ccna 640-802 s2-4/5@15/791

QUESTION NO: 4
Refer to the TestKing network shown below:

You work as a network technician at TestKing.com. Please study the exhibit
carefully. Based on the information shown above, what is needed to allow host
TestKing1 to ping host TestKing2?
A. a crossover cable connecting the switches
B. a backbone switch connecting the switches with either fiber optic or straight-through
cables
C. a straight-through cable connecting the switches
D. a CSU/DSU connected to the switches with straight-through cables
E. a router connected to the switches with straight-through cables

Answer: E
Explanation:
Routers are Layers 3 devices used for inter-network communication. In this scenario there
are two different networks, so both switches need to connect to a router using
straight-through cables.
A 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.