March 27, 2024
Question 9 If A and B are independent events then A P(A∪B) = P(A) + P(B) + (A∩B) B P(A∪B) = 0 C P(A∪B) = P(A) […]
March 27, 2024
Question 368 Let the functional dependencies, (A → B, B → C) hold for relation P(A,B,C). If it is decomposed in R(A,B) and S(B,C), then the […]
March 27, 2024
Question 367 To find the second highest salary from Employees table, which of the following query is true? A Select max (salary) from employees where salary […]
March 27, 2024
Question 378 Consider following three statements about Data Encryption Standard (DES). (I) DES uses a 56 bit key to encrypt 64 bit data blocks. (II) DES […]
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