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.
|
|
|
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.
|
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
|