Reserve Bank Information Technology Interview Questions, Process, and Tips

Easy apti questions, verbal, simple maths , technical questions

Q1. Oops concept in java in detail with examples
Ans. 
Oops concepts in Java are fundamental concepts of object-oriented programming like inheritance, polymorphism, encapsulation, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Allows objects to be treated as instances of their parent class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Abstraction: Hiding the implementati...read more
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Q2. Fibonnacci code
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Q3. What is springboot ?
Ans. 
Spring Boot is a framework for building Java-based enterprise applications quickly and with minimal configuration.
• Spring Boot simplifies the process of creating stand-alone, production-grade Spring-based applications.

• It provides a range of features including embedded servers, auto-configuration, and production-ready metrics.

• Spring Boot allows developers to focus on writing business logic rather than configuring the app...read more
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Q1. Abstraction in java
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Abstraction in Java is a concept where we hide the implementation details and only show the necessary features of an object.
• Abstraction allows us to focus on what an object does rather than how it does it.

• In Java, abstraction is achieved through abstract classes and interfaces.

• Abstract classes cannot be instantiated and can have abstract methods that must be implemented by subclasses.

• Interfaces in Java are like abstrac...read more
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Q2. Interface in java
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Interface in Java is a reference type in Java, similar to a class, that can contain only constants, method signatures, default methods, static methods, and nested types.
• Interfaces are used to achieve abstraction and multiple inheritance in Java.

• All methods in an interface are public and abstract by default.

• A class can implement multiple interfaces but can only extend one class.

• Example: interface MyInterface { void myMe...read more
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Q3. Some logical questions
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Q1. DSA basic question
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Q2. Basic HR questions
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Q3. Questions based on situation
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Q1. With ceo intro, project explanation
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Q2. Family background
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We can easily pass the test cases

Q1. OOPS, Exception Handling, Collections, Arrays, Strings
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Q2. What is Interface
Ans. 
Interface in Java is a reference type, similar to a class, that can contain only constants, method signatures, default methods, static methods, and nested types.
• Interfaces are used to define a contract for classes that implement them.

• Classes can implement multiple interfaces in Java.

• Interfaces cannot have instance fields, constructors, or non-static methods.

• Example: interface Shape { void draw(); }

• Example: class Circle...read more
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Q3. What is Abstractin
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Abstraction is a concept in object-oriented programming where only relevant data is shown to the user while hiding unnecessary details.
• Abstraction helps in simplifying complex systems by only showing essential features.

• It allows for creating abstract classes and interfaces in Java.

• Example: In a car, the driver only needs to know how to drive it without understanding the internal workings of the engine.
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Q4. Explain about Exception and Exception handling
Ans. 
Exceptions are unexpected events that disrupt the normal flow of a program. Exception handling is the process of dealing with these events.
• Exceptions are objects that represent an abnormal condition or error in a program.

• Exception handling allows developers to gracefully handle errors and prevent the program from crashing.

• Java provides try-catch blocks for handling exceptions. The try block contains the code that may t...read more
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Q5. Explain Arrays and Strinds
Ans. 
Arrays are a collection of elements of the same data type, while Strings are a sequence of characters.
• Arrays can store multiple values of the same data type, accessed by index.

• Strings are immutable sequences of characters, can be manipulated using various methods.

• Example: int[] numbers = {1, 2, 3}; String name = "John";
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Q1. What do u mean by data
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Data refers to facts, statistics, or information collected for analysis or reference.
• Data is raw, unprocessed information.

• It can be in the form of numbers, text, images, or any other format.

• Examples include customer names, product prices, and sales figures.

• Data can be structured (organized in a specific way) or unstructured (not organized).
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Q2. What is preprocessed data
Ans. 
Preprocessed data is data that has been cleaned, transformed, and organized for analysis or modeling.
• Preprocessed data is often used in machine learning and data analysis to improve the accuracy and efficiency of models.

• Common preprocessing steps include removing missing values, scaling features, and encoding categorical variables.

• Examples of preprocessing techniques include normalization, standardization, one-hot enco
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Q3. What do u mean by info
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Info refers to data or knowledge that provides details or context about a specific topic or subject.
• Info can be in the form of facts, statistics, or explanations.

• It helps to understand a topic better or make informed decisions.

• Examples of info include news articles, research papers, and educational resources.
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Q4. How to copy from 2 tables and paste in 3rd one in sql
Ans. 
Use SQL INSERT INTO SELECT statement to copy data from 2 tables and paste into a 3rd table.
• Use INSERT INTO SELECT statement to copy data from 2 tables and paste into a 3rd table.

• Specify the columns you want to copy from each table in the SELECT statement.

• Make sure the columns in the SELECT statement match the columns in the 3rd table where you are pasting the data.
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Q5. Reverse string using any language you know
Ans. 
Reverse a string using any programming language
• Use built-in functions like reverse() or slice() in languages like Python or JavaScript

• Iterate through the string in reverse order and append each character to a new string

• Use a stack data structure to push each character onto the stack and then pop them off to reverse the string
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Q6. A puzzle question was asked but i don't remeber it.
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Easy test they have scheduled virtual drive

Q1. What is your favourite Hobby
Ans. 
My favorite hobby is playing the guitar.
• I have been playing the guitar for 5 years.

• I enjoy learning new songs and techniques.

• Playing the guitar helps me relax and unwind after a long day.

• I have performed at a few local events and open mic nights.
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Q2. What is your strength
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Q1. 2 technical and 1 HR round
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It consist of mcq's and 2 programs

Q1. Spring security
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Q2. Programs on stream API
Ans. 
Stream API in Java provides a way to process collections of objects in a functional style.
• Stream API allows for easy manipulation of collections using functional programming concepts like map, filter, and reduce.

• It supports lazy evaluation, allowing for efficient processing of large datasets.

• Example: stream.filter(x -> x > 5).map(x -> x * 2).forEach(System.out::println)
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Q1. Architecture of recent project
Ans. 
Designed a microservices architecture using Docker and Kubernetes for a real-time analytics platform
• Utilized Docker containers to encapsulate each microservice

• Implemented Kubernetes for container orchestration and scaling

• Used Kafka for real-time data streaming between microservices
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Q2. Spring boot questions
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The codinds questions were too easy.

Q1. Cover the OOPS, Exception Handling, Collections,Arrays, Strings
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