Chapter 5

Question 1

What are the three main types of physical cabling?

Answer 1

Coaxial, TP and Fiber Optic

Question 2

What are the common types of coaxial cables used and what are they used for?

Answer 2

RG-6 coax for digital cable/satellite TV and RG-59 coax for analog cable TV

Question 3

What is the maximum distance for a RG-6 coax cable?

Answer 3

304m

Question 4

What is the maximum distance for a RG-59 coax?

Answer 4

228m

Question 5

What type of coax cable would you use for digital cable/satellite TV?

Answer 5

RG-6

Question 6

What type of coax cable would you use for analog cable TV?

Answer 6

RG-59

Question 7

What types of fiber optic cable are available?

Answer 7

SMF and MMF fiber

Question 8

What are the main types of TP cabling in use?

Answer 8

Cat 5 UTP or STP, Cat 5e UTP, Cat 6 UTP, Cat 6A UTP, Cat 7 STP and Cat 8 STP

Question 9

What are the specs for different categories of TP cables?

Answer 9

Cat 5 - up to 100Mbps, up to 100m (100BaseT)
Cat 5e - up to 1GBps, up to 100m (1000BaseT)
Cat 6 - up 10 10Gbps, up to 55m (10GBaseT)
Cat 6a - up to 10Gbps, up to 100m (10GBaseT)
Cat 7 - up to 10Gbps, up to 100m (10GBaseT)
Cat 8 - up to 25/40Gbps, up to 30 metres OR 100Gbps up to 100m (25GBaseT or 40GBaseT)

Question 10

Why would you use Cat 6 if it has lower speed rates than previous categories?

Answer 10

It’s the lowest grade usable for connecting different parts of a large network, such as over different floors of a building

Question 11

Which categories of TP use STP?

Answer 11

Cat 7 and 8

Question 12

What fiber optic cables are available?

Answer 12

MMF fiber - 1Gbps up to 550m (1000BaseLX or 1000BaseSX)
MMF fiber - 10Gbps up to 300m (10GBaseSR or 10GBase SW)
SMF fiber - 10Gbps up to 40km (10GBaseER or 10GBaseEW)

Question 13

Where is MMF typically used?

Answer 13

In shorter, horizontal cables

Question 14

Where is SMF typically used?

Answer 14

In phone systems and backbone cabling, or longer cabling

Question 15

What are the pros and cons of fiber optic?

Answer 15

Pros - immune to electrical interference
Cons - expensive and the signal will eventually degrade

Question 16

When would you use an extra waterproof sheathing?

Answer 16

For running cables outside of underground

Question 17

When would we use a cable guard?

Answer 17

If a cable might be stepped on

Question 18

How deep should cables be buried?

Answer 18

6” to 8” below ground

Question 19

What types of connectors are used for coaxial cables?

Answer 19

vampire taps, BNC and T connectors are older but not really used now

F type connectors are common, mostly for RG-6 but sometimes RG-59

Question 20

How would you select and connect and connector for a coaxial cable?

Answer 20

I would use an F type connector, push the exposed end of the copper into the F type connector and screw it into place

Question 21

What type of connector would you use with a Class I Cat 8 (Cat 8.1) cable?

Answer 21

RJ-45

Question 22

How would you use a RJ-45 connector with a Class II Cat 8 (8.2) cable?

Answer 22

I wouldn’t, they aren’t compatible

Question 23

What connector types are available for TP cables?

Answer 23

RJ-45, RJ-11 and punchdown blocks (66 or 110)

Question 24

Why would you use a crimper?

Answer 24

To connect an RJ connector to a TP cable

Question 25

Why would you use a splitter?

Answer 25

To split TP cabling into two sets of signals using two pairs per signal. However, it's better to use a hub or switch

Question 26

What colour is assigned to TP pair 1?

Answer 26

Blue

Question 27

What colour is assigned to TP pair 2?

Answer 27

Orange

Question 28

What colour is assigned to TP pair 3?

Answer 28

Green

Question 29

What colour is assigned to TP pair 4?

Answer 29

Brown

Question 30

Which wire of each TP pair is twisted with white?

Answer 30

Wire 1

Question 31

What is the T568A cabling standard?

Answer 31

Pin 1: Pair 3 Wire 1 - White/green Pin 2: Pair 3 Wire 2 - Green Pin 3: Pair 2 Wire 1 - White/orange Pin 4: Pair 1 Wire 2 - Blue Pin 5: Pair 1 Wire 1 - White/blue Pin 6: Pair 2 Wire 2 - Orange Pin 7: Pair 4 Wire 1 - White/brown Pin 8: Pair 4 Wire 2 - Brown

Question 32

What is the T568B cabling standard?

