Ethernet

Question 1

Ethernet is defined by what network standard?

Answer 1

IEEE 802.3

Question 2

FCS stands for:

Answer 2

Frame Check Sequence

Question 3

Ethernet frame never changes

Question 4

Norma Clatures are:

Answer 4

10BaseT
10 - stands for the speed
Base is only one channel / Broad multiple channels like TV
5 - Length ( 500 meters )
T unshielded Twisted pair with a switch in the middle

Question 5

Ethernet Frames contain all of the following:
PDSDTDF

Answer 5

Preamble/Dest mac/ Source mac/Data Type/Data/ FCS

Question 6

Preamble is

Answer 6

1’s and 0’s

Question 7

What part of the frame tells you what type of data is being sent in the frame:

Answer 7

Data Type

Question 8

What is the minimum amount of “Data” an ethernet frame can carry?

Answer 8

64 bytes

Question 9

If “Data” is below 64 bytes then what is used so the frame will be sent?

Answer 9

a Pad

Question 10

What is the maximum amount of “Data” an ethernet frame can carry?

Answer 10

1522 bytes

Question 11

What can push an ethernet frame up to 9000 bytes of “Data”:

Answer 11

Jumbo Frame ( High Speed network)

Question 12

MTU stands for what?

Answer 12

Maximum Transmission Unit - 1522 bytes

Question 13

What is used for error detection in an ethernet frame?

Answer 13

FCS ( Frames Check Sequence )

Question 14

568A on one end and 568 B on the other end creates what kind of cable?

Answer 14

Crossover Cable

Question 15

Most common network cable and uses 568B on both ends is called what kind of cable?

Answer 15

Straight Through Cable

Question 16

Technical name for a RJ-45 connector is:

Answer 16

8P8C

Question 17

CSMA/CD stands for:

Answer 17

Carrier Sense Multiple Access / Collision Detection

Question 18

Eats data at the end of a cable like on a 10Base5 and 10Base2 is:

Answer 18

Terminate Resistor

Question 19

Who came up with Token Ring?

Answer 19

IBM

Question 20

What Noman Clayture has:
10 mb a second
100 meters between Nodes / Hubs
Maximum of 1024 Nodes per Switch
Only Cat 3 or better UTP can be used

Answer 20

10BaseT is basically a hub

Question 21

What type of network hardware:
recreate frames for every computer
Uses CSMA/CD
Collision Domain
Everyone can hear collisions

Answer 21

Hubs or Multiple Port Repeater

Question 22

Switch uses Mac addresses or point to point connections and uses what type of domain?

Answer 22

Broadcast Domain

Question 23

Two way communication or one at a time is what mode:

Answer 23

Half-Duplex

Question 24

Computers talk all the time / like a phone is what mode:

Answer 24

Full-Duplex

Question 25

100BASET4 uses:

Answer 25

Cat3 Cable
100 MBPS
1024 Hubs
100 meters from base to each hub
1st to use 4 pairs
Now Obsolete

Question 26

100BASETX uses:

Answer 26

Cat5e Cable
100 MBPS
1024 nodes
100 meters from base to a node
Uses only 2 pairs

Question 27

100BASET uses:

Answer 27

is todays standard, basically 100BaseT

Question 28

100BASEFX uses:

Answer 28

Multimode
100 MBPS
1024 nodes
2 KM using multimode fiber and switches

Question 29

What type of cable can you plug into any port of a switch to switch:

Answer 29

Crossover Cable

Question 30

What type of cable would you use from a standard switch port to UPLINK ports?

Answer 30

Straight Through Cable

Question 31

What is the port actually called once you push or use the UPLINK button/port on a switch?

Answer 31

Medium Dependent Interface Crossover ( MDI-X )

Question 32

Most modern switches use autosensing ports that can use straight through cables and that is called:

Answer 32

Auto Medium Dependent Interface Crossover ( Auto-MDI-X )

Question 33

By plugging cables from switch to switch back to switches causing the network to crash is called a :

Answer 33

Switching Loop

Question 34

This sends frames or Bridge Protocol Data Units ( BPDU’s) to prevent Switching loops from happening by assigning switches as number 1 or number 2 or number 3.

Answer 34

Spanning Tree Protocol

Question 35

Switches use ______ to obtain MAC addresses

Answer 35

ARP (Address Resolution Protocol)

Question 36

What layer does a switch operate at:

Answer 36

Layer 2 unless its a Layer 3 switch

Question 37

CSMA/CA stands for

Answer 37

collision avoidance