Citicorp Senior Technology Lead Interview Questions and Answers

A NULL pointer is a pointer that does not point to any memory location.

• It is represented by the value 0 or NULL.

• Dereferencing a NULL pointer results in a segmentation fault.

• It is commonly used to indicate the end of a linked list or array.

A dangling pointer is a pointer that points to a memory location that has been deallocated or freed. Dereferencing it can cause a program to crash.

• Dangling pointers occur when memory is freed or deallocated, but the pointer still points to that memory location.

• Dereferencing a dangling pointer can cause a segmentation fault or access violation.

• Dangling pointers can be avoided by setting the pointer to NULL after freeing

A V-table is a virtual table used in programming languages to implement polymorphism.

• It is used in object-oriented programming languages like C++ and Java.

• It contains pointers to functions that can be overridden by derived classes.

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

• It is used to implement dynamic binding or late binding.

• It is also known as a virtual function table or d

Polymorphism is the ability of an object to take on many forms.

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

• It is achieved through method overriding and method overloading.

• Examples include method overriding in inheritance and implementing interfaces in Java.

• Polymorphism helps in achieving loose coupling and flexibility in code design.

Templates are pre-designed documents or files that serve as a starting point for creating new documents or files.

• Templates can be used for various purposes such as creating resumes, business cards, invoices, and presentations.

• They save time and effort by providing a pre-designed layout and structure.

• Templates can be customized to fit specific needs and preferences.

• They are commonly used in software applications like Mi...read more

A virtual function is a function in a base class that is overridden in a derived class.

• Virtual functions allow polymorphism in C++

• They are declared using the virtual keyword

• The function is resolved at runtime based on the object type

• Virtual functions can be pure virtual, meaning they have no implementation in the base class

• Example: virtual void print() = 0; // pure virtual function

Runtime polymorphism is implemented through virtual functions and dynamic binding.

• Virtual functions are declared in base class and overridden in derived class

• Dynamic binding is used to determine which function to call at runtime

• Compiler uses virtual function table to understand runtime polymorphism

Function overloading is having multiple functions with the same name but different parameters. Function overriding is having a derived class implement a method with the same name and parameters as a method in the base class.

• Function overloading is a compile-time polymorphism concept.

• Function overriding is a run-time polymorphism concept.

• Function overloading is used to provide different ways of calling the same function...read more

Function overloading allows multiple functions with the same name but different parameters.

• Functions with the same name but different parameters can be defined in the same scope

• The compiler determines which function to call based on the number and types of arguments passed

• Overloading can improve code readability and reduce the need for multiple function names

• Example: void print(int x), void print(float x), void print(c...read more

I am a Business Technology Analyst with experience in analyzing data and developing solutions to improve business processes.

• Experienced in data analysis and solution development

• Skilled in identifying business process improvements

• Proficient in using technology to drive business growth

Equity refers to ownership in a company, while derivatives are financial contracts based on the value of an underlying asset.

• Equity represents ownership in a company and can be in the form of stocks or shares.

• Derivatives are financial contracts that derive their value from an underlying asset such as stocks, bonds, or commodities.

• Examples of derivatives include futures, options, and swaps.

• Derivatives are often used for...read more

I am a highly analytical and tech-savvy individual with a passion for problem-solving and a track record of delivering results.

• I have a strong background in technology and business analysis, which allows me to bridge the gap between IT and business stakeholders.

• I am a quick learner and can adapt to new technologies and processes easily.

• I am a team player and can work collaboratively with cross-functional teams to achie...read more

The desire to learn and grow every day.

• I am driven by the opportunity to learn new things and expand my knowledge.

• I am motivated by the chance to make a positive impact on the world through my work.

• I am inspired by the people around me who are passionate about what they do.

• I am energized by the challenge of solving complex problems and finding innovative solutions.

• I am excited by the prospect of personal and profession...read more

My favourite book is 'The Alchemist' by Paulo Coelho.

• I love the book's message about following your dreams and finding your purpose in life.

• The story is beautifully written and has a lot of depth and meaning.

• It's a book that I can read over and over again and still find something new to take away from it.

• The characters are relatable and the plot is engaging.

• The book has inspired me to pursue my own passions and take ri

Managers may face various scenarios in their work. Here are some pointers to handle them.

• Identify the problem and its root cause

• Develop a plan of action

• Communicate effectively with team members

• Delegate tasks appropriately

• Monitor progress and adjust plan as needed

• Provide feedback and recognition

• Handle conflicts and difficult conversations

• Stay organized and prioritize tasks

In conflicting scenarios where a manager does not listen or subordinates disagree, I have experience in finding common ground and communicating effectively.

• I have experience in active listening and finding common ground to resolve conflicts

• I am skilled in effective communication and can articulate my perspective clearly

• I am open to feedback and willing to consider alternative viewpoints

• I have successfully navigated sim...read more

I would prefer a job that challenges me and allows me to learn new skills.

• I value opportunities for growth and development

• I am open to new experiences and challenges

• I want to work in an environment that encourages learning

• Examples: a job that involves working with new technologies or a job that requires problem-solving skills