CCNA: Cisco Certified Network Associate — Question 141

Which statement about VLAN configuration is true?

Answer options

• A. The switch must be in VTP server or transparent mode before you can configure a VLAN
• B. The switch must be in config-vlan mode before you configure an extended VLAN
• C. Dynamic inter-VLAN routing is supported on VLAN2 through VLAN 4064
• D. A switch in VTP transparent mode save the VLAN databases to the running configuration only

Correct answer: A

Explanation

The correct answer is A because a switch must indeed be in VTP server or transparent mode for VLAN configuration to take place. Option B is incorrect as extended VLANs can be configured without being in config-vlan mode. Option C is misleading since dynamic inter-VLAN routing is not universally supported across all VLANs. Option D is wrong because a switch in VTP transparent mode does not save VLAN databases to the running configuration only; it can also save them to the startup configuration.