Tritech Data Engineer Interview Questions and Answers

Basic OOP questions for python programming language

Q1. What's abstraction
Ans. 
Abstraction is the concept of hiding complex implementation details and showing only the necessary information to the user.
• Abstraction allows users to focus on what an object does instead of how it does it

• It helps in reducing complexity and improving efficiency in software development

• Example: In object-oriented programming, abstract classes and interfaces are used to achieve abstraction
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Q2. What's the difference between SQL and NoSQL database
Ans. 
SQL databases are relational databases with structured data, while NoSQL databases are non-relational databases with flexible, unstructured data.
• SQL databases use structured query language for defining and manipulating data, while NoSQL databases use different query languages or APIs.

• SQL databases are table-based, with a predefined schema, while NoSQL databases are document, key-value, wide-column, or graph-based.

• SQL d...read more
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Q1. Reverse a linked list
Ans. 
Reverse a linked list by changing the direction of pointers
• Start with three pointers: current, prev, and next

• Iterate through the linked list, updating pointers to reverse the direction

• Update the head of the linked list to the last node after reversing
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Q2. Implement binary search algorithm
Ans. 
Binary search algorithm efficiently finds the target value in a sorted array.
• Start by defining the low and high indices of the array.

• Calculate the mid index and compare the target value with the value at mid.

• If target is less than mid value, update high to mid-1; if greater, update low to mid+1.

• Repeat until target is found or low is greater than high.
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Q1. Brief Introduction and basic questions
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Q2. Future plans and how am i going to achieve them
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It was simple apptitude

Q1. Difference between private and protected
Ans. 
Private members are accessible only within the same class, while protected members are accessible within the same class and its subclasses.
• Private members can only be accessed within the same class

• Protected members can be accessed within the same class and its subclasses

• Private members are not inherited by subclasses

• Protected members are inherited by subclasses
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Q2. Why we use nosql database
Ans. 
NoSQL databases are used for scalability, flexibility, and handling unstructured data.
• Scalability: NoSQL databases can easily scale horizontally to handle large amounts of data and high traffic.

• Flexibility: NoSQL databases do not require a predefined schema, allowing for easy modifications and additions to data.

• Handling unstructured data: NoSQL databases are well-suited for storing and querying unstructured data like d...read more
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Q1. General questions
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Q2. About availability
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Q1. Basics of sql and some coding questions
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Q2. Data structures
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Q1. Putin arrays strings
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Q1. Basics of android
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Q2. MVVM, Clean Architecture
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Q3. Jetpack compose
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Q1. Question on resume
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Q2. LLD of sdk which i made in prev company
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Q1. LLD, HLD, Questions on mistake I did in my working career and all
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Q1. Merge sorted arrays
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Q1. Checking cache using python
Ans. 
Use Python's built-in 'functools' module to check cache for function results.
• Import 'functools' module

• Use 'lru_cache' decorator to cache function results

• Specify 'maxsize' parameter to limit cache size

• Use 'cache_info()' method to get cache statistics
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Q1. Multicontainer pod,difference between deployments and replicaset,scenario based questions
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Q1. It was good and easy
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Q1. Its all about package discussion
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Just apptitude questions and simple grammar

Q1. General Introduction And asked about the previous profile Data entry process
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Q2. About yourself Data Entry work
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