Which of the following statements about expansion bus is true?

A.
It connects expansion cards to BIOS.

B.
It connects expansion cards to system bus.

C.
It is a network interconnectivity device that translates different communication protocols and is
used to connect dissimilar networks.

D.
It is a cable made of light-conducting glass or plastic fibers.

Explanation:

Expansion bus is a collection of wires and protocols used for the expansion of a computer. It
connects expansion cards such as network interface card, video card, etc., to system bus. Expansion
cards connect to the expansion bus through the expansion slot.
Answer option D is incorrect. Fiber optic cable is made of light-conducting glass or plastic fibers.
Answer option C is incorrect. Expansion bus is not a network connectivity device. It does not
translate different communication protocols and is not used to connect dissimilar networks.
FactWhat is a gateway? Hide
Gateway is a network interconnectivity device that translates different communication protocols
and is used to connect dissimilar network technologies. It provides greater functionality than a
router or bridge because a gateway functions both as a translator and a router. Gateways are slower
than bridges and routers. Gateway is an application layer device.
Reference: “http://www.webopedia.com/TERM/E/expansion_bus.html”