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CompTIA Network+ > Chapter 3 - Network Media and Topologies > Flashcards

Chapter 3 - Network Media and Topologies Flashcards

1
Q

What are the characteristics of Multi-Mode Fiber optic cable?

A 
page 91
MMF
- Provides high bandwidth at high speeds over medium distances (up to 3000ft, 100m)
- Available in glass or plastic version
- Immune to interference
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2
Q

What are the characteristics of Single-Mode Fiber optic cable?

A

page 91
SMF
- Laser or LEDs may be used
- Used for long runs, can transmit data 50x further tha Multi-Mode

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3
Q

How does UTP & STP cut down on magnetic interference?

A

page 92

By twisting pairs, it cuts down on the magnetic interference

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4
Q

What are the CAT Cables categories & their speeds?

A 
page 93
CAT3       10Mbps
CAT5       100Mbps
CAT5e     1000Mbps
CAT6       1000Mbps
CAT6e     1000Mbps
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5
Q

What is a Vampire Tap?

A 
page 94
A connect (device) that could be clamped onto a coaxial, thus piercing the coax & get the signal from the core.
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6
Q

With which device connections are crossover cables required T568A - T568B?

A 
page 92
CROSSOVER
- PC to PC
- Router to Router
- PC to Router

STRAIGHT

  • PC to Switch
  • Switch to Router
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7
Q

What is a T1 crossover cbale/

A

page 95

A cable that is used to connect one CSU/DSU to another, (channel service unit/data service unit)

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8
Q

If you have connections between building with fiber optic, what do you use?

A

page 97

  • Single Mode Fiber is used between buildings
  • Multi Mode Fiber is used in buildings
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9
Q

What is Broadband over Power Line?

A

page 98

A system that carries data on a conductor wire that is also used for electrical power transmission

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10
Q

What are the various types of Fiber optic connectors?

A

page 99

  • ST
  • SC
  • LC
  • MTRJ
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11
Q

What type of connectors are used with Copper Cables?

A

page 101

  • RJ45
  • RJ11
  • BNC
  • F-connector
  • DB9
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12
Q

What is a patch panel used for?

A

page 104

  • Typically a rack or wall-mounted structure that houses cable connections.
  • Purpose to offer the administrator a way to change the path of a signal quickly when needed.
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13
Q

What is a 110 block?

A

page 104

  • Newer type of distribution pint
  • Used for RJ11 or RJ45 connections
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14
Q

What is T1/E1?

A

page 109

  • T1 provides for 1.54 Mbps of dedicated bandwidth for customer, bandwidth can be used in total or divided up to as many as 24 channels called DSOs which are each 64Kbps
  • E1 is Europe’s version of T1 similar but offers 32 DSOs for a total 2.048 Mbps
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15
Q

What are T3/E3/DS3?

A

page 109
T3 provides for 672 DSOs equivalent to 28T1s, 44.736Mbps (sometimes referred to as a DS3)
- E3 provides for n512 DSOs approximately 17 E1s or 34.368 Mbps

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16
Q

What is OC-x?

A 
page 109
OC stands for "Optical Carrier",  x indicates relative speed
- OC => 50Mbps
- OC3 => 150Mbps
- OC3072 => 160GGbps
17
Q

What is SONET?

A

page 109
Synchronous Optical Networking
- will push data at 150Gbps over fiber limks
- typically used by large communication providers
- provides an STS-1 link of 50Mbps bandwidth
- where as STS-3 would provide 150Mbps

18
Q

What is DWDM?

A

page 110
Dense Wavelength Division Multiplexing
Is an optical technology used to increase bandwidth even further over existing fiber-optic backbones

19
Q

What is HSPA+?

A

page 114
High Speed Packet Access+
- wireless broadband standard that is used by some vendors for access to the Internet on call phones & PDAs
- provides data link rates of approximately 84Mbps down & 22Mbps

20
Q

What is PON?

A

page 115
Passive Optical Network
Is a point-to-multi-point fiber-to-premise network that allows a single fiber optic cable to serve multiple premise

21
Q

What are LAN technologies types regarding Copper?

A 
page 127
10BaseT        Twisted Pair    10Mbps
100BaseT      Twisted Pair    100Mbps
100BaseTX    Twisted Pair    100Mbps
1000BaseT    Twisted Pair     1Gbps
10GBaseT      Twisted Pair     10Gbps
22
Q

What are some common physical connectivity problems?

A

page 124
Crosstalk, Bad connectors, bad wiring, open short, split cables, DB loss, TxRx reversed, Cable placement, EMI/Interface, Distance

23
Q

What are Packet Switch?

A

page 16
Each data packet might take a different route to its final destination during the same transmission

the original packet switch network call x.25

CompTIA Network+ (6 decks)

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