Domain 1: Signal Fundamentals & Transmission Media
Understanding how data is converted into physical signals is a cornerstone of
this course.
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, 1. Q: What is the primary difference between an analog and a digital
signal?
o ANSWER Analog signals are continuous waves; digital signals are
discrete, consisting of binary 1s and 0s.
2. Q: What term describes the loss of signal strength as it travels through a
medium?
o ANSWER Attenuation.
3. Q: Which transmission medium is immune to Electromagnetic
Interference (EMI)?
o ANSWER Fiber Optic Cable (uses light instead of electricity).
4. Q: What does 10BaseT specify in terms of cable and speed?
o ANSWER 10 Mbps over Twisted Pair (UTP) cable.
5. Q: What is the maximum distance for a standard Category 5e/6 Ethernet
cable?
o ANSWER 100 meters.
6. Q: Which cable type uses an RG-58 classification and BNC connectors?
o ANSWER 10Base2 (Thinnet coaxial).
7. Q: What is Multipath Propagation?
o ANSWER When a signal takes multiple paths to a receiver due to
reflection, causing data corruption or "ghosting."
8. Q: Which device is required to connect a digital network to an analog
phone line?
o ANSWER A Modem (Modulator/Demodulator).
9. Q: What is the purpose of an Amplifier?
o ANSWER To increase the amplitude of a signal to overcome
attenuation.
10.Q: What is Crosstalk?
o ANSWER Interference caused by signals from one wire
"bleeding" into an adjacent wire.
Understanding how data is converted into physical signals is a cornerstone of
this course.
Getty Images
, 1. Q: What is the primary difference between an analog and a digital
signal?
o ANSWER Analog signals are continuous waves; digital signals are
discrete, consisting of binary 1s and 0s.
2. Q: What term describes the loss of signal strength as it travels through a
medium?
o ANSWER Attenuation.
3. Q: Which transmission medium is immune to Electromagnetic
Interference (EMI)?
o ANSWER Fiber Optic Cable (uses light instead of electricity).
4. Q: What does 10BaseT specify in terms of cable and speed?
o ANSWER 10 Mbps over Twisted Pair (UTP) cable.
5. Q: What is the maximum distance for a standard Category 5e/6 Ethernet
cable?
o ANSWER 100 meters.
6. Q: Which cable type uses an RG-58 classification and BNC connectors?
o ANSWER 10Base2 (Thinnet coaxial).
7. Q: What is Multipath Propagation?
o ANSWER When a signal takes multiple paths to a receiver due to
reflection, causing data corruption or "ghosting."
8. Q: Which device is required to connect a digital network to an analog
phone line?
o ANSWER A Modem (Modulator/Demodulator).
9. Q: What is the purpose of an Amplifier?
o ANSWER To increase the amplitude of a signal to overcome
attenuation.
10.Q: What is Crosstalk?
o ANSWER Interference caused by signals from one wire
"bleeding" into an adjacent wire.
