a tec
5. The PSTN is an example of a..
message switched
packet switched
None of these
circuit switched
28m 2s remaining
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Explanation:
కజబఃఓడఃఓటబోఊఓఛనఫచఢకఛంజమఫౌఛడంఠచోఔఢఃఓఃఖొఃబఝాఊఖఃఇఆనఃడడటబబకగటబటబఛఠభఛడంకఢౌఝఢజఝభటబ
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