CCNA: Cisco Certified Network Associate — Question 1217

An engineer needs to add an old switch back into a network. To prevent the switch from corrupting the VLAN database, with action must be taken?

Answer options

• A. Add the switch in the VTP domain with a lower revision number.
• B. Add the switch in the VTP domain with a higher revision number.
• C. Add the switch with DTP set to dynamic desirable.
• D. Add the switch with DTP set to desirable.

Correct answer: A

Explanation

The correct answer is A because adding the switch with a lower revision number prevents it from overwriting the existing VLAN database. Options B is incorrect as a higher revision number would cause the switch to propagate its database and could lead to corruption, while options C and D relate to DTP settings, which do not address the VLAN database issue.