Which three of these factors should the network operator consider to minimize the impact of adding a new switch?

Refer to the exhibit.

The Layer 2 network uses VTP to manage its VLAN database. A network designer created all
VLANs on the VTP server (switch 1) and it has been advertised through VTP to all other VTP
clients (switches 2 through 4). Due to network growth, a network operator decided to add a new
switch between switch 1 and switch 3. The network operator has been instructed to use a
refurbished switch and use a VTP client. Which three of these has been instructed to use a
refurbished switch and use a VTP client. Which three of these factors should the network operator
consider to minimize the impact of adding a new switch? (Choose three.)

A.
Pay special attention to the VTP revision number, because the higher value takes the priority.

B.
Configure all VLANs manually on the new switch in order to avoid connectivity issues.

C.
A trunk should be established between the new switch and switches 1 and 3 as VTP only runs
over trunk links.

D.
Set at least the VTP domain name and password to get the new switch synchronized.

E.
An ISL trunk should be established between the new switch and switches 1 and 3, because
VTP only runs over ISL.

F.
Pay special attention to the VTP revision number, because the lower value takes the priority.

Explanation:
VTP should be used whenever we have more than 1 switch with multiple VLANs. It helps us save

much time so configuring all VLANs manually is just a waste of time -> B is not correct.
VLAN Trunking Protocol (VTP) can operate over 802.1q or ISL on FastEthernet link.+ On ISL:
Switch(config-if)#switchport trunk encapsulation isl + On 802.1q: Switch(config-if)#switchport trunk
encapsulation dot1q
-> E is not correct
Note: The 2940/2950 switches only support 802.1q encapsulation with the switchport mode trunk
command. The switch will automatically use 802.1q encapsulation.
Each time a VTP updates are sent out, the revision number is increased by 1. Any time a switch
sees a higher revision number, it knows the information that it’s receiving is more current, and it
will overwrite the current database with that new information.