Five channels, each with a 100-kHz bandwidth, are to be multiplexed together. What is the minimum bandwidth of the link if there is a need for a guard band of 10 kHz between the channels to prevent interference?
(a) 4600 kHz
(b) 500 kHz
(c) 540 kHz
(d) 580 kHz
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Question is from Layers in section Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security