What is 2’s complement of (101)​ 3​ ? Correct Answer: C Question 47 Explanation:  Given base is r=3. So, 2’s complement is diminished radix complement or […]

Question 6 Which of the following logic expressions is incorrect? A 1 ⊕ 0 = 1 B 1 ⊕ 1 ⊕ 1 = 1 C 1 […]

Question 32 The relational algebra expression equivalent to the following tuple calculus expression: {t| t ∈ r ∧(t[A] = 10 ∧ t[B] = 20)} is A […]

Question 5 The following relation records the age of 500 employees of a company, where empNo (indicating the employee number) is the key: empAge (empNo, age) […]