Member Technical Staff 2 Interview Questions and Answers

A page fault occurs when a requested page is not found in the main memory. Segmentation is a memory management technique.

• Page fault: Occurs when a requested page is not present in the main memory

• Segmentation: Memory management technique that divides the memory into segments

• Examples: Page fault occurs when accessing data from virtual memory, while segmentation allows different segments for code, data, and stack

Implementing binary search in a generic function for various data types like integers, strings, and floats.

• Use a generic function with type parameters to handle different data types.

• Implement the binary search algorithm using recursion or iteration.

• Ensure the data structure is sorted before applying binary search.

• Example: For integers, search in an array of integers; for strings, search in an array of strings.

A min heap can be implemented using a priority queue, where the smallest element has the highest priority.

• Use a priority queue data structure to implement the min heap.

• Ensure that the smallest element has the highest priority.

• Implement the necessary operations like insert, delete, and extract min.

• Maintain the heap property by percolating up or down as needed.

Overloading the '+' operator allows custom behavior, such as implementing bitwise XOR in a class.

• Define a class, e.g., 'BitwiseXOR'.

• Implement the '+' operator using the __add__ method.

• Inside __add__, perform bitwise XOR on the class attributes.

• Return a new instance of the class with the XOR result.

Pass by reference and pass by value are two ways to pass arguments to functions, affecting how data is manipulated.

• Pass by Value: A copy of the variable is passed. Changes do not affect the original variable. Example: int a = 5; func(a);

• Pass by Reference: A reference to the original variable is passed. Changes affect the original variable. Example: int& b = a; func(b);

• Pass by Value Result: A copy is made, but the result is returned by reference. Useful for performance in larg...read more

A friend function in C++ allows access to private and protected members of a class.

• Friend functions are not members of the class but can access its private and protected members.

• They are declared using the 'friend' keyword inside the class definition.

• Friend functions can be useful for operator overloading and for functions that need access to multiple classes.

• Example: A function that adds two objects of a class can be a friend function.

The Towers of Hanoi problem involves moving a stack of disks from one peg to another, following specific rules.

• The problem consists of three pegs and a number of disks of different sizes.

• The disks are initially stacked in decreasing order of size on one peg.

• The goal is to move the entire stack to another peg, following these rules:

• 1. Only one disk can be moved at a time.

• 2. Each move consists of taking the top disk from one of the stacks and placing it on top of another stack....read more