GATE CBSE NET COMPUTER SCIENCE MOCK TEST 5


1. The number of integers between 1 and 250 that are divisible by 2, 5 and 7 is

 
 
 
 

2. The minimum number of edges in a connected graph with ‘n’ vertices is equal to

 
 
 
 

3. Consider the problem of connecting 19 lamps to a single electric outlet by using extension cords each of which has four outlets. The number of extension cords required is

 
 
 
 

4. Encoding of data bits 0011 into 7-bit even Parity Hamming Code is

 
 
 
 

5. How many of the following declarations are correct ?

int z = 7.0;

double void = 0.000;

short array [2] = {0, 1, 2};

char c = “\n”;

 
 
 
 

6. Which one of the following will set the value of y to 5 if x has the value 3, but not otherwise ?

 
 
 
 

7. Which of the following can be the sequence of nodes examined in binary search tree while searching for key 88 ?

 
 
 
 

8. A hierarchical memory system that uses cache memory has cache access time of 50 nano seconds, main memory access time of 300 nano seconds, 75% of memory requests are for read, hit ratio of 0.8 for read access and the write-through scheme is used. What will be the average access time of the system both for read and write requests ?

 
 
 
 

9. In a dot matrix printer the time to print a character is 6 m.sec., time to space in between characters is 2 m.sec., and the number of characters in a line are 200. The printing speed of the dot matrix printer in characters per second and the time to print a character line are given by which of the following options ?

 
 
 
 

10. A technique used to approximate halftones without reducing spatial resolution is known as ……………..

 
 
 
 

11. The technique of temporarily delaying outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is known as

 
 
 
 

12. The aspect ratio of an image is defined as

 
 
 
 

13. Using RSA algorithm, what is the value of cipher text C, if the plain text M=5 and p=3, q=11 & d=7 ?

 
 
 
 

14. Consider a fuzzy set A defined on the interval X=[0,10] of integers by the membership Junction

µA(x)=x/(x+2)

Then the α cut corresponding to α=0.5 will be

 
 
 
 

15. What is Granularity ?