Bajaj Finserv Interview Questions, Process, and Tips

Q1. What is difference between Association, Association, Aggregation ?
Ans. 
Association represents a relationship between two classes, Aggregation is a type of association with a whole-part relationship.
• Association represents a relationship between two classes without implying any ownership.

• Aggregation is a type of association where one class is a part of another class.

• Composition is a stronger form of aggregation where the part cannot exist without the whole.

• In UML, association is represented...read more
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Q2. Write Java program to invoke a AWS lambda function ?
Ans. 
To invoke an AWS Lambda function using Java program.
• Create an AWS Lambda client using AWS SDK for Java

• Invoke the Lambda function using invoke method

• Handle the response from the Lambda function
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Q3. Write Java program for Singleton pattern ?
Ans. 
Singleton pattern ensures a class has only one instance and provides a global point of access to it.
• Create a private static instance of the class

• Provide a public static method to access the instance

• Ensure the constructor is private to prevent instantiation
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Q4. How Security is maintained in Microservices ?
Ans. 
Security in Microservices is maintained through authentication, authorization, encryption, and monitoring.
• Implementing authentication mechanisms like OAuth, JWT, or API keys to verify the identity of clients accessing the microservices.

• Utilizing authorization techniques such as role-based access control (RBAC) or attribute-based access control (ABAC) to control what actions users can perform.

• Encrypting data in transit ...read more
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Q5. What design patterns you have worked ?
Ans. 
I have worked with design patterns such as Singleton, Factory, Observer, and Strategy.
• Singleton pattern ensures a class has only one instance and provides a global point of access to it.

• Factory pattern creates objects without specifying the exact class of object that will be created.

• Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified a...read more
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Q1. How much time you take to show the demo after getting the RFP ?
Ans. 
The time taken to show the demo after receiving the RFP varies based on project complexity and client requirements.
• The time frame for demo preparation can range from a few days to a few weeks, depending on the scope of the project.

• It is important to thoroughly understand the RFP requirements before scheduling the demo to ensure all key points are addressed.

• Collaboration with the sales team and other stakeholders is cru...read more
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Q2. What AWS services you have used ?
Ans. 
I have used a variety of AWS services including EC2, S3, RDS, Lambda, and CloudFormation.
• EC2 - Elastic Compute Cloud for scalable virtual servers

• S3 - Simple Storage Service for object storage

• RDS - Relational Database Service for managed databases

• Lambda - Serverless computing service for running code without provisioning servers

• CloudFormation - Infrastructure as Code service for automating resource provisioning
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Q3. Where AWS lambda you have used ?
Ans. 
I have used AWS Lambda for building serverless applications and automating tasks.
• Developed a serverless image processing application using AWS Lambda, S3, and API Gateway

• Implemented a cron job using AWS Lambda to automatically backup DynamoDB tables

• Integrated AWS Lambda with Amazon SNS to send notifications based on certain events
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Q1. What is the JavaScript code for finding repeating alphabets?
Ans. 
Use JavaScript to find repeating alphabets in an array of strings.
• Loop through each string in the array

• For each string, loop through each character and check if it is repeated

• Store the repeating alphabets in a separate array
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Q2. What are the Angular lifecycle hooks?
Ans. 
Angular lifecycle hooks are methods that allow you to tap into specific points in a component's lifecycle.
• ngOnChanges: Called when an input property changes

• ngOnInit: Called once the component is initialized

• ngDoCheck: Called during every change detection run

• ngAfterContentInit: Called after content (ng-content) has been projected into the component

• ngAfterContentChecked: Called after every check of the projected content

• ng...read more
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The aptitude test for Bajaj Auto Ltd generally focuses on evaluating candidates' problem-solving, logical reasoning, and technical skills. Below are the typical sections and details:


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1. Aptitude Test Structure:

The test usually comprises the following sections:

1. Quantitative Aptitude


2. Logical Reasoning


3. Verbal Ability


4. Technical Knowledge (Mechanical Engineering)




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2. Section-wise Details:

A. Quantitative Aptitude

Topics Covered:

Arithmetic: Profit & Loss, Time & Work, Time & Distance, Simple & Compound Interest.

Algebra: Linear equations, Quadratic equations.

