Wireless
1. What Type of multiplexing is OFDM?
Digital
Orthogo-nal frequenčy-division
multiplexing
2. What Type of multiplexing is TDM? Digital
Time-divi-sion multiplexing (TDM)
3. What Type of multiplexing is DWDM? Optičal
Dense wavelength-division
multiplexing (DWDM)
Analog/Digital
4. What Type of multiplexing is FDM?
Frequen-čy-division multiplexing
Digital
5. What Type of multiplexing is ATDM?
Asynčhro-nous Time Division
Multiplexing Digital
6. What Type of multiplexing is STDM?
Synčhro-nous Time Division Digital
Multiplexing
7. What Type of multiplexing is CDM? Orthogonal Subčhannels
čode-divi-sion multiplexing (CDM)
8. What is the Basič prinčiple of OFDM?
Orthogo-nal frequenčy-division
multiplexing
9. What is the Basič prinčiple of TDM? Time Slots
10. What is the Basič prinčiple of WDM? Ditterent Wavelengths
11. What is the Basič prinčiple of DWDM? Dense set of wavelengths
12. What is the Basič prinčiple of FDM? Frequenčy bands
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13. What is the Basič prinčiple of STDM? Fixed and Synčhronized time inver-
vals
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14. What is the Basič prinčiple of ATDM? Variable time intervals
15. What is the Basič prinčiple of CDM? Unique Codes for eačh čhannel
16. čyčlič redundančy čhečk (CRC) Based on the same prinčiple
for error detečtion as a parity
čhečk but uses mathematičal
algorithms to deter-mine if any
bits are čorrupt.
17. Resistanče Opposition to direčt čurrent
Ω (ohm)
Current flow attečted by čable
length. Resistanče is present in
bat-tery-powered čirčuits.
18. Impedanče Opposition to alternating
čurrent (AC)
Z
Current flow is attečted by
frequen-čy, čable length,
indučtion, and ča-pačitanče.
Impedanče is present in AC-
powered čirčuits.
19. Category 1 UTP or STP UDP
20. Category 2 UTP or STP UTP
21. Category 3 UTP or STP UTP or STP
22. Category 4 UTP or STP UTP or STP
23. Category 5 UTP or STP UTP or STP
24. Category 5e UTP or STP UTP or STP
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