Cisco CCNA mock exam questions sample test – Question 309

.Which VLAN can NOT be filtered through the VLAN Trunking Protocol (VTP) Pruning feature of Cisco switches?

A. VLAN 1
B. VLAN 10
C. VLAN 100
D. VLAN 1000

Correct Answer: A

Explanation:
VLAN 1 traffic cannot be pruned. Cisco recommends that VLAN 1 be used for management of VLANs.
VTP pruning is a Cisco VTP feature that allows switches to dynamically delete or add VLANs to a trunk for traffic transmission. It creates an efficient switching network by optimal use
of available trunk bandwidth.
The options 10, 100, and 1000 are incorrect because these VLAN numbers can be pruned. By default, VLANs 2 to 1000 are eligible for pruning.
Objective:
LAN Switching Fundamentals
Sub-Objective:
Configure, verify, and troubleshoot VLANs (normal/extended range) spanning multiple switches
References:
Cisco Press Home > Articles > Cisco Certification > CCNA > CCNA Self-Study (ICND Exam): Extending Switched Networks with Virtual LANs