10+ Cadmaxx Solutions Interview Questions and Answers

Min's angle from 5 to 5:40 is 120 degrees.

• The minute hand moves 360 degrees in 60 minutes.

• From 5 to 6, the minute hand moves 30 degrees per 5 minutes.

• From 5 to 5:40, the minute hand moves 30 degrees per 8 minutes.

• Therefore, the angle made by the minute hand is 30 degrees x 8 = 240 degrees.

• However, the angle between 5 and 5:40 is only 240 degrees - 120 degrees = 120 degrees.

Security vulnerabilities include SQL injection, cross-site scripting, and insecure direct object references.

• SQL injection: attackers insert malicious SQL code into input fields to access or manipulate database

• Cross-site scripting: attackers inject malicious scripts into web pages viewed by other users

• Insecure direct object references: attackers access unauthorized data by manipulating object references

Different types of pointers include null pointers, void pointers, function pointers, and array pointers.

• Null pointers: pointers that do not point to any memory location.

• Void pointers: pointers that can point to any data type.

• Function pointers: pointers that point to functions.

• Array pointers: pointers that point to the first element of an array.

Object oriented programming is a programming paradigm that uses objects to represent and manipulate data.

• It focuses on encapsulation, inheritance, and polymorphism.

• Encapsulation hides the implementation details of an object from the outside world.

• Inheritance allows a class to inherit properties and methods from another class.

• Polymorphism allows objects of different classes to be treated as if they were of the same class.

• Examples of object oriented programming languages includ...read more

Answering technical interview questions on linked lists and arrays.

• To swap two nodes in a linked list, we need to identify the nodes and swap their pointers.

• To swap two numbers in an array, we can use a temporary variable to store one of the numbers while swapping.

• To count the frequency of elements in an array, we can use a hash table or a dictionary to store the count of each element.

• Example: swapping nodes in a linked list - if we want to swap nodes A and B, we need to iden...read more

Program to find occurrences of each element and sort array in increasing order.

• Use a HashMap to store the count of each element in the array.

• Sort the array based on the occurrences of each element.

• Handle edge cases like empty array or null input.

Iterate through array using pointers

• Declare a pointer variable to point to the first element of the array

• Use a loop to iterate through the array by incrementing the pointer

• Stop the loop when the pointer reaches the end of the array

Pointers are variables that store memory addresses of other variables. They allow direct manipulation of memory.

• Pointers are declared using the * symbol.

• They can be used to pass values by reference.

• Pointers can be used to dynamically allocate memory.

• Example: int *ptr; ptr = # *ptr = 10;

• Example: void swap(int *a, int *b) { int temp = *a; *a = *b; *b = temp; }

Abstraction in OOP is the process of hiding unnecessary details and exposing only essential features of an object.

• Abstraction focuses on what an object does rather than how it does it.

• It allows us to create abstract classes and interfaces that can be used as blueprints for creating objects.

• Abstraction helps in achieving modularity, reusability, and maintainability of code.

• Example: A car can be abstracted as a vehicle with properties like speed, fuel, and methods like start, s...read more

Index in a database is a data structure that improves the speed of data retrieval operations.

• Indexes are used to quickly locate data without having to search every row in a database table.

• They are created on columns in a database table to speed up the query process.

• Examples of indexes include primary keys, unique keys, and composite keys.

Partial view is a reusable view component in ASP.NET MVC which can be rendered within a view.

• Partial views can be used to break down complex views into smaller, manageable components.

• They can be rendered within other views using the @Html.Partial() method.

• Partial views are useful for reusing code and improving maintainability of MVC applications.

Hashing is a process of converting input data into a fixed-size string of bytes using a mathematical algorithm.

• Hashing is used to securely store passwords by converting them into a hash value.

• Hashing is used in data retrieval systems to quickly locate data based on its hash value.

• Common hashing algorithms include MD5, SHA-1, and SHA-256.