Section 4 - Ethernet Basics

Question 1

Ethernet is defined by which organization?

Answer 1

IEEE 802.3

Question 2

Organize a complete frame from front to back.

Answer 2

Preamble -> Destination MAC -> Source MAC -> Ether (data type) -> Data -> Pad -> FCS

Question 3

Frames can carry up to 1500 bytes, whereas Jumbo Frames can carry up to ___ bytes.

Answer 3

9000 bytes

Question 4

The data in a frame that is used for error detection is called the __.

Answer 4

FCS (a.k.a., Frame Check Sequence)

Question 5

CSMA/CD stands for:

A) Carrier Sense Managed Access / Collision Detection
B) Carrier Sense Managed Access / Cord Detection
C) Cranky Steve Must Age / Cord Discord
D) Carrier Sense Multiple Access / Collision Detection

Answer 5

D) Carrier Sense Multiple Access / Collision Detection

Question 6

Which two network-defining categories require terminating resistors at both ends of a network segment?

Answer 6

10Base5

10Base2

Question 7

Base requires a “T” connector.

A) 10Base5
B) 10Base2
C) 10BaseT
D) A & B
E) A & C

Answer 7

B) 10Base2

Question 8

True/False:

10BaseT runs at 10 Mbps over Cat 3 or higher UTP and up to 1024 nodes.

Answer 8

True

Question 9

An RJ-45 connector can also be referred to as an __ connector.

Answer 9

8P8C (8 Pin 8 Contacts)

Question 10

Which cable type is created when mixing the EIA/TIA 568A and EIA/TIA 568B wiring schemes?

Answer 10

Crossover cable

Question 11

Which cable type is created when using a single wiring scheme to terminate Unshielded Twisted Pair (UTP)?

Answer 11

Straight-through cable

Question 12

A Switch forwards frames based on…

Answer 12

MAC addresses

Question 13

Hubs use __ to avoid collisions.

A) CSMA/CD
B) MCSA/CD
C) CMSA/CD

Answer 13

A) CSMA/CD

Question 14

True/False:

Hubs create and use MAC address tables to map ports and host devices.

Answer 14

False

Question 15

True/False:

An octet also means byte and vice-versa.

Answer 15

True

Question 16

What is the minimum amount of data an ethernet frame can carry?

Answer 16

64 bytes

Question 17

A __ is used to fill empty byte-space in a frame.

Answer 17

Pad

Question 18

MTU stands for Maximum ____ Unit.

Answer 18

Maximum Transmission Unit

Question 19

Define the three values in 10BaseT.

Answer 19

10 = network speed in MB/s
Base = type of connection; either Base or Broad
T = defines the length of cable

Question 20

True/False:

The Multi-station Access Unit was developed by IBM and is referred to as a Token Ring.

Answer 20

True

Question 21

Describe the EIA/TIA 568A wiring scheme.

Answer 21

WGreen/Green, WOrange/Blue, WBlue/Orange, WBrown/Brown

Question 22

Describe the EIA/TIA 568B wiring scheme.

Answer 22

WOrange/Orange, WGreen/Blue, WBlue/Green, WBrown/Brown

Question 23

A collision domain is to a __, whereas a broadcast domain is to a __.

Answer 23

Hub

Switch