Question: What is a key characteristic of an NF service offered by a Network Function, as per the 5G System architecture?
Option 1: It is dependent on other NF services within the same Network Function.
Option 2: It is self-contained, reusable and uses management schemes independently of other NF services.
Option 3: It can only be accessed through a single interface operation.
Option 4: It cannot be used to build system procedures.
Explanation: According to the 5G System architecture, each NF service offered by a Network Function should be self-contained, reusable and use management schemes independently of other NF services. This allows for flexible and scalable network operations.