Question 23 How many sub strings of different lengths (non-zero) can be found formed from a character string of length n? A n B n2 C […]

Question 4  For a Turing machine M, <M> denotes an encoding of M. Consider the following two languages.         L1=〈M〉|M takes more than 2021 steps on all […]

Question 1 Suppose that L1is a regular language and L2is a context free language. Which one of the following languages is NOT necessarily context free? A […]

Which of the following acids can dissolve glass? Correct Answer: D Question 3 Explanation:  Fluoride ion attacks silicon forming a strong bond and weakening the silicon […]