ISRO Scientist or Engineer Computer Science Dec 2017

Instructions

For the following questions answer them individually

Question 71

A 32 bit adder is formed by cascading 4 bit CLA adder. The gate delays (latency) for getting the sum bits is

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Question 72

We consider the addition of two 2’s compliment numbers $$b_{n - 1}b_{n - 2}.......b_{0}$$ and $$a_{n - 1}a_{n - 2}.........a_0$$. A binary adder for adding two unsigned binary numbers is used to add two binary numbers. The sum is denoted by $$c_{n - 1}c_{n - 2}.......c_{0}$$ The carry out is denoted by $$c_{out}$$. The overflow condition is identified by

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Question 73

Consider the function
int fun(x: integer)
{
If x > 100 then fun = x - 10;
else
fun = fun(fun(x + 11));
}
For the input x = 95, the function will return

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Question 74

Consider the function
int func(int num) {
int count = 0;
while(num) {
count++;
num >>= 1;
}
return(count) ;
}
For func(435) the value returned is

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Question 75

In IEEE floating point representation, the hexadecimal number 0xC0000000 corresponds to

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Question 76

Which of the following set of components is sufficient to implement any arbitrary Boolean function?

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Question 77

Consider the following :

Matching A, B, C, D in the same order gives.

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Question 78

Consider the results of a medical experiment that aims to predict whether someone is going to develop myopia based on some physical measurements and heredity. In this case, the input data set consists of the person’s medical characteristics and the target variable is binary: 1 for those who are likely to develop myopia and 0 for those who aren’t. This can be best classified as

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Question 79

Which of the following related to snowflake schema is true?

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Question 80

Consider the following C function
#include <stdio.h>
int main(void)
{
char c[ ] = "ICRBCSIT17";
char *p=c;
printf("%s", c+2[p] - 6[p] - 1);
return 0;
}
The output of the program is

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