Media and Cabling Distribution

Question 1

Coaxial Cables

Answer 1

RG-6
- Commonly used by local cable companies to connect individual
homes
RG-59
- Typically used to carry composite video between two nearby
devices, such as from a cable box to the television

Question 2

Coaxial Connectors

Answer 2

F-connector
- Typically used for cable TV and cable modem connections
BNC
- Termed Bayonet Neill-Concelman or British Naval Connector
- Was used for 10BASE2 Ethernet networks

Question 3

Serial Cable

Answer 3

• Usually have a series of straight copper wires inside a single cable or plastic jacket
• DB-9 or DB-25 (RS-232)
• 9-pin or 25-pin D-subminiature
• Used for asynchronous serial communications and connecting to
  an external modem

Question 4

Twisted Pair Cables

Answer 4

Unshielded Twisted Pair (UTP)
Shielded Twisted Pair (STP)

Question 5

Twisted Pair Connectors

Answer 5

RJ-45
- 8-pin connector in Ethernet networks
- Most Ethernet use only 4-pins
RJ-11
- 6-pin connector
- Commonly only 2 or 4 pins are used
- Commonly found in telephone systems

Question 6

CAT3

Answer 6

10base-t
10Mbps
100m

Question 7

CAT5

Answer 7

100base-tx
100Mbps
100m

Question 8

CAT5e

Answer 8

1000base-t
1000Mbps
100m

Question 9

CAT6

Answer 9

1000base-t/10Gbase-t
1000Mbps/10Gbps
100m/55m

Question 10

CAT6a

Answer 10

10Gbase-t
10Gbps
100m

Question 11

CAT7

Answer 11

10Gbase-t
10Gbps
100m

Question 12

CAT8

Answer 12

40Gbase-t
40Gbps
30m

Question 13

DTE

Answer 13

Data Terminating Equipment
“Endpoint” devices that connect to a piece of data
communications equipment or DCE (e.g. laptops,
desktops, servers, and routers)

Question 14

DCE

Answer 14

Data Communications Equipment
Includes things like switches, modems, hubs, and bridges

Question 15

Straight-through connection

Answer 15

DTE to DCE
DCE to DTE

Question 16

Crossover

Answer 16

DTE to DTE
DCE to DCE

Question 17

TIA/EIA-568A

Answer 17

white/green
green
white/orange
blue
white/blue
orange
white/brown
brown

Question 18

TIA/EIA-568B

Answer 18

white/orange
orange
white/green
blue
white/blue
green
white/brown
brown

Question 19

MDIX

Answer 19

Medium Dependent Interface Crossover
- An automated way to electronically simulate a crossover cable connector even if using a straight-through patch cable
- If a switch doesn’t support MDIX, use a crossover cable to make them talk

Question 20

Plenum Cable

Answer 20

• A special coating put on a UTP or an STP cable that provides a fire retardant chemical layer to the outer insulating jacket
• Minimizes dangerous fumes if cable on fire
• Safe for use in ceilings, walls, and raised floors

Question 21

Non-plenum Cable

Answer 21

• Also known as PVC
• Normal UTP/STP rated cable
• Cannot be used in raised floors, ceilings, or walls

Question 22

SMF

Answer 22

Single-Mode Fiber
- Used for longer distances and has smaller core size which allows for only a single mode of travel for the light signal
- SMF’s core size is 8.3-10µ in diameter

Question 23

MMF

Answer 23

Multimode Fiber
- Used for shorter distances and has larger core size which allows for multiple modes of travel for the light signal
- MMF’s core size is 50-100µ in diameter
- Up to 2 km or less

Question 24

APC

Answer 24

Angled Physical Connector

Question 25

UPC

Answer 25

Ultra Physical Contact

Question 26

WDM

Answer 26

Wavelength Division Multiplexing
Combines multiple signals into one signal and sends over a single fiber optic strand using different wavelengths of the laser light source

Question 27

Transceivers

Answer 27

SFP (Small forma-factor pluggable)
- Up to 4.2Gbps
SFP+
- Up to 16Gbps
QSFP (Quad small forma-factor pluggable)
- Up tp 40Gbps
QSFP+
- Up to 41.2Gbps
QSPF28
- Up to 100Gbps
QSFP 56
- Up to 200Gbps

Question 28

100BASE-FX

Answer 28

MMF
100Mbps
2km

Question 29

100BASE-SX

Answer 29

MMF
100Mbps
300m

Question 30

100BASE-SX

Answer 30

MMF
1000Mbps
220-550m

Question 31

1000BASE-LX

Answer 31

SMF/MMF
1000Mbps
5km/550m

Question 32

10GBASE-SR

Answer 32

MMF
10Gbps
400m