Chapter 3: Ethernet Basics

Question 1

Ethernet hubs take an incoming packet and
_______________ it out to the other connected ports.
A. amplify
B. repeat
C. filter
D. distort

Answer 1

B. Hubs are nothing more than multiport repeaters.

Question 2

What is appended to the beginning of the Ethernet
frame?
A. MAC address
B. Length
C. Preamble
D. CRC

Answer 2

C. Appended to the front of the Ethernet frame is

the preamble.

Question 3

What type of bus does 10BaseT use?
A. Bus
B. Ring
C. Star bus
D. Bus ring

Answer 3

C. 10BaseT uses a star-bus topology.

Question 4

What is the maximum distance that can separate a
10BaseT node from its hub?
A. 50 meters
B. 100 meters
C. 185 meters
D. 200 meters

Answer 4

B. The maximum distance between a 10BaseT

node and its hub is 100 meters.

Question 5

When used for Ethernet, unshielded twisted pair
uses what type of connector?
A. RG-58
B. RJ-45
C. RJ-11
D. RS-232

Answer 5

B. UTP cable uses an RJ-45 connector when used
for Ethernet. RG-58 is the type of coaxial cable used
with 10Base2. RJ-11 is the standard four-wire connector
used for regular phone lines. RS-232 is a standard for
serial connectors.

Question 6

What is the maximum number of nodes that can be
connected to a 10BaseT hub?
A. 1024
B. 500
C. 100
D. 185

Answer 6

A. A 10BaseT hub can connect no more than 1024

nodes (computers).

Question 7

Which of the following is not true of crossover
cables?
A. They are a type of twisted-pair cabling.
B. They reverse the sending and receiving wire
pairs.
C. They are used to connect hubs.
D. Both ends of a crossover cable are wired
according to the TIA/EIA 568B standard.

Answer 7

D. One end of a crossover cable is wired according
to the TIA/EIA 568B standard; the other is wired
according to the TIA/EIA 568A standard. This is what
crosses the wire pairs and enables two hubs to
communicate without colliding.

Question 8

Which of the following connectors are used by
10BaseFL cable? (Select two.)
A. SC
B. RJ-45
C. RJ-11
D. ST

Answer 8

A, D. 10BaseFL uses two types of fiber-optic

connectors called SC and ST connectors.

Question 9

Which networking devices can use the Spanning
Tree Protocol (STP)?
A. Hubs
B. Media converters
C. UTP cables
D. Switches

Answer 9

D. The Spanning Tree Protocol is unique to

switches.

Question 10

What device directs packets based on MAC
addresses?
A. Router
B. Hub
C. Repeater
D. Switch

Answer 10

D. A switch uses MAC addresses to direct traffic

only to the appropriate recipient.