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Comptia network + > 2.1 Given a scenario, deploy the appropriate cabling solution. > Flashcards

2.1 Given a scenario, deploy the appropriate cabling solution. Flashcards

1
Q

• UTP (Unshielded Twisted Pair)

A
  • The most common twisted pair cabling

* No additional shielding

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2
Q

• STP (Shielded Twisted Pair)

A
  • Additional shielding protects against interference
  • Shield each pair and/or the overall cable
  • Requires the cable to be grounded
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3
Q

Category 3

A

3 10BASE-T 100 meters

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4
Q

Category 5

A

5 100BASE-TX, 1000BASE-T 100 meters

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5
Q

Category 5e

A

100BASE-TX

1000BASE-T 100 meters

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6
Q

Category 6

A

10GBASE-T 37 to 55 meters

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7
Q

Category 6A

A

(augmented) 10GBASE-T 100 meters

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8
Q

Category 7

A

10GBASE-T 100 meters

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9
Q

Network cabling standards

A
  • Electronic Industries Alliance (EIA)

* Develops standards for the industry

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10
Q

• Telecommunications Industry Association (TIA)

A
  • Standards, market analysis, government affairs, etc.

* ANSI/TIA/EIA-568 - Commercial Building

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11
Q

Plenum space

A
  • Building air circulation - Heating and air conditioning system
  • Concerns in the case of a fire - Smoke and toxic fumes
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12
Q

Plenum-rated cable

A
  • Traditional cable jacket

* Polyvinyl chloride (PVC)

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13
Q

• Fire-rated cable jacket

A

• 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

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14
Q

Coaxial cables

A
  • Two or more forms share a common axis
  • RG-6 used in television/digital cable
  • Not designed for long distances
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15
Q

Copper Connectors

A

RJ-11 Connector , RJ-45 Connector,DB-9 connector

DB-25 connector, F-connector BNC connector

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16
Q

Fiber communication

A
  • Transmission by light • The visible spectrum
  • No RF signal - • Very difficult to monitor or tap
  • Transmission over long distances
  • Immune to radio interference - There’s no RF
17
Q

UPC (Ultra-polished connectors)

A

• Ferrule end-face radius polished at a zero degree angle
• High return loss
MultimodeFiber
Shortrangecommunication,up to2km

18
Q

APC (Angle-polished connectors)

A
  • Ferrule end-face radius polished at an eight degree angle

* Lower return loss, generally higher insertion loss than UPC

19
Q

Optical Fiber Connectors

A

ST - Straight Tip SC - Subscriber Connector

LC - Lucent Connector MT-RJ - Mechanical Transfer Registered Jack

20
Q

66 block

A
  • A patch panel for analog voice
  • Left side is patched to the right
  • Wire and a punch-down tool
21
Q

110 block

A
  • Wire-to-wire patch panel
  • No intermediate interface required
  • Replaces the 66 block
  • Patch Category 5 and Category 6 cables
  • Additional wires punched into connecting block
22
Q

Copper patch panel

A
  • Punch-down block on one side, RJ45 connector on the other
  • Move a connection around - Different switch interfaces
  • The run to the desk doesn’t move
23
Q

Fiber distribution panel

A
  • Permanent fiber installation - Patch panel at both ends

* Fiber bend radius - Breaks when bent too tightly

24
Q

Transceiver

A
  • Transmitter and receiver

* Provides a modular interface

25
Q

GBIC

A
  • Gigabit Interface Converter
  • Common on Gigabit and fibre channel networks
  • Copper and fiber support
26
Q

SFP and SFP+

A
  • Small Form-factor Pluggable (SFP)
  • Commonly used to provide 1 Gbit/s fiber
  • Enhanced Small Form-factor Pluggable (SFP+)
  • Supports data rates up to 16 Gbit/s
27
Q

QSFP

A

• Quad Small Form-factor Pluggable -4-channel SFP = Four 1 Gbit/s = 4 Gbit/s

  • Combine four SFPs into a single transceiver
  • Bi-Directional (BiDi) QSFP and QSFP+
28
Q

Duplex communication

A
  • Two fibers

* Transmit and receive

29
Q

Bi-Directional (BiDi) transceivers

A
  • Traffic in both directions with a single fiber

* Use two different wavelengths - • Reduce the number of fiber runs by half

30
Q

100 Mbit/s Ethernet

A
  • 100BASE-TX
  • “Fast Ethernet”
  • Category 5 or better twisted pair copper - two pair
  • 100 meters maximum length
31
Q

1000 Mbit/s (1 Gbit/s) Ethernet

A
  • 1000BASE-T

* Category 5 or better twisted pair copper - four pair

32
Q

• 1000BASE-SX

A
  • Gigabit Ethernet using NIR (near infrared) light wavelength
  • Usually over multi-mode fiber
33
Q

• 1000BASE-LX

A
  • Gigabit Ethernet using long wavelength laser
  • Multi-mode fiber to 550 meters
  • Single-mode fiber to 5 kilometers
34
Q

10 Gbit/s Ethernet

A
  • 10GBASE-T

* Frequency use of 500 MHz

35
Q

Twisted pair copper cables

A
  • Cat 6 – 55 meters
  • Cat 6A (augmented) – 100 meters
  • Cat 7 - 100 meters

Comptia network + (26 decks)

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