Lesson 12: Deploying and Troubleshooting Cabling Solutions

Question 1

Legal regulations

Answer 1

Building codes
Electrical/Fire safety
FCC regulations

Question 2

Main Distribution Frame (MDF)

Answer 2

Houses the point of demark

Question 3

Intermediate Distribution Frame (IDF)

Answer 3

Connects to the MDF using backbone cabling

Question 4

Patch Panels

Answer 4

Less chance of damaging difficult to replace cabling

Question 5

Radio Grade (RG) Standards

Answer 5

RG-6 - modern Cable Access TV (CATV)/cable modems

RG-59 for older CATV installs and Closed Circuit TV (CCTV)

Question 6

Fiber Optic Connectors

Answer 6

BNC

F-type

Question 7

Serial Interface

Answer 7

RS-232 standard

DB-9 connector

Question 8

Unshielded Twisted Pair (UTP)

Answer 8

Copper cable type where each pair of wire is twisted to reduce interference (cross talk)

Question 9

Shielded Twisted Pair (STP)

Answer 9

Shielding around each pair/

screening around all pairs to reduce interference

Question 10

Cat 3 standards

Answer 10

16 MHz
10 Mbps
100m/328 feet
10BASE-T

Question 11

Cat 5 standards

Answer 11

100 MHz
100 Mbps
100m/328 feet
100BASE-TX

Question 12

Cat 5e

Answer 12

100 MHz
1 Gbps
100m/328 feet
1000BASE-T

Question 13

Cat 6A

Answer 13

500 MHz
10 Gbps
100m/328 feet
10GBASE-T

Question 14

Twisted Pair Connectors

Answer 14

RJ-45 or 8P8C (Ethernet

RJ-11 or 6P2C (Phone/Modem)

Question 15

T568A Termination Standards

Answer 15

Green Stripe / Green
Orange Stripe / Blue
Blue Stripe / Orange
Brown Stripe / Brown

Question 16

T568B Termination Standards

Answer 16

Orange Stripe / Orange
Green Stripe / Blue
Blue Stripe / Green
Brown Stripe / Brown

Question 17

Straight-Through cable

Answer 17

T568A/B

Both sides terminated to A or B

Question 18

Crossover cable

Answer 18

TX/RX reverse
One side terminated A and the other B
Used for connecting similar devices (pc to pc, switch to switch)

Question 19

What is a plenum space?

Answer 19

A void in a building designed to carry heating, ventilation, and air conditioning (HVAC) systems

Question 20

What are riser cables?

Answer 20

Marked CMR/MPR

Used in lift shafts, etc

Question 21

What are plenum-safe cables?

Answer 21

Marked CMP/MMP

Fire retardant, must not emit large amounts of smoke when burned, be self-extinguishing

Question 22

Cable testers

Answer 22

Crosstalk, attenuation, noise, resistance, and other characteristics of a cable run

Question 23

Cable certifiers

Answer 23

Measure install cable against standard

Question 24

Tone generator and probe

Answer 24

Fox and Hound

Cable tracing

Question 25

Time Domain Reflectometer (TDR)

Answer 25

Detect cable breaks

Isolate position of fault

Question 26

Green Link LEDs

Answer 26

Solid Green- Connected but no traffic

Flickering Green - No faults

Question 27

Amber or no LEDs

Answer 27

No light - link is not working or disconnected
Blinking Amber - Fault detected
Solid Amber - Port disabled

Question 28

Troubleshooting cables

Answer 28

Substitute with ‘known good’

Use loopback plug to test for bad ports

Question 29

Electromagnetic Interference (EMI)

Answer 29

interference from sources such as electrical power cables, fluorescent lights, motors, electrical fans, radio transmitters
Alien crosstalk

Question 30

Fiber Optic Cable

Answer 30

Low attenuation, high bandwidth.
Core of glass or plastic,
Cladding for the frequencies inside the, core to bounce around

Question 31

Single Mode Fiber (SMF)

Answer 31

Expensive optics (long wavelengths)
Used for long-range applications

Question 32

Multimode Fiber (MMF)

Answer 32

Cheaper optics (shorter wavelengths)
Shorter range
Optical Mode (OM) cable categories

Question 33

Straight Tip (ST)

Answer 33

Push and twist locking mechanism

Question 34

Local Connector (LC)

Answer 34

Lock and click

like RJ-45