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There is 126 bit strings.A bit array is an array data structure that stores bits compactly. You can use this to implement a simple set data structure. Bit arrays are effective in taking advantage of bit-level parallelism in hardware to perform operations quickly. ABit sequence is a sequence of bits. Bit strings can be used to represent quantities and manipulate binary data. Bit string elements are numbered from right to left from 0 to the number of bits in the string minus 1 (the rightmost bit is 0).Learn more about bit strings here:- https://brainly.com/question/18565595#SPJ4