10+ Tech Mahindra Interview Questions and Answers

BHIM is a mobile payment app developed by the National Payments Corporation of India. UPI is a real-time payment system that enables instant fund transfer.

• BHIM stands for Bharat Interface for Money

• BHIM is a digital payment app that allows users to make transactions using their mobile phones

• UPI stands for Unified Payments Interface

• UPI is a payment system that enables users to link multiple bank accounts to a single mobile app

• Both BHIM and UPI are initiatives by the Indian gove...read more

Merchants benefit from using QR codes by enabling easy and convenient payments for customers.

• QR codes allow for contactless payments, reducing the need for physical cash or cards.

• They provide a faster and more efficient checkout process, improving customer satisfaction.

• QR codes can be easily integrated into various marketing strategies, allowing merchants to track and analyze customer behavior.

• They enable targeted promotions and personalized offers, enhancing customer engagem...read more

QR codes in shops provide a convenient way for customers to access product information, make purchases, and receive discounts.

• QR codes allow customers to quickly access product details and reviews by scanning the code with their smartphones.

• They can also be used for contactless payments, allowing customers to make purchases without the need for physical cash or cards.

• QR codes can provide exclusive discounts or promotions to customers who scan them, encouraging repeat business...read more

QR code is a two-dimensional barcode that can be scanned using a smartphone or QR code reader to quickly access information or perform actions.

• QR code stands for Quick Response code.

• It consists of black squares arranged on a white background.

• QR codes can store various types of data such as URLs, text, contact information, etc.

• To work with a QR code, you need a QR code scanner app or a smartphone with built-in QR code scanning functionality.

• Scan the QR code using the scanner a...read more

Yes, I use multiple payment apps for convenience and security.

• I use PayPal for online transactions

• I use Venmo for peer-to-peer payments

• I use Apple Pay for in-store purchases

• I use Google Pay for online and in-store payments

• I also use my bank's mobile app for bill payments and transfers

Design a database schema for a notification service

• Identify the entities involved such as users, notifications, and devices

• Create tables for each entity with relevant attributes

• Establish relationships between tables using foreign keys

• Consider indexing for efficient retrieval of notifications

• Implement a mechanism for tracking read/unread status of notifications

Credit industry involves lending money to individuals or businesses based on their creditworthiness.

• Credit industry includes banks, credit unions, credit card companies, and other financial institutions.

• It involves assessing the creditworthiness of individuals or businesses before lending money.

• Credit scores play a crucial role in determining the interest rates and loan amounts offered to borrowers.

• Credit industry regulations vary by country, with agencies like FICO in the US...read more

To sell a product, understand the customer's needs and show how the product can fulfill them.

• Identify the customer's pain points and how the product can solve them

• Highlight the unique features and benefits of the product

• Create a sense of urgency or scarcity to encourage purchase

• Offer a guarantee or trial period to reduce risk for the customer

• Build rapport and establish trust with the customer

Calculate running total and 2nd highest salary for each department in SQL.

• Use window functions like ROW_NUMBER() and SUM() to calculate running total.

• Use a subquery to find the 2nd highest salary for each department.

Find the next greater element in an array for each element

• Iterate through the array and for each element, find the next greater element

• Use a stack to keep track of elements whose next greater element is not yet found

• If the current element is greater than the top element of the stack, pop the stack and mark the popped element's next greater element as the current element

• Push the current element onto the stack

• If there are no more elements in the array, mark all remaining elemen...read more