Final answer:
Multiplexing is a method used to combine multiple signals into one medium.
It involves various techniques such as Frequency Division Multiplexing (FDM) and Time Division Multiplexing (TDM). Transport layer aggregation is not typically a form of multiplexing.
Therefore, the correct answer is: option b). frequency division packet division time division
Step-by-step explanation:
The question is about different forms of multiplexing, which is a method used in communications to combine multiple signals into one medium.
Here are the forms of multiplexing mentioned:
- Frequency Division Multiplexing (FDM) is a technique where multiple signals are combined for transmission on a single communications medium. Each signal is assigned a unique frequency band within the available range.
- Time Division Multiplexing (TDM) involves dividing the time on a single channel into different slots, where each signal is transmitted within its respective time slot.
- Transport layer aggregation/delivery of data from/to processes is not typically considered a form of multiplexing. Instead, it's related to how data is handled in the OSI model's transport layer, which is responsible for reliable data transfer.
- Packet Division Multiplexing, which might refer to Statistical Multiplexing (STDM), is where each packet of data is given a chance to be transmitted based on certain criteria, such as availability or priority.
The latter two (FDM and TDM) are the established and standard forms of multiplexing used in various network technologies, including the allocation of bandwidth in telecommunications.