What design strategy should be followed when designing a network that uses video on demand?

What design strategy should be followed when designing a network that uses video on demand?

• implement the appropriate routing protocol to ensure that data segments arrive in order
• implement different QoS queues based on the type of video traffic being distributed
• install servers to store the data in a centrally located server farm
• configure queuing in the core routers to ensure high availability

Exam with this question: CCNA Discovery 4: DCompNtwk Chapter 4 Exam