R.R. Donnelley Subject Matter Expert(Sme) Interview Questions and Answers

Online test with two section one is general aptituide and Basic cs concepts. And Second round containing the 2 dsa question with intermediate level question.

Q1. Two sorted array in asscending order give the media of two array after merging in asscending order.
Ans. 
The median of two sorted arrays merged in ascending order.
• Merge the two sorted arrays into a single sorted array.

• Find the median of the merged array.

• If the merged array has an odd length, the median is the middle element.

• If the merged array has an even length, the median is the average of the two middle elements.
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Q2. Question on resume on java script 1. whats is closure? 2. what is hoisting? cookie session.
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Q1. Data structure and algorithm problems
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Q1. Basic about Javascript,HTML,CSS
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Q1. Design a weather app
Ans. 
A weather app that provides accurate and up-to-date weather information.
• Include real-time weather updates

• Provide hourly and daily forecasts

• Include radar and satellite maps

• Allow users to set location and receive alerts for severe weather

• Include a widget for quick access to weather information
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Q1. Introduce yourself
Ans. 
I am a software engineer with 5 years of experience in developing web applications using Java, Spring Boot, and Angular.
• 5 years of experience in software development

• Proficient in Java, Spring Boot, and Angular

• Strong problem-solving skills
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Q2. DS/Ago problem - dynamic programming
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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. What is rank in sql .. kind of scenario based
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Q2. Examples of with/ sub query in sql
Ans. 
Using subqueries in SQL allows for more complex queries by nesting queries within other queries.
• Subquery in SELECT statement: SELECT column_name FROM table_name WHERE column_name = (SELECT column_name FROM table_name)

• Subquery in WHERE clause: SELECT column_name FROM table_name WHERE column_name IN (SELECT column_name FROM table_name)

• Subquery in FROM clause: SELECT column_name FROM (SELECT column_name FROM table_name) A
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Q1. Tell about work experience
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Q2. Details about skill set
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MCQs on hdfs, sql and spark. One data structures coding test

Q1. Kafka architecture
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Q2. HDFS namenode features
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Q1. Question based on your experience. Mine was mostly design questions on AWS and how to use try and catch
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Q2. Javascript using async/await with try catch block
Ans. 
Using async/await with try catch block in Javascript
• Use async keyword before the function declaration to make it asynchronous

• Use await keyword before the function call to wait for the promise to resolve

• Wrap the async/await code in a try catch block to handle errors
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Q1. Technical with design questions on web technology
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