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Question
Identify the disadvantages of bit array.
Options:
A .  Without compression, they might become sparse
B .  Accessing individual bits is expensive
C .  Compressing bit array to byte/word array, the machine also has to support byte/word addressing
D .  All of the mentioned
Answer: Option D


Without compression, they become sparse in both time and space, also if random access is more common than sequential access, then they have to be compressed to byte/word array.



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