Deck 7: Network Architectures

Question 1

10BaseT Ethernet uses Category ____ or higher UTP cable.

A)2
B)3
C)4
D)5

Answer 1

B

Question 2

____ Ethernet uses all four pairs of wires bundled in a UTP cable

A)100BaseT
B)100BaseTX
C)100BaseT4
D)100BaseFX

Answer 2

C

Question 3

When using the ____ channel access method, all computers have equal access to the media.

A)CSMA/CA
B)CSMA/CD
C)token passing
D)demand priority

Answer 3

C

Question 4

____ uses specially shielded, balanced, copper jumper cables.

A)1000BaseT
B)1000BaseTX
C)1000BaseSX
D)1000BaseCX

Question 5

Ethernet supports four unique and compatible frame types.

Question 6

By definition, broadcast technologies are one-way transmissions.

Question 7

____ defines Gigabit Ethernet over fiber-optic cable.

A)1000BaseX
B)1000BaseF
C)1000BaseC
D)1000BaseO

Question 8

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.

Question 9

A form of ____ is used in wireless LANs with an access point.

A)CSMA/CA
B)switching
C)polling
D)demand priority

Question 10

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

Question 11

____ Ethernet uses two strands of fiber-optic cable.

A)100BaseT
B)100BaseTX
C)100BaseT4
D)100BaseFX

Question 12

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.

Question 13

____ is a channel access method used solely by the 100VG-AnyLAN 100 Mbps Ethernet standard (IEEE 802.12).

A)Demand priority
B)Polling
C)CSMA/CA
D)Switching

Question 14

In early networks based on ____, computers sent data whenever they had data to send.

A)polling
B)switching
C)demand priority
D)contention

Question 15

Ethernet is the most popular network architecture.

Question 16

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

Question 17

The most widely accepted Ethernet standard today is 100BaseT, which is also called ____.

A)raw Ethernet
B)legacy Ethernet
C)fast Ethernet
D)EtherTalk

Question 18

____ is the standard that's usually in mind when discussing 100 Mbps Ethernet.

A)100BaseT
B)100BaseTX
C)100BaseT4
D)100BaseFX

Question 19

____ is the access method used by Ethernet.

A)CSMA/CA
B)CSMA/CD
C)Polling
D)Switching

Question 20

The ____ channel access method allows all computers equal access to the channel.

A)CSMA/CA
B)CSMA/CD
C)polling
D)demand priority

Question 21

One unique aspect of the token ring network architecture is its capability to isolate faults automatically by using a process called ____.

A)beaconing
B)polling
C)switching
D)contention

Question 22

How does Ethernet handle errors?

Question 23

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

Question 24

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

Question 25

Describe the Ethernet 802.2 frame type.

Question 26

In FDDI, devices called ____ can serve as a central connection point for buildings or sites in a campus setting.

A)MSAUs
B)APs
C)intelligent hubs
D)concentrators

Question 27

What is CSMA/CD and how does it work?

Question 28

____ is the AppleTalk protocol running over a 10 Mbps IEEE 802.3 network.

A)LocalTalk
B)EtherTalk
C)TokenTalk
D)BusTalk

Question 29

____ frames are used in TCP/IP networks.

A)Ethernet 802.2
B)Ethernet 802.3
C)Ethernet SNAP
D)Ethernet II

Question 30

What are the advantages and disadvantages of switching?

Question 31

The ____ frame type is generally used on the AppleTalk Phase 2 networks.

A)Ethernet 802.2
B)Ethernet 802.3
C)Ethernet SNAP
D)Ethernet II

Question 32

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

Question 33

What are the advantages and disadvantages of the polling channel access method?

Question 34

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

Question 35

The ____ frame type is sometimes called Ethernet raw.

A)Ethernet 802.2
B)Ethernet 802.3
C)Ethernet SNAP
D)Ethernet II

Question 36

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

Question 37

____________________ 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.

Question 38

What is CSMA/CA and how does it work?

Question 39

____ is the AppleTalk protocol running over a 4 or 16 Mbps IEEE 802.5 network.

A)LocalTalk
B)EtherTalk
C)TokenTalk
D)BusTalk

Question 40

____ is a high-speed, baseband digital networking standard that specifies incrementally increasing data rates across fiber-optic links.

A)SONET
B)ATM
C)FDDI
D)DSL

Question 42

Why does ATM use small, fixed-sized cells instead of variable-size frames?

Question 43

What is HIPPI?

Question 44

What is DSL?

Question 45

What is LocalTalk? Describe some of its characteristics.