Question: How do Vertical Applications interact with SEAL Services, according to the Service Enabler Architecture Layer for Verticals (SEAL) functional architecture?
Option 1: Through direct communication with SEAL's functional entities via reference points.
Option 2: By consuming SEAL services in the form of Application Programming Interfaces (APIs) on a service-based interface.
Option 3: Via traditional signaling protocols used in wireless communications.
Option 4: Through a dedicated, non-service-based interface designed exclusively for vertical applications.
Explanation: The correct answer highlights the importance of service-based interfaces and APIs in enabling vertical applications to consume SEAL services, facilitating flexibility, scalability, and ease of integration within the telecom ecosystem.