Question 1

The fiber link specification 10baseFL:

is implemented exclusively in hub-to-hub connections.

uses Manchester encoding techniques.

is also called the FOIRL (fiber optic repeater link specification).

has a maximum segment length of 1000 meters.

Question 2

FDDI-II (hybrid ring control) supports voice, video, and other multimedia applications through the addition of __________ to the original packet- switching technique.

circuit-switching capability

frame relay transmission

convergence enabling software

12 byte frame check sequencing

Question 3

A Frame Check Sequence (FCS) is performed:

every 9.6 microseconds.

before an Ethernet frame is transmitted.

to correct packet loss on Voice over IP applications.

to determine the validity of a received Ethernet frame.

Question 4

All "Fast Ethernet" implementations:

rely on CSMA/CA (collision avoidance).

use Manchester encoding techniques.

use hubs and repeaters rather than switches and routers.

are referred to as 100baseT technologies.

Question 5

Nodes in an ARCnet network are organized in a __________.

physical ring

physical ring with token passing

logical ring

wireless RF topology

Question 6

The topology of a Bluetooth network is called __________.

IEEE 802.3z

IEEE 802.5

NanoNet

Piconet

Question 7

A __________ is a portion of a LAN (or the entire LAN) where two or more stations transmitting at the same time will interfere with each other.

collision domain

CSMA/CD

repeater segment

port on "Switch A" mapped to a port on "Router B"

Question 8

Token-bus (IEEE 802.4) is available in speeds of __________.

10, 100, and 1000 Mbps

512Kbps, 1 Mbps, 2Mbps, and 5Mbps

1, 5, 10, and 100Mbps

1, 5, 10, and 20Mbps

Question 9

Ethernet exhibits poor performance when its utilization:

is 60% or more.

exceeds 24 nodes per LAN segment.

includes all high payload frames.

includes multiple cyclic redundancy checks (CRCs).

Question 10

Broad-band LAN technology divides the available bandwidth of the cable system into multiple channels using a technique called __________.

Frequency Division Multiplexing (FDM)

Quadrature Amplitude Modulation (QAM)

Time Division Multiplexing (TDM)

Phase Shift Keying (PSK)

Question 11

Discuss the advantages and disadvantages of Ethernet technology with other available networking architectures.

Question 12 What would be the best network topology to implement for a MAN linking multiple locations in a city? Why?