WGUl D413l Pre-l Assessmentl Latestl

WGUl D413l Pre-l Assessmentl ( l 2026/l 2027l Update)l Telecommunicationsl andl Wirelessl Communicationsl Guide l l l Questionsl &l Answersl l Gradel A

Q:l Analogl multiplexingl techniquel dividingl bandwidthl intol frequencyl bands.

Answer:

FDMl (Frequencyl Divisionl Multiplexing)

Q:l Digitall multiplexingl techniquel allocatingl timel slotsl forl eachl channel.

Answer:

TDMl (Timel Divisionl Multiplexing)

Q:l TDMl withl fixedl timel slotsl synchronizedl tol al clock.

Answer:

STDMl (Synchronousl TDM)

Q:l TDMl withl flexiblel timel slotsl forl varyingl datal rates.

Answer:

ATDMl (Asynchronousl TDM)

Q:l Opticall multiplexingl usingl differentl lightl wavelengthsl forl channels.

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Answer:

WDMl (Wavelengthl Divisionl Multiplexing)

Q:l Enhancedl WDMl thatl packsl channelsl morel closelyl forl higherl capacity.

Answer:

DWDMl (Densel WDM)

Q:l Digitall multiplexingl techniquel thatl spreadsl signalsl usingl uniquel codes.

Answer:

CDMl (Codel Divisionl Multiplexing)

Q:l OSIl Modell standard

Answer:

ISO/IECl 7498-1

Q:l Standardl forl genericl cablingl forl premises

Answer:

ISO/IECl 11801

Q:l Ethernetl Standardsl includingl 802.3

Answer:

ISO/IECl 8802

Q:l ISMSl standardsl forl securityl controls.

Answer:

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