Q.1 What is the typical frequency range of a Co-Axial Cable?
100 KHz to 500 MHz
100 KHz to 50 MHz
100 GHz to 500 GHz
None
Explanation
Coaxial cables generally support a frequency range of 100 KHz to 500 MHz, making them suitable for radio frequency and cable television signals.
Q.2 Which of the following cables is standard for Television Networks?
Twisted pair cable
Fiber optic cable
Coaxial cable
None
Explanation
Coaxial cable is the primary medium used by cable TV providers to transmit video and data signals to homes.
Q.3 What are the two main types of Co-Axial Cable used in networking?
UTP and STP
Thinnet
Thicknet
Both B & C
Explanation
Coaxial cables are categorized as Thinnet (10Base2) and Thicknet (10Base5) based on their thickness and maximum segment length.
Q.4 Thinnet coaxial cable can carry a signal without degradation up to how many meters?
180
185
300
None
Explanation
Thinnet (10Base2) has a maximum transmission distance of approximately 185 meters per segment.
Q.5 Thicknet coaxial cable can carry a signal effectively up to how many meters?
200 M
500 M
185 M
None
Explanation
Thicknet (10Base5) is thicker and better shielded than Thinnet, allowing it to carry signals up to 500 meters.
Q.6 What is the approximate diameter of a Thinnet coaxial cable?
0.50 inches
0.55 inches
0.25 inches
None
Explanation
Thinnet cable is roughly 0.25 inches (6.4 mm) in diameter, making it more flexible and easier to install than Thicknet.
Q.7 What is the approximate diameter of a Thicknet coaxial cable?
0.5 inches
0.55 inches
0.25 inches
None
Explanation
Thicknet cable is about 0.5 inches (12.7 mm) in diameter, providing better protection against interference over longer distances.
Q.8 In coaxial cabling, what does the acronym BNC stand for?
Bayonet Neno Connector
Bayonet Network Connector
Bayonet Number Connector
None
Explanation
While technically ‘Bayonet Neill-Concelman’, in many networking contexts, it is commonly referred to as the Bayonet Network Connector.
Q.9 Which cables are composed of a glass or plastic inner core surrounded by cladding?
Ethernet
Twisted pair
Coaxial
Fiber optic
Explanation
Fiber optic cables consist of a core that carries light, surrounded by cladding that reflects the light back into the core.
Q.10 Which of the following cables carries data signals in the form of light?
Fiber optic
Twisted pair
Coaxial
None
Explanation
Unlike copper cables that use electrical pulses, fiber optic cables use pulses of light to transmit data at very high speeds.
Q.11 In fiber optics, the signal is propagated along the inner core by the principle of?
Refraction
Reflection
Modulation
None
Explanation
Fiber optics work on the principle of Total Internal Reflection, where light reflects off the cladding to stay inside the core.
Q.12 What is the nature of the signal transmitted through a fiber optic cable?
Light
Radio
Infrared
None
Explanation
Data is converted into light pulses (using LEDs or lasers) for transmission through the glass or plastic fibers.
Q.13 What is the typical composition of the inner core of an optical fiber?
Glass & Plastic
Copper
Liquid
None
Explanation
The core of an optical fiber is made of high-quality glass (silica) or plastic that allows light to travel through it.
Q.14 Which of the following are main components of a fiber optic communication system?
Detector
Light Source
Transmission Medium
All of these
Explanation
A complete system requires a light source (transmitter), the fiber cable (medium), and a detector (receiver).
Q.15 Which of the following media offers the highest data transmission speed?
Twisted pair cable
Fiber optic cable
Satellite
None
Explanation
Fiber optic cables provide the highest bandwidth and data rates, reaching speeds of several Terabits per second.
Q.16 Which of the following is NOT a standard connector type for fiber optic cables?
ST Connector
SC Connector
SJ Connector
None
Explanation
ST (Straight Tip) and SC (Subscriber Connector) are common fiber connectors; ‘SJ’ is not a standard designation in this context.
Q.17 The loss of signal power as light travels down a fiber optic cable is known as?
Propagation
Attenuation
Scattering
None
Explanation
Attenuation refers to the gradual reduction in signal strength as it travels through a medium, caused by absorption or scattering.
Q.18 Which of the following are properties or behaviors studied in Optical Cabling?
Propagation
Attenuation
Light collection
All of these
Explanation
All these factors determine how efficiently an optical fiber can transmit data over a specific distance.
Q.19 Which cable type is preferred for reliable undersea long-distance communication?
Twisted Pair Cable
Co-Axial Cable
Fiber Cables
All of these
Explanation
Fiber optic cables are preferred for undersea links because they are immune to electromagnetic interference and have very low signal loss.
Q.20 In which of the following cables is an electrical signal NOT present during transmission?
Twisted pair cable
Coaxial Cable
Fiber Optic Cable
All of these
Explanation
Fiber optic cables transmit data using light pulses; therefore, they do not carry an electrical current, making them safe from sparks or EMI.
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