CBSE UGC NET Computer Science Paper III Solved November 2017 - Part 8

71.       Consider a single perceptron with sign activation function. The perceptron is represented by weight vector [0.4 −0.3 0.1]^t and a bias θ=0. If the input vector to the perceptron is X=[0.2 0.6 0.5] then the output of the perceptron is :

(1) 1

(2) 0

(3) −0.05

(4) −1

Answer: 4

72.       The Sigmoid activation function f(t) is defined as :

Answer: 4

73.       Consider the following statements :

(a) UNIX provides three types of permissions

* Read

* Write

* Execute

(b) UNIX provides three sets of permissions

* permission for owner

* permission for group

* permission for others

Which of the above statement/s is/are true?

(1) Only (a)

(2) Only (b)

(3) Both (a) and (b)

(4) Neither (a) nor (b)

Answer: 3

74.       Which of the following routing technique / techniques is / are used in distributed systems?

(a) Fixed Routing

(b) Virtual Routing

(c) Dynamic Routing

Code :

(1) (a) only

(2) (a) and (b) only

(3) (c) only

(4) All (a), (b), (c)

Answer: 4

75.       Match the following WINDOWS system calls and UNIX system calls with reference to process control and File manipulation.

Windows

(a) Create - process ()

(b) WaitForSingleObject ()

(c) CreateFile ()

(d) CloseHandle ()

UNIX

(i) Open ()

(ii) Close ()

(iii) Fork ()

(iv) Wait ()

Code :

      (a) (b) (c) (d)

(1) (iii) (iv) (i) (ii)

(2) (iv) (iii) (i) (ii)

(3) (iv) (iii) (ii) (i)

(4) (iii) (iv) (ii) (i)

Answer: 1