What two methods does Frame Relay technology use to process frames that contain errors? (Choose two.)

What two methods does Frame Relay technology use to process frames that contain errors? (Choose two.)

• Frame Relay services depend on the upper layer protocols to handle error recovery.
• It requires the receiving device to request that the sender retransmit erroneous frames.
• FECN, BECN, and DE bits are set in the frames to minimize errors.
• The receiving device drops any frames that contain errors without notifying the sender.
• The frame relay switch notifies the sender that errors were detected.

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