Q
Integrated Services Digital Network (ISDN) can be classified into ____________ and _________ ISDN.
AA. Wide band, narrow band
BB. Baseband, pass band
CC. Narrow band, broadband
DD. Broadband, baseband
Correct Answer:
C. C. Narrow band, broadband
Explanation:
Narrowband ISDN was implemented to make digital telephone systems more impactful over analog telephone systems. It utilizes narrow band of frequencies. Narrowband is also known as Normal-ISDN. Broadband ISDN on the other hand, is a standard for transmitting voice data on larger frequency bands.
