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NIELIT STQC 2021 Quiz-10

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Question 1

Table below shows the variable x and its probability mass function p(x) value for different ‘x’. What is the mean of x ?

Question 2

If 20% of the nuts manufactured in a plant are found to be not acceptable as per QC norms, calculate the probability that out of the 4 nuts selected at random, less than 2 will be defective.

Question 3

If A = {1, 2, 4}, B = {2, 4, 5}, C = {2, 5}, then (A -B) Ս (B - C) is?

Question 4

The minimum number of colours that is sufficient to vertex-colour any planar graph is _______________

Question 5

Which of the following sorting algorithm does not use recursion?

Question 6

A system contains three programs and each requires three tape units for its operation. The minimum number of tape units which the system must have such that deadlocks never arise is _________.

Question 7

Consider the following snapshot of a given system :

If the available is (3, 3, 2) which of the following order of execution of the processes ensures safety in the system?

Question 8

Which of the following is True about Spanning Tree?

(i) A spanning tree is a connected graph.

(ii) Number of edges in a spanning tree with n-vertices is n – 1.

(iii) Spanning tree contains cycles.

Question 9

________ is the time it takes to run and repair after the occurrence of the failure

Question 10

Authentication is ______?
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Sep 23GATE & PSU CS