ICND2: Interconnecting Cisco Networking Devices Part 2 (legacy) — Question 25

Which two protocols can detect native vlan mismatch errors?

Answer options

• A. STP
• B. Cisco Discovery Protocol
• C. VTP
• D. DTP
• E. PAgP

Correct answer: B, C

Explanation

The correct answers, Cisco Discovery Protocol (CDP) and VTP (VLAN Trunking Protocol), can both identify and report native VLAN mismatches between devices. The other options, such as STP, DTP, and PAgP, do not specifically detect VLAN mismatches but rather focus on other functions like loop prevention and trunk negotiation.