Refer to the exhibit. What is required to allow communication between host A and host B?

A.
a crossover cable only

B.
a router connected to the switches with crossover cables

C.
a straight-through cable only

D.
a CSU/DSU connected to the switches with crossover cables

E.
a router connected to the switches with straight-through cables

Explanation:
There are two different VLANs in the figure so we will require a router to make inter-VLAN
communication. In addition, the switch should connect with the router using the straight-through
cable to router for the trunk. Straight-through cable is used to connect two different devices like,
switch to router, host to switch. Since we need to insert a router for communication between the
two switches, straight through cables will be used between the switches and the router.