PSC Vocational Teacher in Computer Science Model Questions and Answers: Here are the model questions and answers for Vocational Teacher in Computer Science PSC examination. These are the previous asked questions for the PSC Vocational Teacher in Computer Science Examination.
PSC Vocational Teacher in Computer Science Model Questions and Answers
1
gcd(272, 1479) is ............
Answer
A. 17
2
The solution to the system of linear congruence.
7x+3y≡10(mod 16) and
2x+5y≡9(mod 16) is:
7x+3y≡10(mod 16) and
2x+5y≡9(mod 16) is:
Answer
B. x≡3(mod 16) and y≡7(mod 16)
3
Which one of the following field is a finite field?
Answer
B. Z13
4
Which one of the following is not a Carmichael number?
Answer
D. None of the above
5
If there are m people in a group who need to communicate with each other, how many keys are needed for symmetric key cryptography?
Answer
D. (m*(m-1))/2
6
Brute force attack is also known as ................ attack.
Answer
D. exhaustive key search
7
Combination traditional additive and multiplicative cipher is:
Answer
A. Affine
8
Find the result of 710 mod 11 using Fermat’s little theorem:
Answer
B. 1
9
For the one way function Y=f(x), X=f-1(Y) is:
Answer
B. Infeasible
10
In an RSA algorithm if p=7, q=11, then Φ(n) equal to ..............
Answer
D. none of these
11
In an L.P.P. a non-negative variable added to the constraint inequality to convert it into equality is known as ................ variable.
Answer
A. slack
12
An L.P.P which feasible solution is having unbounded optimal solution, then its dual is having ................. solution
Answer
C. no feasible
13
To balance an unbounded transportation problem, where total requirement is less than total availability, it is to introduce ...............
Answer
A. A dummy destination
14
The method used for solving an assignment problem is:
Answer
B. Hungarian
15
If the number of arrivals in a queue in time ‘t’ follows Poisson distribution, inter arrival time follows:
Answer
C. Exponential distribution
16
In a Poisson queue with arrival rate λ and service rate μ, the probability that the queuelength exceeds n is:
Answer
A. (λ/μ)n
17
A game with game matrix [aij] is said to be fair, if:
Answer
C. Maxi Minj aij=Minj Maxi aij
18
Obtain the mixed strategy for the game with payoff matrix
Answer
A. (1/4,3/4)
19
In an inventory control model, time between placing an order and its arrival in stock is:
Answer
B. Lead time
20
Customer arrives in a single man service counter according to Poisson process. Average arrival rate is 20 per hour and average service rate is 36 per hour then the average waiting time of a customer in the queue is,
Answer
B. 125 sec
21
In algorithms O(n2) is called:
Answer
C. quadratic
22
Control abstraction is a term related to:
Answer
D. none of these
23
Performance measure of an algorithm is concerned with obtaining the space and ............. requirement.
Answer
B. Time
24
The name backtrack was first coined by:
Answer
A. D.H. Lehmer
25
In a state space tree a node which has been generated and all of whose children have not yet been generated is called:
Answer
C. live node
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