Mercari Senior Engineer Interview Questions and Answers

Q1. What is actual rule is using to sale more products in this company
Ans. 
The actual rule for selling more products in this company is to focus on customer needs and provide excellent customer service.
• Focus on customer needs and preferences

• Provide excellent customer service

• Offer promotions and discounts

• Maintain high product quality

• Stay up-to-date with market trends

• Build strong relationships with customers

• Encourage customer feedback and use it to improve

• Train sales staff to be knowledgeable a
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Q1. Seleium java sdet qa
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Q2. Qa wuestions for automation
Ans. 
QA automation questions focus on testing processes, tools, and frameworks used in automated testing.
• Explain the difference between unit testing and integration testing

• How do you handle dynamic elements in automated tests?

• Discuss the benefits of using a test automation framework

• What are some common challenges faced in automated testing?

• How do you ensure test coverage in automated testing?
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Q1. What is an API?
Ans. 
An API (Application Programming Interface) is a set of rules and protocols that allows different software applications to communicate with each other.
• APIs define the methods and data formats that applications can use to request and exchange information.

• They allow developers to access the functionality of a software application or service without needing to understand its internal workings.

• Examples of APIs include Googl...read more
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Q2. What is hashmap?
Ans. 
HashMap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• HashMap is part of the Java Collections framework.

• It uses hashing to store key-value pairs in an array.

• It allows for quick retrieval of values based on keys.

• Example: HashMap map = new HashMap<>();
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Python Data Structure

Basic Maths Verbal Data Interpretation

Extenpore random topics

It included English grammar and general aptitude topics such as seating arrangements and number series.

Stack, Linked list, Algorithms, Hashmap , Search

Q1. Find all possible permutations of a string
Ans. 
Permutations of a string are all possible rearrangements of its characters.
• Use recursion to generate all possible permutations

• Swap characters at each position to generate different permutations

• Store each permutation in an array of strings
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Hard to learn what they wanted

Q1. What is your greatest weakness
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Q2. How will you add value to our team
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Q1. Algorithm to solve a given problem
Ans. 
Use a sorting algorithm like quicksort or mergesort to solve the given problem efficiently.
• Choose the appropriate sorting algorithm based on the size of the input data and the constraints of the problem.

• Implement the chosen algorithm in a way that optimizes time and space complexity.

• Test the algorithm with different input sizes and edge cases to ensure its correctness and efficiency.
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