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Hardware And Software Design Interview Questions

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Testing is used for estimate the quality of the product. Unit Testing is tested for each part of the product. Integrate the unit and tested. 

waterfall model is the linear model. The process is done by step by step. We couldn't stop in between of the process. prototype model: after get the model by low cost budget only we are implementing that product. so, its efficient. 

In C++

Constructor:This is a member of class which involkes when the object is created.Purpose of constructor is to intialise the objects with required values.

Destructor: It is a member of class which involkes when the object is out of scope.The purpose of destructor is to clear the heap memory. 

#include 

int fact (int x);

void main() {

      int n, a;

      cout<<"enter any value";

      cin>>n;

      a=fact(n);

      cout<< a;

      getch();

}

int fact (int x) {

       if((x==0) || (x==1))

            return 1;

       else

            return(x*(x-1));

} 

Binary Search: Search a sorted array by repeatedly dividing the search interval in half. Begin with an interval covering the whole array. If the value of the search key is less than the item in the middle of the interval, narrow the interval to the lower half. Otherwise narrow it to the upper half. Repeatedly check until the value is found or the interval is empty.

Hashing provides a fast way to search a large, unsorted data set at the cost of extra memory. It is described as "directly referencing records in a table by doing arithmetic transformations on keys into table addresses." 

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