The final test

E1 Every count in this course rests on one rule. What does that rule test?

• Whether the row belongs to one of the CT working groups
• Whether at least three IMS change requests name the row
• Whether the title of the work plan row contains the letters IMS
• Whether the acronym of the row carries the letters IMS with no capital letter in front of them

E2 The founding work plan row has one document against its name. Why is that not a measure of how much Release 5 work was done?

• Because no IMS document earlier than 2015-01-23 carries a work item acronym in this store
• Because the work plan holds no document count of any kind
• Because Release 5 rows were never given acronyms
• Because change requests were not counted until Release 8

E3 1680 IMS documents name TS 24.229 as the document they change. Who owns it, and what does that number measure?

• SA1, and it counts the requirements the document has to meet
• CT1, and it counts edits proposed against one document — not how important the document is
• SA2, and it counts the clauses the document holds
• CT3, and it counts the networks the document reaches

E4 Which release carries the most IMS work plan rows, and which carries the most documents?

• Rel-16 with 13 rows; Rel-8 with 943 documents
• Rel-9 with 45 rows; Rel-12 with 433 documents
• Rel-8 with 64 rows; Rel-16 with 943 documents
• Rel-12 with 60 rows; Rel-13 with 830 documents

E5 The three largest document counts on the group map are CT1 with 2169, CT4 with 746 and CT3 with 719. What does that shape say?

• That the CT groups approve what the SA groups write
• That the CT groups own every specification this work touches
• That IMS is a radio subject, because the RAN groups file through the CT groups
• That IMS is a core-network subject — the weight sits where the bytes on the wire are written

E6 Which 5G core document — one with no IMS in its name — carries the most IMS change traffic?

• TS 29.562, the 5G system's Home Subscriber Server services, with 230
• TS 29.514, the policy authorisation service, with 100
• TS 29.513, policy and charging signalling flows, with 75
• TS 23.501, the architecture of the 5G system, with 33

E7 A change request carries the outcome word 'agreed'. What may be concluded from it?

• That the specification it aims at has been published
• That this one document was agreed at the meeting it was brought to, and nothing about the work behind it
• That the room agreed with the idea in it
• That the work item behind it is finished

E8 The Release 8 and the Release 20 turns of the protocol alignment work open with the same justification. What is the difference, and what does it show?

• The Release 20 turn carries no justification at all
• The Release 20 turn names the 5G core and the Release 8 turn does not
• One word — 'provides' became 'provided' — and it shows the reason for the work has not changed
• A whole new paragraph about the 5G core

E9 FS_IMSRE_SEC has the word Deleted at the front of its own name, an approved study paper SP-251237, and 16 meeting documents. How is that written down here?

• As the approved paper and the 16 documents, leaving the word out
• As a work item that was deleted
• As a work item that is running
• All of it together, because Deleted is typed into a title by hand and is not a status field

E10 The Release 20 architecture study sits under two report numbers that disagree. What does this course do about it?

• Writes both numbers out and says the data does not settle which is right
• Leaves both numbers out of the course
• Uses TR 23.801-03, the number the work item's own table names
• Uses TR 23.801-04, the number 47 IMS documents name

E11 Which document defines the stage 2 service description of IMS?

• TS 23.228
• TS 24.229
• TS 22.228

E12 What decides whether a work plan row belongs to this course?

• The row names one of the four IMS specifications
• The acronym of the row carries IMS with no capital letter in front of it
• The title of the row contains "IMS"

E13 What is the title of the founding IMS row in the work plan?

• Provisioning of IP-based multimedia services
• Support of IP multimedia services
• IP Multimedia Subsystem, Stage 2

E14 What did IMS-CCR-IWCS set out to do?

• Address interworking between the IM CN subsystem and circuit switched networks, in order to support basic voice calls
• Replace the circuit switched network entirely
• Define how two IMS networks connect to each other

E15 Which release carries the most IMS work plan rows?

• Rel-8, with 64
• Rel-9, with 45
• Rel-12, with 60