Implementing Cisco Network Security (IINS, legacy) — Question 45

Which command causes a Layer 2 switch interface to operate as a Layer 3 interface?

Answer options

• A. no switchport nonnegotiate
• B. switchport
• C. no switchport mode dynamic auto

Correct answer:

Explanation

The correct answer is A, 'no switchport nonnegotiate', which configures the interface to act as a Layer 3 interface by disabling the switchport feature. Option B, 'switchport', keeps the interface in Layer 2 mode, while option C, 'no switchport mode dynamic auto', does not switch the interface to Layer 3 functionality.