Reading Review Quiz (Week 10)

Question 1

Which way should the tab on the 8p8c modular plug face when making a straight-thru patch cable? *

Answer 1

Down

Question 2

Which of the following is the correct order of the ring colors according to the 25 pair color code? *

Answer 2

Blue, Orange, Green, Brown, Slate

Question 3

What are the two general types of fiber optic cable found in current networking environments? *

Answer 3

Singlemode and Multimode

Question 4

A Category 6 UTP cable that runs from the telecommunications room on floor 1 to an equipment room on floor 3 would be considered part of the cabling. *

Answer 4

Backbone

Question 5

When terminating a 4pair UTP CAT6 cable onto a 110 Style Patch Panel, in what order should the pairs be punched down? *

Answer 5

Always follow the color code that comes included with Patch Panel

Question 6

During the Rough-In cabling process the_____________________ is typically the starting point for cable pulls when cables are pulled from one area to another such as from a Telecommunications room to a work area. *

Answer 6

Staging Area

Question 7

What is the acronym that best describes a technology that passes electric power over twisted pair ethernet cabe to power devices such as wireless access points, VoIP phones, or security cameras? *

Answer 7

POE

Question 8

What does MDF stand for in relation to telecommunications? *

Answer 8

Main Distribution Frame

Question 9

What should you have included with the cables you ran thru the plenum ceiling in lab 6 (Rough-in) phase, to help facilitate installing additional cables in the future? *

Answer 9

String / Rope / Twine / Pull String

Question 10

Please identify part 3 on the image shown below? *

https://lh4.googleusercontent.com/e2uh8rbCFGysFRbxAaT_oL8Gvw-NCBUDVNRY6Mk2Nultvzt9ndx5N9lLWBWCcNEubGPvPtNY2bGTOng2Nthu5EBq04oHc8E8e54HG0eQroK1NFeH59YjRYm32hKMaTFctg=w236

Answer 10

Buffer

Question 11

In fiber optics the angle of incidence at which light is first totally internally reflected is known as the ______? *

Answer 11

Critical Angle

Question 12

________________ is a way of sending multiple signals or streams of information over a communications link at the same time in the form of a single, complex signal. *

Answer 12

Multiplexing

Question 13

____________________is the strength element of the fiber optic cable and specifically used so optical fibers are not damaged during installation. It also provides the mechanism for safely pulling the cable during installation. *

Answer 13

Aramid Yarn

Question 14

What is the name of the cable that contains gel to prevent water from entering into the fiber? *

Answer 14

loose tube cables

Question 15

Optical fiber is preferrable to copper cabling when_____________________________ *

Answer 15

• High bandwidth is required
• A distance longer than 100 meters is required
• Immunity to EMI is required

Question 16

850 nm wavelengths are used for longer distances in telecom? *

Answer 16

False

Question 17

_______________________is a measure of all reflections that are caused by the impedance mismatches at all locations along the link and is expressed in decibel (dB). *

Answer 17

Return Loss

Question 18

FTTH stands for? *

Answer 18

Fiber-to-the-home

Question 19

With regards to fiber optics refraction happens because? *

Answer 19

The light slows down in a material

Question 20

Fiber Optics is *

Answer 20

Communication over thin strands of glass

Question 21

What is the purpose of the cladding on the fiber cables? *

Answer 21

To prevent light from escaping, total internal reflection

Question 22

The image below is a picture of a ________________ fiber optic connector? *

https://lh6.googleusercontent.com/b1zi0jfm-EGO11hqUW6SUPFa471Q7nzr5I3lSaMtSm1sp40qita-q0azJKKHFZCqjrXnjx_qqeXPUmseO-sP0E-PzDWQK9C9FSb7KIst8j5zc8dM-D1wQU1k1nvIqpcQrQ=w254

Answer 22

SC

Question 23

The infrared lasers used in Fiber Optics cannot be seen and are therefore not considered dangerous to the naked eye. *

Answer 23

False

Question 24

Four components are needed in order for a fiber optic system to operate. Connectors are one of the four what are the other three? *

Answer 24

• Transmitter
• Receiver
• Fiber Optic cable