What Type of multiplexing is TDM? Time-division multiplexing (TDM)
ANSWER
Digital
What Type of multiplexing is OFDM?Orthogonal frequency-division multiplexing
ANSWER
Digital
What Type of multiplexing is DWDM? Dense wavelength-division multiplexing (DWDM)
ANSWER
Optical
What Type of multiplexing is FDM?Frequency-division multiplexing
ANSWER
Analog/Digital
What Type of multiplexing is ATDM?Asynchronous Time Division Multiplexing
ANSWER
Digital
What Type of multiplexing is STDM?Synchronous Time Division Multiplexing
ANSWER
Digital
1
,What is the Basic principle of OFDM?Orthogonal frequency-division multiplexing
ANSWER
Orthogonal Subchannels
What is the Basic principle of TDM?
ANSWER
Time Slots
What Type of multiplexing is CDM?code-division multiplexing (CDM)
ANSWER
Digital
What is the Basic principle of WDM?
ANSWER
Different Wavelengths
What is the Basic principle of DWDM?
ANSWER
Dense set of wavelengths
What is the Basic principle of FDM?
ANSWER
Frequency bands
What is the Basic principle of STDM?
ANSWER
2
, Fixed and Synchronized time invervals
What is the Basic principle of ATDM?
ANSWER
Variable time intervals
What is the Basic principle of CDM?
ANSWER
Unique Codes for each channel
Resistance
ANSWER
Opposition to direct current
Ω (ohm)
Current flow affected by cable length. Resistance is present in battery-powered circuits.
cyclic redundancy check (CRC)
ANSWER
Based on the same principle for error detection as a parity check but uses mathematical al-
gorithms to deter-mine if any bits are corrupt.
Impedance
ANSWER
Opposition to alternating current (AC)
Z
Current flow is affected by frequency, cable length, induction, and capacitance. Impedance is
present in AC-powered circuits.
3
ANSWER
Digital
What Type of multiplexing is OFDM?Orthogonal frequency-division multiplexing
ANSWER
Digital
What Type of multiplexing is DWDM? Dense wavelength-division multiplexing (DWDM)
ANSWER
Optical
What Type of multiplexing is FDM?Frequency-division multiplexing
ANSWER
Analog/Digital
What Type of multiplexing is ATDM?Asynchronous Time Division Multiplexing
ANSWER
Digital
What Type of multiplexing is STDM?Synchronous Time Division Multiplexing
ANSWER
Digital
1
,What is the Basic principle of OFDM?Orthogonal frequency-division multiplexing
ANSWER
Orthogonal Subchannels
What is the Basic principle of TDM?
ANSWER
Time Slots
What Type of multiplexing is CDM?code-division multiplexing (CDM)
ANSWER
Digital
What is the Basic principle of WDM?
ANSWER
Different Wavelengths
What is the Basic principle of DWDM?
ANSWER
Dense set of wavelengths
What is the Basic principle of FDM?
ANSWER
Frequency bands
What is the Basic principle of STDM?
ANSWER
2
, Fixed and Synchronized time invervals
What is the Basic principle of ATDM?
ANSWER
Variable time intervals
What is the Basic principle of CDM?
ANSWER
Unique Codes for each channel
Resistance
ANSWER
Opposition to direct current
Ω (ohm)
Current flow affected by cable length. Resistance is present in battery-powered circuits.
cyclic redundancy check (CRC)
ANSWER
Based on the same principle for error detection as a parity check but uses mathematical al-
gorithms to deter-mine if any bits are corrupt.
Impedance
ANSWER
Opposition to alternating current (AC)
Z
Current flow is affected by frequency, cable length, induction, and capacitance. Impedance is
present in AC-powered circuits.
3
