CREDITSAFE TECHNOLOGY Data Engineer Interview Questions and Answers

Q1. Tell me about yourself
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Q1. 1 Project Explanation 2 SDLC & STLC. 3 Differentiate Smoke vs Sanity 4 What is Regression testing? 5 Bug life cycle. 6 Scenarios on real time example. 7 Questions on agile
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Interview questions for Software Engineer position
• Project explanation should include details on the project's purpose, scope, and technologies used

• SDLC (Software Development Life Cycle) and STLC (Software Testing Life Cycle) are methodologies used in software development and testing respectively

• Smoke testing is a type of testing that checks if the basic functionalities of the software are working fine, while Sanity tes...read more
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Q1. All basic HR questions and salary discussion.
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Q1. Completely on java
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Q1. Asked java questiona
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Q1. "how do you handle missing or corrupted data in a dataset?"
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I handle missing or corrupted data by identifying, analyzing, and applying appropriate techniques to ensure data integrity.
• Identify missing data using methods like 'isnull()' in Python's pandas library.

• Analyze the extent of missing data to determine if it's significant enough to impact results.

• Use imputation techniques, such as replacing missing values with the mean or median, to maintain dataset size.

• Consider removing...read more
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Q2. "can you explain the difference between inner join, left join, Right join, and full join in SQL?"
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Q1. "How do you handle missing or inconsistent data in a dataset?"
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Q2. "can you explain a project where your analysis directly influenced a business decision?"
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Analyzed customer feedback data to improve product features, leading to a 20% increase in customer satisfaction and sales.
• Conducted a sentiment analysis on customer reviews to identify common pain points.

• Presented findings to the product team, highlighting the need for improved user interface.

• Collaborated with marketing to adjust messaging based on customer preferences.

• Tracked sales data post-implementation, showing a ...read more
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Basic java questions along with aptitude questions.

Q1. Basic oops concept, java functionalities, spring framework.
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Q1. Basic Hr questions, when you can join, expected ctc...
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The aptitude test was relatively straightforward, consisting of both aptitude and technical questions, with a difficulty level ranging from easy to medium.

Q1. Was asked to write a code on basic DSA concept
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Implementing basic data structures and algorithms (DSA) concepts is essential for software engineering roles.
• Arrays: A collection of elements identified by index. Example: int arr[] = {1, 2, 3};

• Linked Lists: A linear data structure where elements are stored in nodes. Example: Node* head = new Node(1);

• Stacks: A LIFO structure. Example: push() and pop() operations.

• Queues: A FIFO structure. Example: enqueue() and dequeue(...read more
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Q2. Then was asked basic questions on DSA and SQL
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Q1. Question on Java mcq
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Q2. Questions on Oops
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Q1. Questions based on resume
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Q1. Questions on direction, physics
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