What is the VLAN configuration database used after connecting three switches?

The correct answer is based on how VLAN databases are synchronized among switches in a network. When multiple switches are connected and configured for VLANs, they share information about their VLAN configurations to maintain consistency across the network.

The switch with the highest revision number becomes the authoritative source for the VLAN configuration database. This is because the revision number serves as a versioning system, ensuring that all switches are updated with the most recent configuration changes. When a new switch connects, it compares its VLAN database revision number with that of other switches. If it finds a switch with a higher revision number, it will adopt that switch's database to ensure uniformity across the network.

In this scenario, choosing the switch with the highest revision number is logical because it indicates that this particular switch has the latest and presumably the most accurate VLAN information for all switches in the network. This synchronization process helps prevent potential conflicts and inconsistencies in VLAN setups, ensuring that the network operates smoothly.

Options that reference a specific switch's database solely because it was configured first or based on a specific revision without context do not consider the essential principle of adopting the highest revision number. Likewise, stating that all switches use their own database would contradict the fundamental objective of VLAN synchronization in a multi-switch environment, which is