Question Set 1.

QUESTION NO: 1
Which of the following devices can an administrator use to segment their LAN?
(Choose all that apply)
A. Hubs
B. Repeaters
C. Switches
D. Bridges
E. Routers
F. Media Converters
G. All of the above
Answer: C, D, E

Explanation:
Routers, switches, and bridges don't transmit broadcasts. They segment a large
cumbersome network, into multiple efficient networks.
Incorrect Answers:
A. Hubs is incorrect because a hub doesn't segment a network, it only allows more hosts
on one. Hubs operate at layer one, and is used primarily to physically add more stations to
the LAN.
B. This also incorrect because the job of a repeater is to repeat a signal so it can exceed
distance limitations. It also operates at layer one and provides no means for logical LAN
segmentation.
F. This is incorrect because media converters work by converting data from a different
media type to work with the media of a LAN. It also operates at layer one and provides no
means for logical LAN segmentation.


QUESTION NO: 2
Routers perform which of the following functions? (Select three)
A. Packet switching
B. Collision prevention on a LAN segment.
C. Packet filtering
D. Broadcast domain enlargement
E. Broadcast forwarding
F. Internetwork communication

Answer: A, C, F

Explanation:
A. Routers work in Layer 3 of the OSI Model. A major function of the router is to route
packets between networks.
C. Through the use of access lists, routers can permit and deny traffic using layer 3 and
layer 4 packet information.
F. The primary purpose of a router is to route traffic between different networks, allowing
for internetworking.
Incorrect Answers:
B. While routers can be used to segment LANs, which will reduce the amount of
devices on a LAN segment, the possibility of a collision exists, whether a router is used
or not.
D. The broadcast domain of a LAN is often segmented through the use of a router. This
results in reducing the size of the broadcast domain.
E. Routers do not forward broadcast traffic.
A groan grasps the peanut near the offending anthology.