station?

A) OFDM

B) WDM

C) CDWM

D) DWDM

View answer
Q. 113 , What is the main challenge of using satellite backhaul?

A) Cost and logistics of deploying satellite

B) Limited bandwidth carrying capability

C) Latency issue

D) Fading or multi-path dispersion

View answer
Q. 114 , What is the maximum speed offered by Free Space Optics (FSO) technology?

A) 150 Mbps/10 Mbps

B) 1.5 Gbps

C) 10 Gbps to 25 Gbps

D) 1.6 Tbps per fibre

View answer
Q. 115 , What is the use of Free Space Optics (FSO) technology in mobile network backhaul?

A) Niche solution in fringe areas

B) Mainstay wired backhaul

C) Most used technology for 3G/4G/5G

D) Used in developing markets

View answer
Q. 116 , What is the main limitation of WiFi backhaul?

A) Unlicensed nature of the technology

B) Limited bandwidth carrying capability

C) Fading or multi-path dispersion

D) Latency issue

View answer
Q. 117 , Which backhaul technology is a low-cost option that can be deployed in a matter of days?

A) Copper-based

B) Satellite

C) Fibre-optic

D) Microwave

View answer
Q. 118 , Which of the following is a technique used to convey multiple optical signals in parallel over a fiber optic cable?

a) Wi-Fi

b) Bluetooth

c) Wavelength Division Multiplexing (WDM)

d) Orthogonal Frequency Division Multiplexing (OFDM)

View answer
Q. 119 , Which of the following is a disadvantage of using fiber optic backhaul?

a) High cost of deployment

b) Limited bandwidth

c) Limited range

d) Limited availability

View answer
Q. 120 , Which backhaul technology is most commonly used despite fiber optic being the preferred choice?

a) Copper-based backhaul

b) Satellite backhaul

c) Wireless backhaul (microwave)

d) Wi-Fi backhaul

View answer
Q. 121 , Which of the following is a characteristic of LOS backhaul?

a) Uses OFDM technology

b) Can be used in NLOS mode

c) Uses a highly directed beam with little fading

d) Is more 'plug and play' than NLOS backhaul

View answer
Q. 122 , Which backhaul technology is typically used in fringe areas and sometimes as an emergency/temporary measure?

a) Copper-based backhaul

b) Satellite backhaul

c) Wireless backhaul (microwave)

d) Free Space Optics (FSO)

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Q. 123 , Which of the following is a disadvantage of using satellite backhaul?

a) Limited bandwidth

b) High latency

c) High cost of deployment

d) Limited range

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Q. 124 , What is Free Space Optics (FSO)?

a) A technique used to convey multiple optical signals in parallel over a fiber optic cable

b) A low-latency technology that offers speeds comparable to fiber optics

c) A wireless technology that uses microwaves to transmit data

d) A technology that uses Wi-Fi for building-to-building connectivity

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Q. 125 , Which backhaul technology has marginal use for macrocell backhaul due to interference and poor transmission ranges?

a) Copper-based backhaul

b) Satellite backhaul

c) Wireless backhaul (microwave)

d) Wi-Fi backhaul

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Q. 126 , Which of the following is a characteristic of NLOS backhaul?

a) Uses OFDM technology

b) Can be used in LOS mode

c) Uses a highly directed beam with little fading

d) Is more 'plug and play' than LOS backhaul

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Q. 127 , Which of the following is a technique used in Wavelength Division Multiplexing (WDM)?

a) Orthogonal Frequency Division Multiplexing (OFDM)

b) Time Division Multiplexing (TDM)

c) Frequency Division Multiplexing (FDM)

d) Code Division Multiplexing (CDM)

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Q. 128 , Which of the following backhaul technologies is still an option for indoor small cells and in-building and public venue small cell networks?

a) Copper-based backhaul

b) Satellite backhaul

c) Wireless backhaul (microwave)

d) Free Space Optics (FSO)

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Q. 129 , What is LTE-Advanced Pro or 4.5G?

A. A new type of mobile device

B. A technical innovation occurring on LTE

C. A new network infrastructure introduced in 5G

D. A type of satellite link for backhaul

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Q. 130 , What is the peak bandwidth of 4.5G?

A. 10Gbps

B. 5Gbps

C. 1Gbps

D. 500Mbps

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Q. 131 , What is the advantage of 4.5G over standard LTE?

A. Improved energy efficiency for IoT connections

B. Support of video traffic at 4K resolution to mobile devices

C. Both A and B

D. None of the above

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Q. 132 , What is the new 5G Core Network (5GC)?

A. A new type of mobile device

B. A new type of satellite link for backhaul

C. A new core network in 5G

D. A new type of radio technology in 5G

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Q. 133 , What is the NR in 5G?

A. Network Requirements

B. New Radio

C. Network Routing

D. None of the above

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Q. 134 , What does NR offer in 5G?

A. Lower bandwidth speeds in comparison to 3G and 4G

B. Higher frequency spectrum

C. Smaller cell sizes

D. All of the above

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Q. 135 , What is network slicing in 5G?

A. A way to slice a mobile device into smaller pieces

B. A way to slice a network infrastructure into bespoke logical networks

C. A way to slice a satellite link into smaller pieces

D. None of the above

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Q. 136 , What is the impact of network slicing on backhaul?

A. No impact

B. Positive impact

C. Negative impact

D. Both positive and negative impact

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Q. 137 , What is the challenge of backhaul strategy/evolution with an increase in subscriptions?

