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Fiber Optics
Quiz 2
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Q.1
The fiber optic transmitter has which of the following functions?
Amplifies the optical signal
Converts the electrical input signal to an optical signal
Converts the input optical signal to an electrical signal
Amplifies the output electrical signal
Q.2
What are the four parts of a fiber optic data link?
Transmitter, optical fiber, connectors/splices, receiver
Transmitter, optical fiber, data, optical connectors
Optical fiber, data, optical connectors, receiver
Optical fiber, optical connectors, optical splices, data
Q.3
Fiber optics uses what medium to send information?
Electrons
Phonons
Light
None of these are correct
Q.4
Which customer type(s) can use voice control through an Amazon Alexa device?
Legacy only
Quantum only
Legacy and Quantum
Q.5
Scenario: The customer is attempting to watch Netflix via the Set Top Box (STB) and receiving the message: ESN data is missing. What is the first step to resolve?
Create trouble ticket
Confirm the customer has a working internet connection
Advise the customer to exit and relaunch the Netflix app
Q.6
The 3 guide view options are?
Large, Medium and Small
Wide, Standard and Petite
Full, Half-Screen and Mini
Q.7
Which of the following are NOT available methods to access Netflix?
Menu > Video on Demand & Channel 1888
Menu > Pay Per View option & Channel 1001
Menu > DVR & Star button on the remote
Q.8
Scenario: A customer has 2 TVs one connected to a MotorolaSet Top Box (STB), the other connected to a DCT-Which of the following is true concerning this customer’s ability to view the Interactive Media Guide (IMG)?
Guide is only available on the DCT-700
Guide is available on both the Motorola 7232 STB and the DCT-700
Guide is only available on the Motorola 7232 STB
Q.9
To turn off closed captions, the customer will select the Menu > Settings > System and which option?
Accessibility
Parental/Purchase
Language
Q.10
The Caller ID on TV Availability option is found under which Menu option?
Settings > Notifications
Message Center > OK button
Widgets and Apps
None of these
Q.11
The customer is viewing Standard Definition content and wants to remove the black bars from the left and right of the screen. The customer will select: Menu >
Accessibility > Closed Caption
Audio and Video > Video Settings > SD Override
Audio and Video > Video Settings > Video Sharpness
All of above
Q.12
When a customer selects a future show from the TV programming guide/listings and wishes to record the entire series, rather than just a single episode the customer will take what steps?
Press OK
Press REC (Record) button once
Press REC (Record) button twice
Q.13
The refractive index of core and cladding for a step index fibre are 1.and 1.respectively. The numerical aperature of the fibre is
0.3523
0.59
0.13
2.71
Q.14
If the numerical aperature of an optical fibre is 0.then the maximum angle of incidence is __________ degree.
0.008
17.5
31
67
Q.15
The bending of a wave as it passes at an angle from one medium to another is called?
Convex Lens
Refraction
Concave Lens
Q.16
The bouncing off of light rays from the surface of an object such as a mirror or other shiny surface is called:
mirror
laser
reflection
refraction
Q.17
If the angle of incidence isdegree, what is the angle between the incident ray and reflecting surface
45
90
180
none of the above
Q.18
What is the angle between the reflected ray and the normal called as
angle of incidence
angle of reflection
angle of convergent
angle of divergent
Q.19
What is the angle between the incident ray and the normal called as
angle of incidence
angle of reflection
angle of convergent
angle of divergent
Q.20
The imaginary line perpendicular to a reflecting surface is called _____.
crooked line
parallel line
angular line
normal line
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