NIELIT STQC 2021 Quiz-73

Two cards are drawn from a well shuffled pack of 52 cards one after the other without replacement. Find the probability that one of them is a queen and the other is a king of opposite colour.

A and B are two independent events and given P(B) = 0.4 ; P(A ⋃ B’) = 0.8. Which one of the following is value of P(A ⋂ B)? (B’ is complement of B).

3 persons enter a railway station compartment and there are 5 vacant seats. In how many ways can they take seats?

What is the worst case time complexity of a quick sort algorithm?

Consider the matrices P, Q and R which are 10 x 20, 20 x 30 and 30 x 40 matrices respectively. What is the minimum number of multiplications required to multiply the three matrices?

Arrange the following configurations for CPU in decreasing order of operating speeds.

1) Hard wired control

2) Vertical microprogramming

3) Horizontal microprogramming

If the value of X + Y = 1, then the value of  is equal to

In the instruction DCR and INR, which of the following flag bit is not affected?

A process executes the code

fork();

fork();

fork();

The total number of child processes created is