HSM478 C2 Quiz

What are the three main components of a communication system?

• Input, Output, Feedback

• Sender, Receiver, Channel

• Transmitter, Signal, Data

• Noise, Attenuation, Distortion

What is a key function of the transmitter in a communication system?

• Weakening the signal over distance

• Sending information as a function of time, s(t)

• Receiving the transmitted information

• Introducing additive noise to the channel

Which of the following is NOT a type of channel degradation?

• Additive noise

• Distortion

• Attenuation

• Amplification

Severe corruption and noise can make it impossible for the receiver to interpret the transmitted information.

• True

• False

Telemedicine systems are only capable of transferring information over short distances within a device.

• True

• False

Communication channels can be either physical, like copper conductors, or wireless, transmitting information over the air.

• True

• False

What represents a "1" in fiber optic communication?

• A current pulse

• The presence of light

• The absence of light

• A metallic strand

What is the primary disadvantage of coaxial cables in telemedicine networks?

• Low transmission rates

• High cost

• Bulkiness

• Lack of insulation

Which type of fiber optic cable supports higher transmission rates and is more reliable?

• Plastic fiber

• Glass fiber

• Metal conducting cable

• Coaxial cable

The cladding in a fiber optic cable reflects light back into the core to prevent light from escaping.

• True

• False