Dalmia Bharat Cement Interview Questions and Answers

Algorithm to list Fibonacci series and find median of combined array with and without 3rd array

• For Fibonacci series, start with 0 and 1, then add previous two numbers to get next number

• For finding median of combined array, merge the two arrays and sort them, then find the middle element(s)

• For finding median without 3rd array, use two pointers to traverse both arrays simultaneously and keep track of previous and current elements

A car sharing app that connects car owners with people who need a ride.

• Users can search for available cars in their area and book a ride.

• Car owners can list their car and set their own price for the ride.

• The app should have a rating system for both drivers and passengers.

• Payment should be handled through the app.

• Customer acquisition strategy can include social media advertising, referral programs, and partnerships with local businesses.

Factors to consider while designing a recommendation engine for a news website like MSN.

• Identify user preferences and behavior

• Analyze user history and engagement

• Consider content relevance and recency

• Incorporate social media trends and user feedback

• Use collaborative filtering and machine learning algorithms

• Ensure diversity in recommendations

• Optimize for speed and scalability

The bid for the AdWord should be based on the value of a click and the conversion rate.

• Calculate the value of a click by estimating the revenue generated per click.

• Determine the conversion rate of the website to estimate the number of clicks needed to generate a sale.

• Consider the competition for the keyword and adjust the bid accordingly.

• Use tools like Google Keyword Planner to estimate the bid range for the keyword.

• Regularly monitor and adjust the bid based on performance.

• Ex...read more

Ad fraud and detecting bot fraud mechanisms

• Ad fraud can be carried out through click fraud, impression fraud, and conversion fraud

• Detecting bot fraud can be done through analyzing user behavior, IP addresses, and device information

• Other mechanisms include using machine learning algorithms and third-party verification tools

• Examples of bot fraud detection tools include WhiteOps, DoubleVerify, and Integral Ad Science

The case solution submitted suggested features such as personalized recommendations, social media integration, and a user-friendly interface.

• Personalized recommendations based on user behavior and preferences

• Social media integration for easy sharing and promotion

• User-friendly interface with intuitive navigation and clear calls to action

• Integration with third-party services such as payment gateways and shipping providers

• Robust analytics and reporting tools for tracking perform...read more