Which three options are recommended practices when configuring VTP? (Choose three.)
A.
Set the switch to transparent mode
B.
Set the switch to server mode
C.
Enable VLAN pruning
D.
Disable VLAN pruning
E.
Specify a domain name
F.
Clear the domain name
Explanation:
VLAN Trunking Protocol (VTP) is a protocol that enables network managers to centrally manage the VLAN database. VTP transparent mode is now a
recommended practice because it decreases the potential for operational error.
By default, Cisco switches are configured as a VTP server with no VTP domain name specified.Therefore, it is also recommended when configuring switches along with setting the mode to Transparent, to set the VTP domain name. This is important if you are
connecting your switch to other domains, such as a service provider switch. Misconfiguration of the switch as a server or client with no VTP domain name will cause
it to accept the domain name of an adjacent VTP server and overwrite the local VLAN database.
As a recommended practice, when configuring switch-to-switch interconnections to carry multiple VLANs, set Dynamic Trunking Protocol (DTP) to Desirable and
Desirable with Encapsulation Negotiate to support DTP negotiation.
VTP version 3 supports centralized VLAN administration in a switched network. VTP runs only on trunks and provides the following four modes:
Server: Updates clients and servers. The VTP server switch propagates the VTP database to VTP client switches.
Client: Receives updates but cannot make changes.
Transparent: Does not participate in the VTP domain. Lets updates pass through.
Off: Ignores VTP updates.
With VTP, when you configure a new VLAN on a switch in VTP server mode, the VLAN is distributed through all switches in the VTP domain. This redistribution
reduces the need to configure the same VLAN everywhere.
Another recommended practice is to manually prune unused VLANs from trunked interfaces to avoid broadcast propagation. You should avoid automatic VLAN
pruning.
http://www.ciscopress.com/articles/article.asp?p=1315434&seqNum=2