How does the Ethernet switch process the incoming traffic using port-based memory buffering?

How does the Ethernet switch process the incoming traffic using port-based memory buffering?

• The frames are stored in queues that are linked to specific incoming ports.
• The frames are stored in queues that are linked to specific outgoing ports.
• The frames are transmitted to the outgoing port immediately.
• The frames are stored in queues that are linked to the common memory area.

Exam with this question: CCNA 3 Exploration v4.0 Chapter 2 Quiz