GS Lab Interview Questions, Process, and Tips

Q1. Basic about java, oops java 8 spring boot etc
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Q2. DB concepts like joins, view etc.
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Q1. Whai is normalization??
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Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down a database into smaller, more manageable tables.

• Each table should have a primary key and only contain data that is related to that key.

• Normalization helps to prevent data inconsistencies and anomalies.

• There are different levels of normalization, with each level building on t...read more
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Q2. What is oops concepts??
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OOPs concepts are the fundamental principles of Object-Oriented Programming.
• Encapsulation - binding data and functions that manipulate them

• Inheritance - creating new classes from existing ones

• Polymorphism - ability of objects to take on multiple forms

• Abstraction - hiding implementation details and showing only functionality

• Examples: class, object, inheritance, encapsulation, polymorphism, abstraction
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Q3. What are joins in sql databases??
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Joins are used to combine data from two or more tables based on a related column.
• Joins are used to retrieve data from multiple tables in a single query.

• They are performed using the JOIN keyword followed by the name of the table to be joined.

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN.

• Joins are based on a related column between the tables, known as the join condition.

• The result o...read more
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2 coding questions difficult to solve

Q1. Oops, cyclic linklist, deadlock
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Q1. Data structure and algo
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Q1. Basic Oops questions
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Q1. Coding questions - implement find function for a string in c++.
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Implement find function for a string in C++.
• Use the find() function from the string class in C++ to search for a substring within a string.

• The find() function returns the position of the first occurrence of the substring, or string::npos if not found.

• Example: string str = 'hello world'; int pos = str.find('world');
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Q1. Scenario based questions Realtime example of Oops
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Realtime example of OOPs is modeling a car as an object with properties and methods.
• Create a Car class with properties like make, model, year, and methods like start, accelerate, brake.

• Instantiate multiple Car objects with different properties and call their methods.

• Demonstrate inheritance by creating a subclass ElectricCar with additional properties and methods.
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2 coding questions and few MCQs

Q1. Questions around resume and some basic coding questions.
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Q1. 2 coding questions, 1 puzzle and then some chit chat with hiring manager.
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Q1. Basic questions that HR ask.
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Q1. All Python basics questions
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Q2. String list opps
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Q1. Logical question on coding
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Q2. Approach to solve questions
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Q1. Tell me about yourself
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