Question: In the context of Configuration Management (CM) for Telecommunication networks, how are attributes modeling associations with a cardinality of more than one referred Managed Object (MO) represented in the Mapping of Network Resources?
Option 1: As a single MOReference containing multiple distinguished names
Option 2: As an AttributeValueChange notification without storing the references
Option 3: By duplicating the attribute for each associated MO
Option 4: As an MOReferenceSet, containing a sequence of MO references
Explanation: This is correct because when the cardinality for an association allows more than one referred MO, the reference attribute needs to accommodate multiple values. An MOReferenceSet is specifically designed for this purpose, allowing it to contain a sequence (or set) of MO references, each pointing to a different associated Managed Object. This enables efficient management and updating of multiple associations, such as emitting an AttributeValueChange notification if any of these references are changed.