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COSC 3315 Chap 7

True/False
Indicate whether the statement is true or false.
 

 1. 

Ethernet is the most popular network architecture.
 

 2. 

When full-duplex communication is used with Ethernet, CSMA/CD must also be used.
 

 3. 

1000BaseT, released as the 802.3ab standard in June 1999, supports Gigabit Ethernet over 100-meter segments of balanced Category 5 copper cabling and requires two pairs of wires.
 

 4. 

Ethernet supports four unique and compatible frame types.
 

 5. 

The Ethernet 802.3 frame type contains enhancements to the 802.2 frame, including a protocol type field, which indicates the network protocol used in the frame’s data section.
 

 6. 

By definition, broadcast technologies are one-way transmissions.
 

 7. 

The signaling rates associated with SONET are the same as those for ATM.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 8. 

In early networks based on ____, computers sent data whenever they had data to send.
a.
polling
c.
demand priority
b.
switching
d.
contention
 

 9. 

____ is the access method used by Ethernet.
a.
CSMA/CA
c.
Polling
b.
CSMA/CD
d.
Switching
 

 10. 

A form of ____ is used in wireless LANs with an access point.
a.
CSMA/CA
c.
polling
b.
switching
d.
demand priority
 

 11. 

When using the ____ channel access method, all computers have equal access to the media.
a.
CSMA/CA
c.
token passing
b.
CSMA/CD
d.
demand priority
 

 12. 

The ____ channel access method allows all computers equal access to the channel.
a.
CSMA/CA
c.
polling
b.
CSMA/CD
d.
demand priority
 

 13. 

The most widely accepted Ethernet standard today is 100BaseT, which is also called ____.
a.
raw Ethernet
c.
fast Ethernet
b.
legacy Ethernet
d.
EtherTalk
 

 14. 

____ is the standard that’s usually in mind when discussing 100 Mbps Ethernet.
a.
100BaseT
c.
100BaseT4
b.
100BaseTX
d.
100BaseFX
 

 15. 

____ Ethernet uses all four pairs of wires bundled in a UTP cable
a.
100BaseT
c.
100BaseT4
b.
100BaseTX
d.
100BaseFX
 

 16. 

____ Ethernet uses two strands of fiber-optic cable.
a.
100BaseT
c.
100BaseT4
b.
100BaseTX
d.
100BaseFX
 

 17. 

10BaseT Ethernet uses Category ____ or higher UTP cable.
a.
2
c.
4
b.
3
d.
5
 

 18. 

____ defines Gigabit Ethernet over fiber-optic cable.
a.
1000BaseX
c.
1000BaseC
b.
1000BaseF
d.
1000BaseO
 

 19. 

____ uses specially shielded, balanced, copper jumper cables.
a.
1000BaseT
c.
1000BaseSX
b.
1000BaseTX
d.
1000BaseCX
 

 20. 

The ____ frame type is sometimes called Ethernet raw.
a.
Ethernet 802.2
c.
Ethernet SNAP
b.
Ethernet 802.3
d.
Ethernet II
 

 21. 

The ____ frame type is generally used on the AppleTalk Phase 2 networks.
a.
Ethernet 802.2
c.
Ethernet SNAP
b.
Ethernet 802.3
d.
Ethernet II
 

 22. 

____ frames are used in TCP/IP networks.
a.
Ethernet 802.2
c.
Ethernet SNAP
b.
Ethernet 802.3
d.
Ethernet II
 

 23. 

One unique aspect of the token ring network architecture is its capability to isolate faults automatically by using a process called ____.
a.
beaconing
c.
switching
b.
polling
d.
contention
 

 24. 

In FDDI, devices called ____ can serve as a central connection point for buildings or sites in a campus setting.
a.
MSAUs
c.
intelligent hubs
b.
APs
d.
concentrators
 

 25. 

____ is a high-speed, baseband digital networking standard that specifies incrementally increasing data rates across fiber-optic links.
a.
SONET
c.
FDDI
b.
ATM
d.
DSL
 

Completion
Complete each statement.
 

 26. 

____________________ occurs on a switch only when two or more senders ask to reach the same receiver simultaneously or when the number of simultaneous transmission requests exceed the switch’s capability to handle multiple connections.
 

 

 27. 

1000BaseLX uses fiber-optic media; the “L” stands for “____________________,” the kind of laser used to send signals across the medium.
 

 

 28. 

The primary use of 10 Gigabit Ethernet is as the network ____________________, interconnecting servers and network segments running 100 Mbps and 1000 Mbps Ethernet technologies.
 

 

 29. 

___________________________________ (FDDI) uses the token-passing channel access method and dual counter-rotating rings for redundancy.
 

 

 30. 

The official standard governing cable modem operation is called __________________________________________________ (DOCSIS).
 

 

 31. 

______________________________ (ATM) is a high-speed network technology designed for both LAN and WAN use.
 

 

Matching
 
 
Match each term with the correct statement below.
a.
token ring
f.
collision domain
b.
collision
g.
MSAU
c.
AppleTalk
h.
switching
d.
channel access method
i.
full-duplex communication
e.
SFD
 

 32. 

results of two or more devices sending a signal along the same channel at the same time
 

 33. 

specifies when computers can access the cable or data channel
 

 34. 

a channel access method
 

 35. 

extent to which signals in an Ethernet network are propagated
 

 36. 

a computer can send and receive data simultaneously
 

 37. 

indicates the beginning of an Ethernet 802.3 frame
 

 38. 

developed by IBM in the mid-1980s
 

 39. 

a hub in a token ring network
 

 40. 

applies a dynamic scheme to determine a device’s address
 



 
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