Deck 4: Ethernet Technology

Question 1

Every Ethernet device manufactured (NIC,router)contains a unique ____-bit MAC address assigned by the manufacturer.

A)24
B)32
C)48
D)64

Answer 1

C

Question 2

The Ethernet ____________________ is the time required to transmit 512 bits.

Answer 2

slot time

Question 3

Packet ____________________ keep track of many different Ethernet errors.

Answer 3

sniffers

Question 4

When all the bits of a frame have been received,it is possible that the last bit received is not the last bit of the final byte in the frame.

Question 5

The LSB (Least Significant Bit)for the SFD is set high (1).

Question 6

For Ethernet,the MTU may range from ____.

A)68 to 1300
B)68 to 1500
C)1300 to 1500
D)68 to 9000

Question 7

The destination address is the destination ____________________ address of the station that is to receive the frame.

Question 8

The Preamble contains ____ bytes with the identical pattern 10101010.

A)5
B)6
C)7
D)8

Question 9

The SFD (Start Frame Delimiter)is the 1-byte pattern ____.

A)10101011
B)10101010
C)10101000
D)10000011

Question 10

The ____________________ coding method (originally developed for Fibre Channel)replaces 8-bit data values with 10-bit code words.

Question 11

The PLS (physical signaling)is where Manchester encoding is applied to the bit stream.

Question 12

When the frame size is smaller,more of the available bandwidth is utilized.

Question 13

The ____________________ area is where all data from the upper networking layers are carried.

Question 14

____ are designed to prohibit retransmission of any frames for a short period of time when jabbering is detected,to prevent the network from being saturated with meaningless signals.

A)Repeaters
B)Stretchers
C)Flippers
D)Bouncers

Question 15

Fast Ethernet is implemented in several different ways,all collectively referred to as ____.

A)100baseT technology
B)10baseT technology
C)10base2 technology
D)100base2 technology

Question 16

Diffused IR uses line-of-sight IR lasers and provides a faster data rate than diffused IR.

Question 17

Originally,the ____ specification was used to standardize Ethernet communication over fiber.

A)FIROL
B)FIOS
C)FLIOR
D)FOIRL

Question 18

An example of a MAC address is ____.

A)135.48.79.4
B)00-C0-F0-27-64-E2
C)11-22-33-44
D)AA-BB-AA-BB-CC-E2-AF

Question 19

The AUI (attachment unit interface)may be a transceiver cable up to ____ meters in length.

A)25
B)50
C)75
D)100

Question 20

The ISM band (industrial,scientific,medical)is used for transmission at the ____ frequency for scientific data.

A)902 to 928 MHz
B)1.20 GHz to 2.0715 GHz
C)2.40 GHz to 2.4835 GHz
D)5.725 GHz to 5.850 GHz

Question 21

Describe CSMA/CA.

Question 22

Discuss excess utilization.

Question 23

MATCHING
Match each item with the correct statement below.
a.Jabber
d.MTU
b.Jam sequence
e.Collision domain
c.Runt
A 32-bit pattern generated by stations detecting a collision and designed to propagate the collision throughout the network

Question 24

List three properties that 10base5,10base2 and 10baseT have in common.

Question 25

MATCHING
Match each item with the correct statement below.
a.Jabber
d.MTU
b.Jam sequence
e.Collision domain
c.Runt
The maximum frame size allowed on the network.

Question 26

Describe the destination address of an Ethernet frame.

Question 27

MATCHING
Match each item with the correct statement below.
a.Jabber
d.MTU
b.Jam sequence
e.Collision domain
c.Runt
A portion of a LAN (or the entire LAN)where two or more stations transmitting at the same time will interfere with each other

Question 28

MATCHING
Match each item with the correct statement below.
a.Jabber
d.MTU
b.Jam sequence
e.Collision domain
c.Runt
Any transmitted frame whose length is less than the minimum frame size,even a short frame with a valid FCS

Question 29

MATCHING
Match each item with the correct statement below.
a.Jabber
d.MTU
b.Jam sequence
e.Collision domain
c.Runt
An out-of-control Ethernet transmitter generating a frame that is longer than 1526 bytes

Question 30

What is the interframe gap?