MNC AUTOMATION Software Developer Interview Questions and Answers

I admire your company's innovative approach and commitment to quality, which aligns with my career goals and values as a developer.

• Your company's focus on cutting-edge technology, like AI and machine learning, excites me as I want to work on impactful projects.

• I appreciate your commitment to professional development, such as mentorship programs, which will help me grow my skills.

• The collaborative culture here fosters c...read more

SQL constraints are rules applied to table columns to enforce data integrity and validity.

• PRIMARY KEY: Uniquely identifies each record in a table. Example: `CREATE TABLE Users (UserID INT PRIMARY KEY);`

• FOREIGN KEY: Ensures referential integrity between two tables. Example: `FOREIGN KEY (UserID) REFERENCES Users(UserID)`.

• UNIQUE: Ensures all values in a column are different. Example: `CREATE TABLE Users (Email VARCHAR(25...read more

Copy constructor is a special type of constructor which creates a new object as a copy of an existing object.

• Copy constructor is used to initialize a new object as a copy of an existing object.

• It takes an object of the same class as a parameter.

• It is called automatically when a new object is created from an existing object.

• Example: class MyClass { public: MyClass(const MyClass& obj) { // copy constructor logic } };

Copy constructor is used to create a new object as a copy of an existing object, while assignment operator is used to assign values from one object to another.

• Copy constructor is called when a new object is created from an existing object, while assignment operator is called when an existing object is assigned values from another object.

• Copy constructor creates a new object with its own memory space, while assignment o...read more

A static function is a function that is associated with a class rather than an instance of the class.

• Static functions can be called without creating an instance of the class.

• Static functions are commonly used for utility functions that do not require access to instance-specific data.

• Static functions are declared using the 'static' keyword in many programming languages.

• Example: 'Math.max()' in JavaScript is a static fun

Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.

• Start with 0 and 1 as the first two numbers in the series

• Add the previous two numbers to get the next number in the series

• Repeat this process to generate the Fibonacci series

Singleton design pattern ensures a class has only one instance and provides a global point of access to it.

• Ensures a class has only one instance

• Provides a global point of access to that instance

• Commonly used in scenarios where only one instance of a class is needed, such as database connections or logging