Refer to the exhibit. A network administrator needs to add a new VLAN, named VLAN3, to the
network shown. Unfortunately, there is not another FastEthernet interface on R1 to connect to the
new VLAN3. Which approach is the most cost effective solution for this problem?
A.
Purchase a new FastEthernet module and install it on R1.
B.
Replace R1 with a new router that has at least three FastEthernet interfaces.
C.
Configure a second switch to support VLAN3 with a VLAN trunk between SW1 and the new
switch.
D.
Configure a single VLAN trunk between R1 and SW1 and configure a subinterface on the R1
interface for each VLAN.
E.
Connect another router to a serial interface of R1. Use a FastEthernet interface on the new
router for VLAN3.
Explanation: