The final test

E1 How many working groups does TSG RAN have, and how many of them still meet?

• Six groups, five still meeting
• Six groups, all still meeting
• Seven groups, six still meeting
• Five groups, all still meeting

E2 How many of the 3599 active 3GPP documents does RAN own?

• 198
• 1059
• 3230
• 3599

E3 Which group owns TS 38.331, the document that defines every message of the radio connection?

• RAN3
• RAN5
• RAN1
• RAN2

E4 Which RAN document has the most documents changing it?

• 38.331, the radio connection protocol
• 38.133, the radio resource management requirements
• 38.401, the architecture description
• 38.300, the overall description

E5 What is an NG-RAN node, according to TS 38.300?

• Any base station, whatever core network it is attached to
• Either a gNB or an ng-eNB
• Only a gNB
• A gNB, an ng-eNB or an AMF

E6 In the NR layer-2 structure, what does the MAC sublayer offer to the sublayer above it?

• Radio bearers
• QoS flows
• Logical channels
• Transport channels

E7 In RRC_INACTIVE, who initiates paging?

• The radio network
• The 5G core only
• The device, by polling
• Nobody; a device in this state cannot be paged

E8 What is the finest granularity of quality-of-service differentiation in a PDU session?

• The QoS flow
• The individual packet
• The PDU session itself
• The data radio bearer

E9 Where is user plane data ciphered and integrity protected?

• In the gNB
• In the AMF
• In the UPF
• In the SMF

E10 How are the five open RAN working groups scheduled?

• One group per week over five consecutive weeks
• Each group sets its own dates independently
• Always in the week after the plenary
• All in the same week, in the same place

E11 How many working groups does TSG RAN have, and how many of them still meet?

• Six groups, five still meeting
• Five groups, all still meeting
• Six groups, all still meeting

E12 Which group owns TS 38.331, the document that defines every message of the radio connection?

• RAN2
• RAN3
• RAN1

E13 Which RAN group owns the most active documents?

• RAN3, with 168
• RAN1
• RAN4, with 427

E14 Which two interfaces join an NG-RAN node to the rest of the world?

• Uu to other base stations, NG to the core
• Xn to other NG-RAN nodes, NG to the 5G core
• F1 to other base stations, S1 to the core

E15 Which sublayer does the ciphering of user data?

• PDCP
• SDAP
• MAC

E16 In RRC_INACTIVE, who initiates paging?

• Nobody; a device in this state cannot be paged
• The 5G core
• The radio network

E17 In the four-step random access procedure, what is in MSG1?

• A preamble on PRACH
• A preamble and a payload
• The device's identity and its first message to the core

E18 What is the finest granularity of quality-of-service differentiation in a PDU session?

• The data radio bearer
• The PDU session
• The QoS flow

E19 How many active documents does the 38 series hold?

• 264
• 1059
• 3599

E20 Which RAN document has the most documents changing it?

• 38.331, the radio connection protocol
• 38.133, the radio resource management requirements
• 38.300, the overall description