What parameter can be different on ports within an EtherChannel?

Question:
What parameter can be different on ports within an EtherChannel?

• speed
• DTP negotiation settings
• trunk encapsulation
• duplex

Explanation: All interfaces in an EtherChannel must be configured identically to form an EtherChannel. Specific settings that must be identical include:

+ Speed settings
+ Duplex settings
+ STP settings
+ VLAN membership (for access ports)
+ Native VLAN (for trunk ports)
+ Allowed VLANs (for trunk ports)
+ Trunking Encapsulation (ISL or 802.1Q, for trunk ports)

Exam with this question: CCNA v3.0 (200-125) Study Guide – Exam Dumps