Home » Cisco » 300-115 » Which statement about the VTPv2 is true?
Which statement about the VTPv2 is true?
A. It supports the use of multiple instances.
B. It propagates VLANs 1 ?1005 only.
C. It can be enabled on a per-port basis.
D. It performs consistency checks only when a new VLAN is manually added.
E. It can be enabled on a per-interface basis.
Correct Answer: B
Explanation/Reference:
VTPv3 offers support for extended range VLAN (VLANs 1006 to 4094) database propagation. VTP versions 1 and 2 propagate only VLANs 1 to 1005. If extended VLANs are configured, you cannot convert from VTP version 3 to version 1 or 2.
Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/12-2_52_se/configuration/guide/3560scg/ swvtp.html#wp1316856
In addition to propagating VTP information, version 3 can propagate Multiple Spanning Tree (MST) protocol database information. A separate instance of the VTP protocol runs for each application that uses VTP -> Only VTPv3 supports multiple VTP instances -> Answer A is not correct.
VTP version 1 and version 2 support only normal-range VLANs (VLAN IDs 1 to 1005). VTP version 3 supports the entire VLAN range (VLANs 1 to 4094). Extended range VLANs (VLANs 1006 to 4094) are supported only in VTP version 3. You cannot convert from VTP version 3 to VTP version 2 if extended VLANs are configured in the domain. Only VTPv3 allows to turn on/off per-port basis -> Answers C, E are not correct.
Consistency Checks: In VTP version 2, VLAN consistency checks (such as VLAN names and values) are performed only when you enter new information through the CLI or SNMP.
Consistency checks are not performed when new information is obtained from a VTP message or when information is read from NVRAM. Therefore Answer D is not correct.
Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/122_52_se/configuration/guide/3560scg/swvtp.html
Answer is D:
https://ethernuno.wordpress.com/2015/11/23/ccnp-switch-300-115-part-1-4a-vlan-trunking-protocol/
I take that back. It doesn’t ONLY perform checks when you add VLANs.
B is in fact correct in this case…