5G Certification

Question 1

Which functions can be tailored for smart grid meter reading services?

Answer 1

Mobility management

Question 2

What frequency bands is the C-Band supported by 5G?

Answer 2

3.4-4.2 GHz

Question 3

What is millimeter wave?

Answer 3

Band of spectrum that goes from 30Ghz to 300 Ghz

Question 4

What are 5G core network functions that belong to control plane?

Answer 4

PCF, SMF and AMF

Question 5

What are Cloud RAN benefits?

Answer 5

Unified architecture, Resource Pooling, Open platform and intelligent O&M, On Demand Employment, Intelligent Slicing.

Question 6

5G-V2X technology can be used for?

Answer 6

Advanced Driving, Sensor information sharing, Remote Driving, Vehicle Platooning.

Question 7

With the rapid development of mobile services and the emergence of new services, what are the challenges faced by mobile communication networks?

Answer 7

The number of network connections increasing, Diversified service scenarios, and Rapid growth of mobile data volume.

Question 8

Based on the C-V2X technology, multi-party collaboration among transportation participants can be implemented to facilitate intelligent transportation. The C-V2X includes:

Answer 8

V2V , V2N, V2I, V2P

Question 9

Which services can be better supported by 5G networks?

Answer 9

AR, Holographic Image service, 4K and 8k HD Video, VR

Question 10

For 5G network, what are the benefits of using a globally unified standard?

Answer 10

Supporting global roaming, Reducing industry chain risks and economies of scale.

Question 11

What are the causes of insufficient 5G uplink coverage?

Answer 11

UE transmit power is low, no beamforming is used in the uplink, and uplink slot assignment is few.

Question 12

Was 5G deployed all at once?

Answer 12

No, the 5G protocol is divided into 2 phases, Phase 1 and Phase 2, their protocols being called R15 and R16.

Question 13

Facts about 5G NSA?

Answer 13

The signaling of UE can be forwarded only by the eNodeB, Downlink user plane data can be sent to UE through eNodeB, Downlink user plan data can be sent to UE through gNodeB.

Question 14

Which is the interface between CU and DU in 5G base stations?

Answer 14

F1

Question 15

Which network architecture belongs to the SA architecture?

Answer 15

Option 2

Question 16

Which transmission network slicing technologies is supported by hard slicing of transmission network bandwitdth, and which is not?

Answer 16

Supported: ODUk, FlexETH, Port isolation

Not supported: VLAN

Question 17

What is the mainstream frequency of the C-V2X based IoV technology?

Answer 17

5905-5915 MHz

Question 18

The first bath of 5G was focused on which network application?

Answer 18

eMBB

Question 19

What are the three main network applications of 5G?

Answer 19

eMBB, uRLLC, mMTC

Question 20

In 5G system, spectrum utilization can be improved by using the F-OFDM technology. When the SCS is 30 kHZ, which system bandwidth is of the maximum spectrum utilization?

Answer 20

100 MHz

Question 21

How fast is eMBB?

Answer 21

10Gbps

Question 22

How many connections are possible with mMTC?

Answer 22

1 Million connections per square km

Question 23

What’s the latency provided by URLLC?

Answer 23

Up to 1ms

Question 24

What is network slicing?

Answer 24

It’s a specific form of virtualization to divide single network connection into multiple distinct virtual connections that provide different amounts of resources to different types of traffic. Ex. If you need internet for VR gaming you will be given a eMBB based network with Lower latency (uRLLC)