Ezeiatech Systems Data Engineer Interview Questions and Answers

Q1. Where do you live?
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Q2. Family background
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Q3. Introduction
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Easy to medium level questions

Questions on recursion, string, array and patterns

It was normal aptitude test

This was normal DSA questions

Q1. How many years of experience you have
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Q1. What is the technology stack you have worked with?
Ans. 
I have experience with various technology stacks including front-end, back-end, and database technologies.
• Front-end: React.js for building user interfaces and enhancing user experience.

• Back-end: Node.js with Express for server-side development and RESTful APIs.

• Database: MongoDB for NoSQL data storage and PostgreSQL for relational databases.

• DevOps: Docker for containerization and Jenkins for continuous integration and d...read more
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Q2. How do you manage to balance your work and personal life?
Ans. 
I prioritize tasks, set boundaries, and engage in hobbies to maintain a healthy work-life balance.
• Set clear work hours: I start my day at 9 AM and log off by 5 PM to ensure personal time.

• Use a task management tool: I utilize tools like Trello to prioritize tasks and avoid overtime.

• Engage in hobbies: I dedicate weekends to hiking and reading, which helps me recharge.

• Communicate with my team: I discuss workload with my m...read more
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Q3. What is the concept of time complexity, and how is it analyzed?
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Time complexity measures the amount of time an algorithm takes to complete as a function of input size.
• Time complexity is expressed using Big O notation (e.g., O(n), O(log n)).

• It helps in comparing the efficiency of different algorithms.

• For example, a linear search has O(n) time complexity, while binary search has O(log n).

• Analyzing time complexity involves identifying the worst-case, average-case, and best-case scenar...read more
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Q4. Can you explain the concepts of classes and objects in Object-Oriented Programming (OOP)?
Ans. 
Classes are blueprints for creating objects, encapsulating data and behavior in OOP.
• A class defines properties (attributes) and methods (functions) that its objects will have.

• An object is an instance of a class, representing a specific entity with state and behavior.

• Example: A 'Car' class may have attributes like 'color' and 'model', and methods like 'drive()' and 'stop()'.

• Objects can interact with each other through t...read more
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Topics:
Python, Django, MySQL, Automation, Technical questions

Q1. Topics: Python, Django, MySQL, Automation, Technical questions
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Q2. Explain Django Architecture
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Q3. Difference between XML and JSON
Ans. 
XML is a markup language while JSON is a lightweight data interchange format.
• XML uses tags to define elements while JSON uses key-value pairs.

• XML is more verbose and complex than JSON.

• JSON is easier to read and parse than XML.

• XML supports namespaces and validation while JSON does not.

• XML is widely used in web services and document exchange while JSON is preferred for data exchange between applications.
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Program output prediction,Logical

3 programs ,any Language you choose. One SQL and 2 programs