Monthly Review Quiz 3 (Week 13)

Question 1

On a screw terminal jack using the USOC color code, pair 2 would represent which two colors? *

Answer 1

Black/Yellow

Question 2

What part of the fiber carries the light and what part traps the light in the core? *

Answer 2

Core carries the light and cladding traps the light in the core

Question 3

What should a structured cabling installer be aware of when drilling into a wall, floor, or ceiling? *

Answer 3

• Concealed hazards
• Electric wiring
• Gas pipes
• Water pipes

Question 4

Pair number 17 in a 100 pair cable would be which color? *

Answer 4

Yellow/Orange

Question 5

What colors combined with white, identify the four pairs of UTP cable? *

Answer 5

Blue, Orange, Green, Brown

Question 6

You should never forget about safety in installations. Numerous possibilities exist and only vigilance will prevent accidents on the job. What THREE issues should you keep in mind when doing installations? *

Answer 6

• Observe ladder safety rules
• Always wear proper clothing
• Locate and avoid electrical wiring

Question 7

_____________________ cable is designed to operate in a “return air” space in the building. Typically these spaces are above a suspended ceiling or beneath a raised floor. They are a “return air” space because it’s where HVAC systems get the air to the heat or cool. *

Answer 7

Plenum Cable or CMP

Question 8

The three phases of a cabling installation project are? *

Answer 8

• Rough-in
• Trim-out
• Finish

Question 9

Cleaving is the process by which an optical fiber is cut or precisely broken for termination or splicing. Which of the following is the general strategy to be used when cleaving an optical fiber as demonstrated in the fiber optic lab? *

Answer 9

Score or scratch the glass surface using an approved cleaver and bend it until it breaks

Question 10

Attenuation in optical fiber is lowest at the 1320nm wavelength. *

Answer 10

False, because the lowest is 1550nm

Question 11

What are the three main wavelengths used for fiber optic transmission?

Answer 11

• 850nm
• 1300nm
• 1550nm

Question 12

What are data transfer speeds measured in? *

Answer 12

Bits

Question 13

At what layer of the OSI model do the 802.11 standards vary? *

Answer 13

Physical layer or layer 1

Question 14

What type of fiber-optic cable uses lasers to send signals? *

Answer 14

Single-mode

Question 15

What is the cable called connecting from the back of the modular jack to the back of the patch panel. *

Answer 15

Horizontal cable

Question 16

Noise that can degrade or distort a signal on a network is measured with what unit? *

Answer 16

Decibels

Question 17

Referring to networking cables, what does ScTP stand for? *

Answer 17

Screened Twisted Pair

Question 18

A ________ fiber-optic cable transmits multiple streams of LED-generated light. *

Answer 18

Multimode

Question 19

Wireless communication uses which of the following to transmit data between devices on a LAN? *

Answer 19

Radio frequencies

Question 20

Most fiber optic cables have a strength member for pulling, and some special cables can be pulled by the jackets, but you should never pull a cable by the ____________? *

Answer 20

Fiber Strands

Question 21

Analog systems transmit data as a continually varying signal whereas digital systems transmit data as a ____________________________ *

Answer 21

Stream of ones and zeros

Question 22

Refer to exhibit below: What is the name of the fiber-optic cable connector that uses a bayonet plug and socket._____________________? *

https://lh6.googleusercontent.com/lHq8qbK4VSafnk0UQVVn-eAFGGnkFGnnW_Cn28SOpYqKXO_vRvhBSFQMd5h3uxfhFyY-JJJvIOAnRj_WR7On0z6b3zxVqG2cRLHW5xo4k0M-_0YcMPdpi2Ba6yrEuVWEhw=w341

Answer 22

ST or Straight Tip

Question 23

In Canada the LEC brings an entrance cable into a building, installs a protector, and terminates the cable. Their responsibility ends at the _______________________________. *

Answer 23

Demarcation Point or Demarc

Question 24

A Fast Ethernet connection utilizes what pins on an RJ-45 plug? *

Answer 24

1236

Question 25

The most common process for voice conversion to a digital signal for transmission is called _______________ code modulation. *

Answer 25

Pulse