Installing a Physical Network Chapter 5

Question 1

What are Patch Cables used far?

Answer 1

Connect patch pannel to switch and PC to outlet boxes

Question 2

What is Port Aggregation?

Answer 2

bonding or link agregation
used to allow multiple nics in one computer for better network bandwidth

Question 3

What is a time domain refecltometer (TDR)?

Answer 3

(TDR) Generic term that can determine locations of cable breaks

Question 4

What is difference between solid and stranded core UTP?

Answer 4

Solid: uses single solid wire, Better conductor, stiff will break if handled poorly
Stranded: Each is bundle of wire strands; Flip pros and cons of solid

Question 5

How wide are network equipment racks?

Answer 5

19 inches wide

Question 6

What is a patch panel?

Answer 6

Box with row of female ports in front and permanent connections in back for horizontal cables. Faciitate cable organization and protect horizontal cableing.

Question 7

What is horizontal cabling?

Answer 7

Network cables that connect equipment room to work areas. Tend to consist of SOLID Core UTP and exist in walls/ceilings/floors

Question 8

What are patch Cables?

Answer 8

Short, 2-5 ft UTP cables that connect patch panels to switches

Question 9

How does an open or short issue affect copper cables?

Answer 9

Open is when any of the wires are broken or unconnected in the crimp

Short is two bare wires touching

Both are issues with connectivity

Question 10

What does a Wire Map Test do?

Answer 10

Ensures copper cables connect to right spot and picks up shorts, crossed wires

Question 11

What is a Multimeter?

Answer 11

Tests AC and DC voltage, current, continuity and resistance

Question 12

What is cross talk?

Answer 12

Electrical Signal Interference ESI between two cables that are in close proximity to each other.

Question 13

What is attenuation?

Answer 13

Degradation of signal over distance for a networking cable

Question 14

How is signal loss measured?

Answer 14

decibels (dB)

Question 15

What is dispersion?

Answer 15

Diffusion over distance of light propagating down fiber cable causing signal degradation.

Question 15

What is an Optical Time Doman Reflectometer (OTDR)

Answer 15

Tester of fiber cables to find cable breaks, continuity

Question 15

What is a loopback test?

Answer 15

Test that sends data out of a nic and checks to see if it comes back. Software versions that dont test the actual port are commonly included in the devices own diagnostics. Physical loop test require loopback plug and will include port.

Question 15

What is a Loopback Plug?

Answer 15

Network connector that connects back into itself for physical loopback testing