Copper Cabling Flashcards Preview

CompTIA N10-007 Network+ > Copper Cabling > Flashcards

Flashcards in Copper Cabling Deck (7)
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1
Q

The importance of cable

A
  • Fundamental to network communication
    • Incredibly important foundation

• Usually only get one good opportunity at building
your cabling infrastructure
• Make it good!

• The vast majority of wireless communication uses
cables
• Unless you’re an amateur radio operator

2
Q

Twisted pair copper cabling

A
  • Balanced pair operation
    • Two wires with equal and opposite signals
    • Transmit+, Transmit- / Receive+, Receive-

• The twist keeps a single wire constantly moving away
from the interference
• The opposite signals are compared on the other end

• Pairs in the same cable have different twist rates

3
Q

Unshielded and shielded cable

A
  • UTP (Unshielded Twisted Pair)
    • No additional shielding
    • The most common twisted pair cabling
  • STP (Shielded Twisted Pair)
    • Additional shielding protects against interference
    • Shield each pair and/or the overall cable
    • Requires the cable to be grounded
  • Abbreviations
    • U = Unshielded, S = Braided shielding, F = Foil shielding

• (Overall cable) / (individual pairs)TP
• Braided shielding around the entire cable and foil
around the pairs is S/FTP
• Foil around the cable and no shielding around the
pairs is F/UTP

4
Q

Network cabling standards

A
• Electronic Industries Alliance (EIA)
  • Alliance of trade associations
  • Develops standards for the industry
  • Standards start with RS-# (Recommended Standard) 
     or EIA-#

• Telecommunications Industry Association (TIA)
• Standards, market analysis, government affairs, etc.
• ANSI/TIA/EIA-568 - Commercial Building
Telecommunications Cabling Standard

  • International ISO/IEC 11801 cabling standards
    • Defines classes of networking standards
5
Q

Plenum space

A
  • Building air circulation - Heating and air conditioning system
  • Concerns in the case of a fire - Smoke and toxic fumes
  • Worst-case planning - Important concerns for any structure
6
Q

Plenum-rated cable

A
  • Traditional cable jacket
    • Polyvinyl chloride (PVC)

• Fire-rated cable jacket
• Fluorinated ethylene polymer (FEP) or
low-smoke polyvinyl chloride (PVC)

  • Plenum-rated cable may not be as flexible
    • May not have the same bend radius
7
Q

Coaxial cables

A

• Two or more forms share a common axis

  • RG-6 used in television/digital cable
    • And high-speed Internet over cable
  • RG-59 used as patch cables
    • Not designed for long distances

Decks in CompTIA N10-007 Network+ Class (86):