Tazapay Senior DBA and Data Engineer Interview Questions and Answers

You should be familiar with core java features. Collections, converting one collection Array / Vector to other. Removing duplicates. Lambda chaining / Functional programming. Basic SQL - Joins, Aggregates etc.

Q1. Explain Architecture of applications you worked on. Justify use of components. System Design questions.
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Q1. How does reconciliation happens in AEPS
Ans. 
Reconciliation in AEPS involves matching the transactions between the bank and the service provider to ensure accuracy.
• Reconciliation involves comparing the transactions recorded by the bank with those recorded by the service provider.

• Any discrepancies are identified and resolved to ensure accurate financial records.

• Reconciliation helps in detecting errors, fraud, or any other discrepancies in the transactions.

• Examples...read more
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Q2. Tell me about yourself
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1hr aptitude + coding

Q1. Diff between react and jQuery
Ans. 
React is a modern JavaScript library for building user interfaces, while jQuery is a fast and concise JavaScript library for DOM manipulation.
• React is component-based, promoting reusability and modularity.

• React uses a virtual DOM for efficient updates, while jQuery directly manipulates the DOM.

• React is declarative, making it easier to reason about the UI, while jQuery is imperative.

• React is typically used for single-pa...read more
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Q1. Insights about company and candidate
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Q2. If I know Data structures or not?
Ans. 
Yes, I have knowledge of data structures.
• I have experience with common data structures like arrays, linked lists, stacks, queues, trees, and graphs.

• I understand the time and space complexity of different data structures and their operations.

• I have implemented data structures in various programming languages like C++, Java, and Python.

• For example, I have used a hash table to efficiently store and retrieve data in consta
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Q1. Case Study of zomato ?
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Q2. Some basic math questions. Simultaneous equations .
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There were 2 easy question 1 medium
Question were good but have weak test case.

This was project or lld round.
You just be aware of class and other stuff.

Q1. Discussion on project Asked graph coding question in real scenerio. Like asked what algorithm you will use for different real life problems
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Q1. Why engineering and what u know about cred
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Q1. Basics on profile,work experience etc
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Q2. Skills discussion based on role and resume
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DSA in preferred language, Java coding testt