Which of the following WAN technologies has the lowest bandwidth?

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Multiple Choice

Which of the following WAN technologies has the lowest bandwidth?

Explanation:
Bandwidth is the data rate a WAN link can carry. Among these options, the 56k line has the smallest bandwidth. It’s a dial-up connection over the traditional phone network that tops out at about 56 kilobits per second. A DS0 carries 64 kilobits per second, so it’s faster than 56k. A T1 line aggregates 24 DS0 channels for about 1.544 megabits per second, which is far higher than either 56k or a single DS0. VDSL can provide tens or even hundreds of megabits per second depending on the line length and service, again much more than the others. So the 56k line is the lowest-bandwidth option here.

Bandwidth is the data rate a WAN link can carry. Among these options, the 56k line has the smallest bandwidth. It’s a dial-up connection over the traditional phone network that tops out at about 56 kilobits per second. A DS0 carries 64 kilobits per second, so it’s faster than 56k. A T1 line aggregates 24 DS0 channels for about 1.544 megabits per second, which is far higher than either 56k or a single DS0. VDSL can provide tens or even hundreds of megabits per second depending on the line length and service, again much more than the others. So the 56k line is the lowest-bandwidth option here.

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