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Network + > Topologies and Cabling > Flashcards

Topologies and Cabling Flashcards

1
Q

Most popular Topology used today

A

Star-Bus / or Hybrid Topology

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2
Q

Where all hosts are connected to all host at the same time and is great for Wireless networks.

A

Mesh Topology (or Mess)

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3
Q

Mesh Topologies have __________ which when a cable breaks between 2 computers, it doesn’t affect the connection between the other machines.

A

Fault Tolerance

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4
Q

Partially Mesh networks use________ for better connectivity

A

Extenders

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5
Q

How is the Electronic Circuit Flow of Frames explained?

A

Logical Topology

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6
Q

What determines which coax cable it is, thickness, and conductor

A

RG or ( Radio Grade ) rating

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7
Q

Resistance is measured in:

A

OHMS

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8
Q

RG-6 is the standard Coax Cable used and works up to:

A

75 OHMS

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9
Q

Standard connector used on RG-6

A

F-Type

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10
Q

What type of connector Pushes on and twist?

A

BNC

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11
Q

What type of cable has 2 inner conductors in a twisted pair instead of 1

A

Twinaxial / Twinax cable

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12
Q

Twinax use what type of connectors

A

BNC and SFP+

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13
Q

Coaxial Advantages

A
  • highly resistance to Electromagnetic Interference (EMI)
  • Highly resistance to physical damage
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14
Q

Coaxial Disadvantages

A
  • Inflexible or difficult to install
  • Expensive
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15
Q

Benefits of Twisted Cables :

A
  • reduce Electromagnetic Interference ( EMI )
  • reduce Crosstalk
  • utilize 4-Pairs
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16
Q

UTP has a maximum distance of:

A

4-pairs
100 meters or 325 ft

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17
Q

Ethernet uses what type of connectors:

A

RJ-45

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18
Q

UTP’s have 2 terminating standards which are:

A
  • TIA/EIA 568-A
  • TIA/EIA 568-B
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19
Q

Which twisted pair used silver foil type wrapping around wires, and is great when heavy electricity is close?

A

Shielded Twisted Pair ( STP )

20
Q

Cat 5 rating

A

100 meters distance and Max Bandwidth is 100 Mbps up to 1 Gbps

21
Q

Cat 5e Rating

A

100 meters distance and Max Bandwidth is 1 Gbps ( also better EMI protection )

22
Q

Cat 6 rating

A

55 Meters in distance and Max Bandwidth 10 Ggps ( only up to 55 meters with a 10GBASE-T network )

23
Q

Cat 6a rating

A

100 meters in distance and Max Bandwidth is 10 Gbps ( better EMI and crosstalk protection )

24
Q

Cat 7 Rating

A

100 meters in distance and Max Bandwidth 10+ Gbps

25
Q

Cat 8 Rating

A

100 meters in distance and Max Bandwidth is 25 Gbps ( 40 Gbps at 30 meters, 40GBASE-T network )

26
Q

UTP Ratings define the:

A
  • Speed
  • length of cables
27
Q

Fiber optic Cables are made up of?

A
  • Core
  • Cladding
  • Jacket
28
Q

In fiber optics, this always has 2 connectors and are used on a Switch or Router

A

Fiber Card

29
Q

What are the 2 modes of Fiber Optics?

A
  • Single
  • Multimode
30
Q

Multimode uses what type of signal?

A

Led signals

31
Q

Single mode uses what type of signal?

A

Laser signal, thinner fiber, cladding is tighter, long distance

32
Q

Single mode color is:

A

Almost always yellow

33
Q

Multimode color is:

A

Almost always orange

34
Q

Fiber Duplex Cables has how many cables

A

2

35
Q

oldest round fiber connectors are known as:

A

ST connectors / longer light conductor and twists in

36
Q

oldest square fiber connectors are known as:

A

SC connectors / pushes in

37
Q

another older round fiber connector is known as:

A

FC connectors / short light conductor and screws in

38
Q

Newer square Fiber connector and is an actual double connector

A

LC connector and is beige

39
Q

Newer single fiber connector ( has both fibers into the one connector:

A

MT-RJ connector and is black

40
Q

PC ( Physical Contact ) polishing looks like

A

Square but slightly round edges

41
Q

UPC ( Ultra Physical Contact ) polishing looks like

A

basically rounded edges / has less light loss than PC / high quality

42
Q

APC 9 polishing looks like

A

Has a 7 degree angle / High quality

43
Q

What are the 3 fire ratings:

A
  • Plenum-Rated ( space between ceiling and roof / concrete and floor Higher rating / 2 to 3 time more expensive
  • Riser-Rated ( goes between floors )
  • PVC or non-plenum / lowest, no fire rating, and is non-plenum
44
Q

2 Topologies are:

A

Physical - how a network is laid out.
Logical - Explains how data is sent between them.

45
Q

What is the oldest Topology where computers share the same bandwidth and utilize “Drop Downs” or one single trunk

A

Bus Topology

46
Q

IBM created - all computers are connected basically in a circle:

A

Ring Topology

47
Q

Computers are plugged into a hub / switch in the center of the computers

A

Star Topology

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