the answer should be the letter a
I'm going have to go with with 1.b and 2.d hope this helps and I don't need help right now.
Answer:
CDMA is sa station.
Explanation:
CDMA is basically a Code Division Multiple Access .It is assgned code that facilitates the signals or special coding scheme.It optimizes the use of bandwidth, It is used in a UHF and send data over entire bandwidth of channel.It send data without sharing of capacity of channel. Its ranges is between 800 MHz and 1.9 GHz
The characteristic of the WAN hub and spoke topology is that
it is considered to be a branch site or composed of the branch site in which
they are likely to be connected to a site that is central and that is through
the point to point links.
