BT Group Technical Professional Interview Questions and Answers

Mid level aptitude questions

Easy level coding questions

Q1. Questions from the resume
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Q1. Don't remember the questions but they were fairly easy ones, you can easily crack them
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Q1. Questions on OOPS were asked. Basically the interviewer asked questions on why python is not fully object oriented.
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Q2. He asked me to explain about hadoop.
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Q3. Basic questions regarding HTML and CSS.
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Q4. Generic Questions like twitter subscription model, awareness regarding ISRO's recent satellite launches etc.
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Normal aptittude test consists for 5 sections

Q1. Subject related questions like basic java and dsa stuff
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Q2. What is java, oops, dsa, etc
Ans. 
Java is a popular programming language, OOPs stands for Object-Oriented Programming, DSA refers to Data Structures and Algorithms.
• Java is a high-level, class-based, object-oriented programming language known for its portability and versatility.

• OOPs is a programming paradigm based on the concept of 'objects', which can contain data in the form of fields and code in the form of procedures.

• DSA involves the study of data s...read more
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Q3. What is polymorphism
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Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance in object-oriented programming languages like Java allows for polymorphism.
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Q4. What are abstract classes
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Abstract classes are classes that cannot be instantiated and are meant to be subclassed.
• Abstract classes may contain abstract methods that must be implemented by subclasses.

• Abstract classes can have both abstract and concrete methods.

• An example of an abstract class in Java is 'Shape', with abstract methods like 'calculateArea' and concrete methods like 'draw'.
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Q5. What is an interface
Ans. 
An interface is a point of interaction between components, devices, or systems.
• An interface defines the methods that a class must implement

• Interfaces allow for multiple inheritance in programming languages like Java

• Interfaces are used to enforce a contract between different parts of a system
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Q1. What is dbms , what is sql
Ans. 
DBMS stands for Database Management System, which is a software system that allows users to define, create, maintain and control access to databases. SQL stands for Structured Query Language, which is a standard language for accessing and manipulating databases.
• DBMS is a software system that allows users to define, create, maintain and control access to databases

• SQL is a standard language for accessing and manipulating...read more
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Q1. Hobbies, what is your ctc required
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90 minutes aptitude round ( pseudo code quant communication )

Q1. Tell me about yourself Core Subjects Questions - CN & OS Languages you know
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Q1. Tell me about yourself Strength Weakness What if your colleague refuses to work New technologies you have worked on.
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