Media Access Control and Australian Academic and Research Network

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Student’s name
Instructor’ name
Course Title
1 st June 2019

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Q.1
a. Media access control is a sub-layer of the DLL(data link layer ) in the OSI model that transmits
data packets to and from the wireless network card to the hardware like wires and other remote
channels. (Mark Dye, 2007)
The main function of the MAC is the provision of addresses and enhance channel accessibility so
that nodes available on a given network can communicate with nodes in other networks. The MAC
is important as the IP address they work to identify adapter on a given network that’s why they are
regarded as the physical address. (Kaveh Pahlavan, 2009)
b. A control access method, stations seek authorization to send , no station can send data without
authorization with other stations after consultation from each to know which station has the right to
send data at a particular moment. example is a token ring and Fibre distributed data interface(FDDI).
Contention media methods access methods here any computer has the right to transmit data and it
uses a medium to broadcast data at any particular time using the policy of first come first to be
served. Examples are Carrier Sense Multiple Access (CSMA).
c . Because it can control the flow of data packets, it has control codes that control the transmission
of data and data can be accessed using different methods and keys. and can do data recovery in case
of error during input or output of data. (Rashid Abdelhaleem Saeed, 2016)
d. The contention media outshines the controlled media access under high traffic, The controlled
access tend to work with traffic is high hence more collisions happen during this times making it
slow and more errors arise.
Q 2.

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a.
The calculation of the composite signal in progress.

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The calculation of the composite signal in progress