30+ Bharti Airtel Interview Questions and Answers

Working code with edge cases is code that has been tested with extreme inputs to ensure it functions correctly.

• Edge cases are inputs that are unlikely to occur but can cause unexpected behavior if not handled properly.

• Examples of edge cases include empty inputs, null values, and inputs at the limits of the data type's range.

• Working code with edge cases should be thoroughly tested to ensure it functions correctly in all scenarios.

Use recursion to print n natural numbers in C++ without semicolon.

• Define a function to print natural numbers recursively.

• Call the function inside main function with n as argument.

• Base case: if n is less than 1, return.

• Print n and call the function with n-1 as argument.

The problem is to color a graph with two colors such that no two connected vertices have the same color.

• Use a graph coloring algorithm such as Depth First Search (DFS) or Breadth First Search (BFS).

• Start with an arbitrary vertex and color it with one color (e.g., blue).

• Color all its adjacent vertices with the other color (e.g., red).

• Continue this process for all connected components of the graph.

• If at any point, you encounter two adjacent vertices with the same color, it is n...read more

Design a scalable and fault-tolerant system for a social media platform

• Use microservices architecture to break down the system into smaller, independent services

• Implement load balancing to distribute traffic evenly across servers

• Utilize caching mechanisms to improve performance and reduce database load

• Implement redundancy and failover mechanisms to ensure high availability

• Use monitoring and alerting tools to detect and respond to issues proactively

Design a calculator app with basic arithmetic operations.

• Include basic arithmetic operations like addition, subtraction, multiplication, and division.

• Design a user-friendly interface with large buttons for numbers and operations.

• Allow users to input numbers using both keypad and touch screen.

• Implement error handling for division by zero and other invalid inputs.

Design a URL shortener system

• Generate a unique short code for each URL

• Store the mapping of short code to original URL in a database

• Redirect users from short URL to original URL

• Consider scalability and performance

• Implement analytics to track usage statistics

To improve sales and marketing, I would focus on creating targeted campaigns and utilizing data analytics to track performance.

• Conduct market research to identify target audience and their needs

• Develop targeted campaigns with clear messaging and call-to-action

• Utilize data analytics to track campaign performance and make adjustments as needed

• Collaborate with sales team to ensure alignment and provide necessary support

• Regularly review and update marketing strategies based on ma...read more

Use SQL query to find the top 2 highest salaries in a table.

• Use the ORDER BY clause to sort the salaries in descending order.

• Use the LIMIT clause to limit the results to 2.

• Example: SELECT salary FROM employees ORDER BY salary DESC LIMIT 2;

To write power base 10 in logical coding, you can simply use the exponentiation operator or function.

• Use the exponentiation operator '**' in Python to calculate power base 10.

• In JavaScript, you can use the Math.pow() function to calculate power base 10.

• In Java, you can use the Math.pow() function as well to calculate power base 10.

Women's education is crucial for the development of society and the empowerment of women.

• Women's education leads to better health outcomes for themselves and their families.

• Educated women are more likely to participate in the workforce and contribute to the economy.

• Education can help women gain the skills and knowledge needed to advocate for their rights and challenge gender inequality.

• Investing in women's education has been shown to have a positive impact on reducing poverty...read more

I approach problem solving by breaking down the issue, analyzing possible solutions, and implementing the best course of action.

• Identify the problem and gather relevant information

• Brainstorm potential solutions

• Evaluate each solution based on feasibility and effectiveness

• Implement the chosen solution and monitor outcomes

• Adjust the approach if needed

Design Walmart search API

• Define search parameters (e.g. product name, category, price range)

• Implement search algorithm (e.g. keyword matching, relevance ranking)

• Integrate with Walmart's product database

• Provide filtering and sorting options

• Ensure scalability and performance

• Include error handling and logging