Answer 32

Pin 1: Pair 2 Wire 1 - White/orange Pin 2: Pair 2 Wire 2 - Orange Pin 3: Pair 3 Wire 1 - White/green Pin 4: Pair 1 Wire 2 - Blue Pin 5: Pair 1 Wire 1 - White/blue Pin 6: Pair 3 Wire 2 - Green Pin 7: Pair 4 Wire 1 - White/brown Pin 8: Pair 4 Wire 2 - Brown

Question 33

What changes in crossover cabling?

Answer 33

Essentially swaps to the other standard, but reverses the blue and brown cable pairs

Question 34

What colour is the cable in pin 1 under T568A?

Answer 34

White/green

Question 35

What colour is the cable in pin 2 under T568A?

Answer 35

Green

Question 36

What colour is the cable in pin 3 under T568A?

Answer 36

White/orange

Question 37

What colour is the cable in pin 4 under T568A?

Answer 37

Blue

Question 38

What colour is the cable in pin 5 under T568A?

Answer 38

White/blue

Question 39

What colour is the cable in pin 5 under T568A?

Answer 39

Orange

Question 40

What colour is the cable in pin 7 under T568A?

Answer 40

White/brown

Question 41

What colour is the cable in pin 8 under T568A?

Answer 41

Brown

Question 42

What colour is the cable in pin 1 under T568B?

Answer 42

White/orange

Question 43

What colour is the cable in pin 2 under T568B?

Answer 43

Orange

Question 44

What colour is the cable in pin 3 under T568B?

Answer 44

White/green

Question 45

What colour is the cable in pin 4 under T568B?

Answer 45

Blue

Question 46

What colour is the cable in pin 5 under T568B?

Answer 46

White/blue

Question 47

What colour is the cable in pin 6 under T568B?

Answer 47

Green

Question 48

What colour is the cable in pin 7 under T568B?

Answer 48

White/brown

Question 49

What colour is the cable in pin 8 under T568B?

Answer 49

Brown

Question 50

What colour are patch cables?

Answer 50

Black

Question 51

When do you need to use a crossover cable?

Answer 51

When connecting a computer to a router or a switch, or when connecting two computers or two hubs or two routers

Question 52

What are the specs (ethernet, max speed and max distance) of a Cat 5 UTP/STP cable?

Answer 52

100BaseT, 100Mbps and 100m

Question 53

What are the specs (ethernet, max speed and max distance) of a Cat 5e UTP cable?

Answer 53

1000BaseT, 1Gbps and 100m

Question 54

What are the specs (ethernet, max speed and max distance) of a Cat 6 UTP/STP cable?

Answer 54

10GBaseT, 10Gbps and 55m

Question 55

What are the specs (ethernet, max speed and max distance) of a Cat 6a UTP/STP cable?

Answer 55

10GBaseT, 10Gbps, 100m

Question 56

What are the specs (ethernet, max speed and max distance) of a Cat 7 STP cable?

Answer 56

10GBaseT, 10Gbps and 100m

Question 57

What are the specs (ethernet, max speed and max distance) of a Cat 8 STP cable?

Answer 57

10GBaseT, 10Gbps and 100m

Question 58

What are the specs (ethernet, max speed and max distance) of a MMF fiber cable?

Answer 58

1000BaseLX or 1000Base SX, 1 Gbps and 550m OR 10GBaseSR or 10GBaseSW, 10Gbps and 300m

Question 59

What are the specs (ethernet, max speed and max distance) of a SMF fiber cable?

Answer 59

10GBaseER or 10GBaseEW, 10Gbps and 40km

Question 60

What types of connectors would you use for a fiber optic cable?

Answer 60

ST (straight tip), SC (subscriber/square connector) or LC (lucent connector)

Question 61

How would you use an ST connector on a fiber optic cable?

Answer 61

Using the twist and lock attachment

Question 62

How would you use an SC connector on a fiber optic cable?

Answer 62

Releasing the latch to attach/remove

Question 63

Where are SC connectors mostly used?

Answer 63

For SMF or MMF fiber optic cables

Question 64

Where are LC connectors mostly used?

Answer 64

With adapters, fast storage area networks and Gigabit ethernet adapters