Epsilon Interview Questions, Process, and Tips

Q1. Basic full stack related questions
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Q2. Javascript related questions
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Q1. System design questions
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Q2. Rate limit design
Ans. 
Rate limit design involves setting limits on the number of requests a user can make within a certain time frame to prevent abuse or overload.
• Consider the type of requests being made and the impact of rate limiting on user experience.

• Implement rate limiting at different levels such as API endpoints, user accounts, or IP addresses.

• Use tokens or tokens buckets to track and enforce rate limits.

• Provide clear error messages ...read more
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Q1. Salary and benefits discussion
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On mettle platform was easy

Q1. Tell me about urself, what interests you?
Ans. 
I am a passionate Senior SDET Engineer with a strong interest in automation, quality assurance, and continuous improvement.
• Experienced in designing and implementing automated testing frameworks

• Skilled in identifying and resolving software defects

• Passionate about staying up-to-date with the latest technologies and tools in the QA field
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Q2. Explain all projects in resume
Ans. 
I have worked on various projects including test automation, performance testing, and CI/CD implementation.
• Test automation project using Selenium and Java to automate regression tests for web applications

• Performance testing project using JMeter to simulate load on a web application and identify bottlenecks

• CI/CD implementation project using Jenkins to automate build, test, and deployment processes
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Q1. Where do see yourself in 5 years?
Ans. 
In 5 years, I see myself as a senior business analyst leading a team and contributing to strategic decision-making.
• Leading a team of analysts

• Contributing to strategic decision-making

• Continuing professional development and certifications

• Possibly pursuing a management role

• Enhancing industry knowledge and expertise
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Q2. Why Epsilon? And why are you leaving your current organisation?
Ans. 
I am interested in Epsilon's innovative approach to data analytics and leaving my current organization for career growth opportunities.
• Epsilon's reputation for cutting-edge data analytics solutions

• Opportunity for career growth and development at Epsilon

• Excited about working with a new team and learning new skills
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Q1. Sql basics and its uses
Ans. 
SQL is a programming language used for managing and querying relational databases.
• SQL stands for Structured Query Language

• It is used to retrieve, insert, update, and delete data in databases

• Common SQL commands include SELECT, INSERT, UPDATE, DELETE

• SQL is used in various database management systems like MySQL, Oracle, SQL Server

• Example: SELECT * FROM customers WHERE city = 'New York';
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Q2. Unix all commands
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Q1. Hr asked about salary
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Q2. Manager direct meet
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Q1. Sql and case study questions
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Q2. Joins questions were asked
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Q1. Questions regarding BA documentation and deliverables
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Q2. Questions related to customer retention and loyalty bonuses.
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Q1. They asked me about my roles and responsibilities in my last project
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Q2. Questions related to SQL like removing Duplicate rows from table etc
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Q1. Basic Business analysis questions like how to gather requirements from clients, how do I prioritize the backlog etc
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