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Systems Infrastructure > Cabling > Flashcards

Cabling Flashcards

1
Q

What are the two types of SCS wiring? (4)

A

Vertical or Horizontal

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2
Q

An ________ product has an improved level of performance, such as Cat5 and Cat6. (5)

A

Evolved

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3
Q

What type of wiring standard is normally used to connect wiring closets between floors? (8)

A

Vertical

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4
Q

What type of wiring standard is normally used above the ceiling to connect to wall jacks? (8)

A

Horizontal

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5
Q

What would you use a Main cross-connect for? (32)

A

The building backbone connects to an outside service

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6
Q

What would you use a Intermediate cross-connect for? (32)

A

The building backbone connects to the telecom room

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7
Q

What would you use a Horizontal cross-connect for? (32)

A

Where the horizontal wiring connects to the telecom room (the rack).

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8
Q

What is impedance of a STP cable? (37)

A

150Ω

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9
Q

What is the maximum length of a STP cable? (37)

A

90 meters / ~300 feet.

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10
Q

What is NEXT? (49)

A

Near End Crosstalk

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11
Q

What pin number is the Green Striped cable on the left?

A

Number 1.

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12
Q

What are the two solutions to Attenuation? (47)

A
  1. Don’t buy cheap cables
  2. Keep length within specifications
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13
Q

What unit is used to measure network speed? (51)

A

Megabits per Second

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14
Q

One megabit (one million bits) is equal to how many kilobits? (51)

A

125KB

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15
Q

Megahertz refers to the analog frequency of the _______ signal that is used to transmit the data. (52)

A

Carrier

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16
Q

Category 5E cables are tested at ___ [number] megahertz or higher (53)

A

100

17
Q

An electrical cable consisting of pairs of conductors that have identical electrical characteristics with respect to each other and with respect to ground is called? (56)

A

A Balanced Line

18
Q

An electrical cable in which the potential of the signal- carrying conductor is above ground while the return-path conductor is at ground potential is called? (57)

A

Unbalanced Line

19
Q

Coaxial cabling is a type of what line balance? (57)

A

Unbalanced Line

20
Q

What type of line balance is pictured? (58)

A

Balanced Line

21
Q

It is common practice to keep total lengths well below the ___ [number] metre limit (62)

A

100

Systems Infrastructure (10 decks)

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