CCNA: Cisco Certified Network Associate — Question 203

An engineer requires a switch interface to actively attempt to establish a trunk link with a neighbor switch. What command must be configured?

Answer options

• A. switchport mode trunk
• B. switchport mode dynamic desirable
• C. switchport nonegotiate
• D. switchport mode dynamic auto

Correct answer: B

Explanation

The correct answer, B, 'switchport mode dynamic desirable', allows the switch to actively negotiate a trunk link with neighboring devices. Option A sets the port to trunk mode but does not initiate negotiations, while C disables negotiation entirely, and D sets the port to respond to trunking requests without initiating them.