Unit 4 Labs SJR
Exercise 4.1.1 So that each piece of equipment work together on a network work to together properly.
Exercise 4.1.2 Because the voltage uses to transmit data only needs to be high enough for the receiver to detect it.
Exercise 4.1.3 Shielded copper cables would be used where there is a possibility of more electric interference. To help prevent this interference with the cables.
Exercise 4.1.4 Category | Maximum Speed | Application | 1 | - | Telephone cabling (POTS) | 2 | 4Mbps | Token Ring | 3 | 4Mbps | Can be used for telephones | 4 | 16Mbps | Fast Token Ring | 5 | 1Gbps | Desktop cabling | 5e | 1Gbps | Gigabit Ethernet | 6 | 10Gbps | Multi gigabit Ethernet | 6a | 10Gbps | Multi gigabit Ethernet |
Exercise 4.1.5 Exercise 4.1.6 Coaxial cable has a copper core with an inner dielectric insulator, a woven copper shield, and an outer plastic sheath for protection.
Exercise 4.1.7 Not to go over the length of 85-90 meters between any given connection.
Exercise 4.1.8 Straight through cabling.
Exercise 4.1.9 No, S1-S2 and S2-G. Fiber Optics should be used in these cases.
Exercise 4.1.10
Multimeter – Measures voltage, current, and resistance.
Tone Generator - A signal generator used to generate an audio-frequency signal suitable for signaling purposes or for testing audio-frequency equipment.
Pair Scanner – An Ethernet cable tester
Time Domain Reflectometer - An electronic instrument that uses time-domain reflectometry to characterize and locate faults in metallic cables
Lab 4.2
Exercise 4.2.1 No it must have one fiber for transmitting and one for receiving because SMF can only send in one direction at a time due to its pathway being a single path straight through.
Exercise 4.2.2 Glass tubing inside because light travels father than copper.
Exercise 4.2.3 MMF bounces the signal around inside and SMF sends it straight through.
Lab 4.3

Exercise 4.3.1 TYPE | MaximumDistance | MaximumSpeed | Cost | Pros | Cons | UTP | 100m | 1Gbps | Low | Easy to install inexpensive, NIC’s are common in devices | Limited distance subject to interference | Coaxial (Thinnet) | 185m | 100Mbps | Medium | Flexible & easy to install, good electronic interference resistance | Short cable length, more expensive than UTP, unsecure, not good between buildings | Coaxial (Thicknet) | 500m | 100Mbps | Medium | Flexible & easy to install, good electronic interference resistance | Short cable length, more expensive than UTP, unsecure | MMF | 2km+ | 10Gbps | High | Fast transmission rate, low electric interference, secure, good between buildings | Most expensive, relatively difficult to work with | SMF | 10km+ | 10Gbps | High | Fast transmission rate, low electric interference, secure, good between buildings | Most expensive, relatively difficult to work with |

Exercise 4.3.2 UTP; same floor computer to computer and computer to switch or router MMF; same floor computer to switch, separate floor switch to switch or router SMF; separate building switch to switch or router
Exercise 4.3.3 UTP from computers A,B,C,D,E to S1 from S1 to R1 UTP from R1 to S2 Coaxial from S2 to computers F,G,H UTP. Based off charts done previously.
Exercise 4.3.4 UTP from computers A,B,C to R1, MMF from R1 to R2 and R3, from R2 to D,E,F UTP and from R3 to G,H UTP. Based off charts done previously.
Exercise 4.3.5 STP from A,B,C to R1, from R1 to I Coaxial, from R1 to R2 STP, from R2 to D,E,F STP, from R2 to R3 Coaxial, from R3 to G,H STP. Based off charts done preciously.

References
Cable media STP UTP SMF MMF Coaxial cable Thicknet RG-8 Thinnet RG-58. (2010). Retrieved from http://computernetworkingnotes.com/network-media-and-topologies/media-types.html
Kirby, D. (n.d.). Cabling. Retrieved from https://people.richland.edu/dkirby/141cabling.htm