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Which technique can solve the errors in the linear buffer?

(a) low water mark

(b) high water mark

(c) low and high water mark

(d) pointer

This question was addressed to me in an interview.

This interesting question is from Types of Buffers in portion Buffering and other Data Structures of Embedded Systems

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Right answer is (c) low and high water mark

Explanation: The errors in the linear buffering include the loss of data especially during the regular sampling which can be avoided by the pointers that are checked against certain values and this result is used for fetching more data. These points are known as the low water mark and the high water mark.

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