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Network + > Ethernet > Flashcards

Ethernet Flashcards

1
Q

Ethernet is defined by what network standard?

A

IEEE 802.3

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2
Q

FCS stands for:

A

Frame Check Sequence

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3
Q

Ethernet frame never changes

A
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4
Q

Norma Clatures are:

A

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

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5
Q

Ethernet Frames contain all of the following:
PDSDTDF

A

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

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6
Q

Preamble is

A

1’s and 0’s

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7
Q

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

A

Data Type

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8
Q

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

A

64 bytes

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9
Q

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

A

a Pad

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10
Q

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

A

1522 bytes

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11
Q

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

A

Jumbo Frame ( High Speed network)

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12
Q

MTU stands for what?

A

Maximum Transmission Unit - 1522 bytes

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13
Q

What is used for error detection in an ethernet frame?

A

FCS ( Frames Check Sequence )

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14
Q

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

A

Crossover Cable

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15
Q

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

A

Straight Through Cable

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16
Q

Technical name for a RJ-45 connector is:

A

8P8C

17
Q

CSMA/CD stands for:

A

Carrier Sense Multiple Access / Collision Detection

18
Q

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

A

Terminate Resistor

19
Q

Who came up with Token Ring?

A

IBM

20
Q

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

A

10BaseT is basically a hub

21
Q

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

A

Hubs or Multiple Port Repeater

22
Q

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

A

Broadcast Domain

23
Q

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

A

Half-Duplex

24
Q

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

A

Full-Duplex

25
Q

100BASET4 uses:

A

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

26
Q

100BASETX uses:

A

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

27
Q

100BASET uses:

A

is todays standard, basically 100BaseT

28
Q

100BASEFX uses:

A

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

29
Q

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

A

Crossover Cable

30
Q

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

A

Straight Through Cable

31
Q

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

A

Medium Dependent Interface Crossover ( MDI-X )

32
Q

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

A

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

33
Q

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

A

Switching Loop

34
Q

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.

A

Spanning Tree Protocol

35
Q

Switches use ______ to obtain MAC addresses

A

ARP (Address Resolution Protocol)

36
Q

What layer does a switch operate at:

A

Layer 2 unless its a Layer 3 switch

37
Q

CSMA/CA stands for

A

collision avoidance

Network + (20 decks)

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