Which three actions might a Frame Relay switch perform when it detects an excessive build-up of frames in its queue? (Choose three.)

Which three actions might a Frame Relay switch perform when it detects an excessive build-up of frames in its queue? (Choose three.)

• puts a hold on accepting frames in excess of the CIR
• drops frames from the queue that have the DE bit set
• reduces the number of frames it sends over the link
• re-negotiates flow control with the connected device
• sets the FECN bit on all frames it receives on the congested link
• sets the BECN bit on all frames it places on the congested link

Exam with this question: CCNA Exploration 4: EWAN Chapter 3 Exam