Question

please answer this fast
I will give you 20 points​

Answer 1

public switched telephone Network

digital subscriber line

high speed download link packet Access

worldwide interoperability for microwave Access

Answer 2

hey mate here is ur answer ,

full form are:

1. PSTN : public switched telephone network

2. DSL : digital subscriber line

3. HSDPA : high speed packet access

4. WI MAX : world wide interoperability for microwave access

5. WAP : wireless application protocol

hope it helps u dear :)