iServeU Interview Questions, Process, and Tips

Q1. Write a dockerfile to install tomact and running a server
Ans. 
Dockerfile to install Tomcat and run a server
• Use a base image like 'openjdk:8-jre' to install Java

• Download and extract Tomcat tarball

• Set environment variables like CATALINA_HOME and PATH

• Expose port 8080 and start Tomcat server using 'catalina.sh run'
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Q1. How much was your previous in hand salary?
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Q2. How far do you stay from the office, during nights if needed can you come on your own during any critical situation (Note: I'm a woman)?
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Q3. Are you ok with 40% less in-hand pay from your previous job in Banglore, since you're getting to stay in your hometown and your expenses will be less here?
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Q4. Are you married? Do you have children? What does your husband do? How long are you planning to stay in Bhubaneswar?
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Q5. Are you ok with an employment bond of 24 months with a probation period of 12 months
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Q1. What are different modules of node js?
Ans. 
Node.js has several core modules that provide essential functionality for building applications.
• HTTP: Allows Node.js to transfer data over the Hyper Text Transfer Protocol (HTTP)

• FS: Provides file system operations like reading and writing files

• OS: Gives information about the operating system on which Node.js is running

• Path: Helps in working with file and directory paths

• Events: Allows to handle events in Node.js applica
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Q2. Difference between angular and node js
Ans. 
Angular is a front-end framework for building client-side applications, while Node.js is a back-end runtime environment for running server-side applications.
• Angular is used for building dynamic web applications with HTML, CSS, and TypeScript.

• Node.js is used for server-side scripting and building scalable network applications.

• Angular is a front-end framework developed and maintained by Google.

• Node.js is a back-end runti...read more
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Q3. Difference between process.nextTick( ) and setImmediate( )
Ans. 
process.nextTick() is called before any I/O events, while setImmediate() is called after I/O events.
• process.nextTick() is called at the end of the current event loop cycle, before any I/O events.

• setImmediate() is called at the beginning of the next event loop cycle, after I/O events.

• Use process.nextTick() for executing code asynchronously but as soon as possible.

• Use setImmediate() for executing code asynchronously afte
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Q4. How to implement async in node js
Ans. 
Async in Node.js can be implemented using callbacks, promises, or async/await.
• Use callbacks to handle asynchronous operations in Node.js

• Promises can be used for cleaner asynchronous code

• Async/await provides a more synchronous way to write asynchronous code
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Q5. General operations of Casendra CQL
Ans. 
Casendra CQL is a query language used for general operations in Casendra database.
• Casendra CQL is similar to SQL but optimized for Cassandra database

• It supports CRUD operations (Create, Read, Update, Delete)

• It allows for filtering, sorting, and aggregating data

• Example: SELECT * FROM table_name WHERE column_name = value;
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Q6. Characteristics of column family
Ans. 
Column family is a data model used in NoSQL databases to store related data together.
• Used in NoSQL databases like Apache Cassandra

• Consists of rows and columns

• Columns are grouped together and stored on disk sequentially

• Supports wide rows and dynamic columns

• Example: In a social media application, a column family could store user profiles with columns for name, age, and location
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Q1. CEO asked to turn on camera. Asked if i'm married (i'm a woman), the interview was scheduled for 10;30pm in the night. Asked me not to be so formal and treat him like a friend and be casual. I suspect he w...read more
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Array reverse in java

Q1. Required money for me
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Q2. Whyyou want to join
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Q3. Tell me about yourself
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Q4. Your hobby like
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Q5. Your language prefer
Ans. 
I prefer English as my language.
• English is my preferred language for communication.

• I am fluent in English and can effectively communicate in it.
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Q1. How will you increase our company's customer base from X to 2X in a matter of 1 month?
Ans. 
Implement targeted marketing campaigns, improve customer experience, and leverage social media to increase customer base.
• Identify target audience and create personalized marketing campaigns

• Improve customer experience through product enhancements and customer support

• Leverage social media platforms to reach a wider audience

• Collaborate with sales team to identify potential leads and convert them into customers

• Offer incent...read more
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Q2. How will you increase the revenue to 2x from each customer in a course of 2 months?
Ans. 
To increase revenue 2x from each customer in 2 months, focus on upselling, cross-selling, and improving customer retention.
• Implement upselling strategies by offering higher-priced versions or additional features of the product.

• Cross-sell by recommending complementary products or services to customers.

• Improve customer retention through personalized communication, loyalty programs, and exceptional customer service.

• Analyz...read more
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Q3. What will you do if the management cuts down the project timelines by half and your job depends on delivering it?
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Q4. What will be your tactic to acquire competitor's clients ?
Ans. 
To acquire competitor's clients, my tactic would be to offer a superior product or service, provide targeted marketing campaigns, and build strong relationships with potential clients.
• Develop a product or service that offers unique features or benefits compared to competitors.

• Conduct market research to identify the target audience and their needs.

• Create targeted marketing campaigns to showcase the advantages of our pro...read more
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Imagine you are fired from our company and you're furious and want to build a competitor of our company. Develop a deeply researched strategy to build up a company of a similar scale like ours in a matter of 2 years.

Q1. Tell me about yourself
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Q1. Full form of QR code
Ans. 
QR code stands for Quick Response code.
• QR code is a type of barcode that can be scanned using a smartphone or QR code reader.

• It was first developed in Japan for tracking automotive parts.

• QR codes can store various types of data such as URLs, text, contact information, and more.

• They are widely used for marketing, ticketing, inventory management, and authentication purposes.

• QR codes consist of black squares arranged on a...read more
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Q1. Explain about yourself?
Ans. 
I am a software developer with 5 years of experience in Java, Python, and SQL.
• I have a Bachelor's degree in Computer Science from XYZ University.

• I have worked on developing web applications using Java Spring framework.

• I am proficient in writing complex SQL queries for database management.

• I have experience in developing automation scripts using Python.
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Q2. What is OOP'S Concept in Java?
Ans. 
OOP's concept in Java refers to Object-Oriented Programming, where code is organized around objects and classes.
• OOP focuses on creating reusable code through classes and objects

• Encapsulation, Inheritance, Polymorphism, and Abstraction are key principles of OOP

• Example: Creating a class 'Car' with properties like 'make', 'model', and methods like 'startEngine', 'drive'
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