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WorksheetsOptic fiber
Total questions: 85
Worksheet time: 4hrs 46mins
Fiber optics uses what medium to send information?
Electrons
Phonons
Light
None of these are correct
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
The fiber optic receiver performs which of the following functions?
Amplifies the optical signal
Amplifies the electrical signal
Converts the electrical signal back into an optical signal
Converts the optical signal back into an electrical signal
Which cable sends data as light?
Copper
Fibre Optic
Ethernet
Fiber optics uses what medium to send information?
Electrons
Phonons
Light
None of these are correct
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
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
What transmitter uses stimulated emission?
LED
LASER
VCSEL
APD
Fiber optic systems use what three types of optical sources?
LEDs, LASERs and VCSELs
PIN diodes, LASERs and LEDs
LEDs and LASERs and diodes
LASERs, diodes and APDs
The fiber optic receiver performs which of the following functions?
Amplifies the optical signal
Amplifies the electrical signal
Converts the electrical signal back into an optical signal
Converts the optical signal back into an electrical signal
What are the two types of optical detectors?
LEDs and APDs
PIN photodiodes and APDs
APDs and laser diodes
Laser diodes and PIN photodiodes
Who developed the first optical telegraph?
Kapany
Tyndall
Chappe
Wheeler
Who demonstrated the concept of “Total Internal Reflection?”
Kapany
Tyndall
Chappe
Wheeler
Of the following advantages, which one does NOT apply to fiber optics?
Lower signal attenuation
Increased bandwidth
Common ground required
Reduced size and weight
A Laser differs from ordinary light in three distinct ways. Its coherent, directional and monochromatic.
True
False
No matter where you are (a) percent of the distance your voice travels is through a fiber optic network
The basic structure of an optical fiber consists of which three parts?
Core
Ground
Cladding
Buffer
LED transmitters operate at wavelengths of 850nm and 1300nm.
True
False
In an optical system light OFF is a “1” and light ON is a “0”.
True
False
Figure 1
Figure 1 shows fiber optic cable structure. Choose the CORRECT function of cladding.
Transports optical data signals
Protects glass from surface scratches and surface contaminants
Reinforce the fiber core, help absorb shock and provide extra protection against excessive cable bends
Protect the core against crushing forced and excessive tension during installation
Fiber optics provide data security.
True
False
Fiber optics are immune to electromagnetic interference.
True
False
Fiber-optic cable uses _____ instead of electrical energy to transmit data.
satellite transmissions
microwaves
radio waves
light pulses
Which cable sends data as electricity?
Copper
Fibre Optic
Ethernet
Which cable sends data as light?
Copper
Fibre Optic
Ethernet
Fibre optic cables are often used for WANs because ....
they provide very high bandwidth
they need less technical skill to set up than Wi-Fi
they can transmit images, video and music
On a wireless network ..... can introduce errors
radio interference
electric motors
satellite interference
As a cable get ...... the signal can become too weak and errors can begin to creep in.
narrower
longer
shorter
wider
...... describes how much time it takes for a data packet to travel across the network.
Larceny
Latency
Literacy
Lag
Which cable sends data as electricity?
Copper
Fibre Optic
Ethernet
Which cable sends data as light?
Copper
Fibre Optic
Ethernet
How do fiber optic cables work?
They transmit data as magnetic waves through metal rods.
They transmit data as pulses of light through thin strands of glass or plastic fibers.
They transmit data as sound waves through the air.
They transmit data as electrical signals through copper wires.
What are the advantages of using fiber optic cables?
Slow data transfer rates, high signal loss, and susceptibility to electromagnetic interference
Limited data transfer rates, high signal loss, and vulnerability to electromagnetic interference
Moderate data transfer rates, moderate signal loss, and resistance to electromagnetic interference
High data transfer rates, low signal loss, and immunity to electromagnetic interference
What are the disadvantages of fiber optic cables?
Unlimited flexibility, low cost, and resistance to damage
High flexibility, low cost, and resistance to damage
Limited speed, low cost, and durability
Limited flexibility, high cost, and susceptibility to damage
How would you explain the installation process of fiber optic cables to Anika, Zoe, and Liam in a fun and engaging way?
The installation process includes painting the cables to match the surroundings for better camouflage.
The installation process involves digging a trench and burying the cable underground.
The installation process involves planning the route, preparing the cable, laying the cable, and connecting it to the network.
Fiber optic cables are installed by simply hanging them from telephone poles.
Can you share some fascinating facts about fiber optic cables?
Fiber optic cables use electricity to transmit data.
Fiber optic cables are made of copper wires.
Fiber optic cables use light signals to transmit data.
Fiber optic cables are only used for telephone communication.
What are fiber optic cables and how are they used?
A type of cable that contains one or more optical fibers used to carry light.
A type of cable that contains rubber tubes used to carry water.
A type of cable that contains copper wires used to carry electricity.
A type of cable that contains plastic fibers used to carry data.
What is the main principle behind the functioning of fiber optic cables?
Total internal reflection
Radio wave transmission
Metallic conduction
Chemical reaction
What are the top three advantages of using fiber optic cables over traditional copper cables? Share your thoughts, Sophia, Lily, and Mason!
Susceptible to electromagnetic interference
1. Greater bandwidth 2. Faster data transmission 3. Immunity to electromagnetic interference
Cheaper to install
Slower data transmission
What challenges do Zoe, Evelyn, and James face when installing fiber optic cables?
Low cost, no specialized equipment, and unskilled technicians required for installation
High cost, specialized equipment, and skilled technicians required for installation
Easy to install without any need for skilled technicians or specialized equipment
No challenges involved in the installation of fiber optic cables
Fiber optics uses what medium to send information?
Electrons
Phonons
Light
None of these are correct
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
The fiber optic receiver performs which of the following functions?
Amplifies the optical signal
Amplifies the electrical signal
Converts the electrical signal back into an optical signal
Converts the optical signal back into an electrical signal
Which cable sends data as light?
Copper
Fibre Optic
Ethernet