Geometry: Area, Volume, and Perimeter.

Data Interpretation: Pie charts, Bar graphs, and Tables.

Ratio, Proportion, and Percentages.


Sample Question:
A car travels 240 km in 6 hours. What is its average speed?
Answer: Speed = Distance / Time = 240 / 6 = 40 km/hr.



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B. Logical Reasoning

Topics Covered:

Series Completion (Number, Alphabet).

Coding-Decoding.

Puzzles and Seating Arrangements.

Syllogisms.

Blood Relations and Direction Sense.


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Q1. What are the customization options available in the VoIP industry based on specific business requirements?
Ans. 
Customization options in VoIP industry vary based on business requirements.
• Customized call routing based on business hours and locations

• Integration with CRM systems for caller information

• Customized IVR menus for specific departments or services

• Call recording and transcription for compliance or training purposes

• Customized reporting and analytics based on specific KPIs
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Q2. How can VoIP support be improved, and what is the future of VoIP in relation to AI Bots?
Ans. 
VoIP support can be improved by integrating AI bots for enhanced customer service and troubleshooting. The future of VoIP lies in seamless integration with AI bots for automation and efficiency.
• Integrating AI bots for real-time troubleshooting and customer support

• Implementing natural language processing for improved user interactions

• Utilizing AI for predictive maintenance and proactive issue resolution

• Enhancing securit...read more
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Easy ques to answer basic

Easy ques to write. not tough ques

Q1. Easy ques to write.Not tough
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Q2. Easy Ques to write not tough
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Q1. Great to work here in Bajaj
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Q2. 15min interview and basic of SQL
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Q1. Salary acceptation?
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Q2. When to join?
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Q1. Previous experience ?
Ans. 
I have 5 years of experience in sales management, leading a team of 10 sales representatives to exceed targets consistently.
• Led a team of 10 sales representatives to achieve 20% increase in sales revenue

• Implemented new sales strategies resulting in 15% growth in customer base

• Managed key accounts and maintained strong relationships with clients
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Q2. Location ?
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Q1. Scenario based questions
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Q2. What is lazy loading?
Ans. 
Lazy loading is a technique used in web development to defer loading non-essential resources until they are needed.
• Lazy loading helps improve page load times by only loading necessary resources initially.

• It is commonly used in Angular applications to load modules, components, or routes on demand.

• Lazy loading can be implemented using Angular's loadChildren property in the routing configuration.
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Q3. What is switchMap?
Ans. 
switchMap is an operator in RxJS that projects each source value to an Observable which is merged in the output Observable.
• switchMap is used to switch to a new Observable whenever the source Observable emits a new value.

• It cancels the previous Observable subscription when a new value is emitted.

• Example: source$.pipe(switchMap(value => new Observable(value)))
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Q4. Observables and promises
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Q5. Difference between ?? and ?:
Ans. 
?? is the nullish coalescing operator, while ? is the optional chaining operator in Angular.
• ?? is used to provide a default value when a variable is null or undefined.

• ? is used to safely access nested properties of an object without causing errors if a property is null or undefined.
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Q6. What is services, modules, decorators, directive?
Ans. 
Services, modules, decorators, and directives are key concepts in Angular development.
• Services: Reusable code that can be injected into components to provide specific functionality.

• Modules: Containers for different parts of an Angular application, including components, services, and directives.

• Decorators: Functions that modify classes or properties in Angular, used for adding metadata or behavior to components.

• Directiv...read more
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Q7. What is multicasting ?
Ans. 
Multicasting is the process of sending data from one source to multiple destinations simultaneously.
• In multicasting, a single sender sends data to a group of receivers at the same time.

• It is commonly used in streaming services where one server sends data to multiple clients.

• Multicasting is more efficient than unicasting (one-to-one communication) when sending data to multiple recipients.
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Q8. What is RxJS ?
Ans. 
RxJS is a library for reactive programming using Observables to handle asynchronous data streams.
• RxJS stands for Reactive Extensions for JavaScript.

• It allows you to work with asynchronous data streams and events.

• Operators like map, filter, mergeMap, switchMap, etc., can be used to manipulate and combine streams.

• Example: Using RxJS to handle HTTP requests in Angular applications.
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