A. Coping with a decrease in subscriptions

B. Coping with a large number of “low bandwidth” users

C. Coping with a large number of “high bandwidth” users

D. None of the above

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Q. 138 , What is the result of increasing subscriber total and increased access bandwidth usage?

A. Mobile data traffic growth

B. Decrease in mobile data traffic

C. No change in mobile data traffic

D. None of the above

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Q. 139 , What are the more stringent end-to-end latency requirements in 5G?

A. 5G mission-critical applications

B. Increased video streaming

C. Both A and B

D. None of the above

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Q. 140 , What is the impact of higher latency backhaul links on backhaul?

A. They carry only 2G/3G and non-latency sensitive LTE services

B. They carry only 5G services

C. They carry all types of services

D. None of the above

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Q. 141 , What is network densification?

A. Decrease in the number of macrocells

B. Increase in the number of macrocells

C. No change in the number of macrocells

D. None of the above

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Q. 142 , What are the new macrocells in network densification?

A. Only 4G technologies

B. Only 5G technologies

C. Both 4G and 5G technologies

D. None of the above

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Q. 143 , What is the name given to the partitioning of the physical network infrastructure into bespoke logical networks in the RAN and 5G core targeted to the needs of a specific application or use case?

a) Network growth

b) Subscriber growth

c) Mobile data traffic growth

d) Network slicing

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Q. 144 , What is the peak bandwidth of 4.5G, which is around 8-10x higher than standard LTE?

a) 500 Mbps

b) 1 Gbps

c) 2 Gbps

d) 10 Gbps

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Q. 145 , What is the name of the new 5G Core Network?

a) 5G NR

b) 5GC

c) LTE-Advanced Pro

d) 4.5G

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Q. 146 , What is the impact of slicing on the backhaul network?

a) It results in extra traffic to backhaul.

b) It results in more stringent end-to-end latency requirements.

c) It enables the support of video traffic at 4K resolution to mobile devices.

d) It enables wider channel bandwidths at the access.

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Q. 147 , What is the impact of both 5G mission-critical applications and increased video streaming on the backhaul latency budget?

a) It makes the backhaul latency budget more lenient.

b) It has no impact on the backhaul latency budget.

c) It makes the backhaul latency budget more stringent.

d) It makes the backhaul latency budget irrelevant.

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Q. 148 , What is MEC?

a) A centralized computing architecture

b) A distributed computing architecture

c) An access network

d) A radio access network

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Q. 149 , What is the advantage of using caching in MEC?

a) It enhances the customer experience by storing frequently accessed contents

b) It increases backhaul demand

c) It requires high bandwidth

d) It incurs a cost to implement core functions at the edge

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Q. 150 , What is local breakout in MEC?

a) It is a process to access the contents at a higher latency

b) It is a process to reduce the load on mobile backhaul

c) It is a process to increase the complexity of the cell site

d) It is a process to transfer the baseband signals

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Q. 151 , What is Cloud RAN?

a) A centralized radio access network

b) A distributed radio access network

c) An access network

d) A backhaul network

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Q. 152 , What is the advantage of Cloud RAN?

a) It increases complexities at the cell site

b) It reduces the capabilities at the cell site

c) It reduces the fronthaul cost

d) It is suitable for traditional macrocell base stations

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Q. 153 , What is low-level split in Cloud RAN?

a) Only the physical layer is processed at the edge site while all the electronics are concentrated in the edge site

b) All the layers are processed at the edge site while all the electronics are concentrated in the cell site

c) All the layers are processed at the cell site while all the electronics are concentrated in the edge site

d) Only the physical layer is processed at the cell site while all the electronics are concentrated in the edge site

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Q. 154 , What is high-level split in Cloud RAN?

a) Only the physical layer is processed at the edge site while all the electronics are concentrated in the edge site

b) All the layers are processed at the edge site while all the electronics are concentrated in the cell site

c) All the layers are processed at the cell site while all the electronics are concentrated in the edge site

d) Only the physical layer is processed at the cell site while all the electronics are concentrated in the edge site

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Q. 155 , What is an RRH?

a) A remote radio unit

b) A remote radio transceiver

c) A remote radio head

d) All of the above

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Q. 156 , What is the advantage of using wireless links instead of fibre optic cables for connecting RRH?

a) It requires more digging and trenches

b) It requires leased circuits from telcos

c) It requires dark fibre or way-leaves

d) It allows quick installation without the need for fibre optics

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Q. 157 , What is FTTA?

a) A centralized computing architecture

b) A distributed computing architecture

c) A backhaul network

d) An access network

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Q. 158 , What is the main benefit of using MEC in mobile networks?

A) Improved backhaul demand

B) Reduced latency

C) Reduced complexity at cell sites

D) More centralized computing capabilities

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Q. 159 , Which of the following is true about Cloud RAN architecture?

A) It is suitable for traditional macrocell base stations

B) It requires significant processing capabilities at the cell site

C) It reduces complexities and capabilities at the cell site

D) It is only suitable for small cell networks

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Q. 160 , What is an RRH in mobile networks?

A) A remote base station unit

B) A remote radio transceiver

C) A centralized computing unit

D) A fiber optic cable for backhaul

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Q. 161 , What is the importance of RRHs in mobile networks?

A) They reduce the need for MIMO operation

B) They decrease the efficiency of base stations

C) They facilitate easier physical location for gap coverage problems

D) They use outdated RF component technology

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Q. 162 , What is the main benefit of using FTTA architecture in mobile networks?

A) Reduced base station footprint

B) Higher power requirements

C) Fewer distributed antenna sites

D) More power and signal components at the base station

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