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NIELIT STQC 2021: Quiz-2

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Question 1

A machine produces 0, 1 or 2 defective pieces in a day with associated probability of 1/6, 2/3 and 1/6, respectively. The mean value and the variance of the number of defective pieces produced by the machine in a day, respectively, are

Question 2

Let probabilities of solving a problem by students x,y,z are 1/3,1/4,1/5 respectively. What is the probability that problem is solved by exactly one student?

Question 3

If x is the mean of data 3, x, 2 and 4, then the mode is _________

Question 4

If there are 6 similar statistics books and 5 similar science book, in how many ways can they be arranged alternately on the shelf?

Question 5

Which of the following sorting algorithms does not have a worst-case running time of O(n2)?

Question 6

Match with the suitable one:

List-I

A) Multicast group membership

B) Interior gateway protocol

C) Exterior gateway protocol

D) RIP

List-II

1. Distance vector routing

2. IGMP

3. OSPF

4. BGP

Question 7

Which of the following can be used during DMA transfer by Central Processing Unit?

Question 8

The associativity of which of the following operators is Left to Right, in C++ ?

Question 9

Which of the following is not valid Boolean algebra rule?

Question 10

The phase of the SDLC in which an information system is systematically repaired and improved is referred to as_
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Jun 16GATE & PSU CS