CHI Limited Sse Programmer Analyst Interview Questions and Answers

Q1. Que about MVC
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Q2. System Design of twitter
Ans. 
Twitter system design involves components like user authentication, tweet storage, timeline generation, and scalability.
• User authentication: Implement OAuth for secure login.

• Tweet storage: Use databases like MySQL or NoSQL for storing tweets.

• Timeline generation: Use algorithms to fetch and display tweets in user timelines.

• Scalability: Implement sharding and load balancing for handling large user base.

• Real-time updates:
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Q1. What is Java language
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Java is a high-level programming language known for its portability, security, and object-oriented features.
• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)

• It is object-oriented, allowing for modular and reusable code

• Java is known for its security features, such as sandboxing to prevent malicious code execution

• Popular Java frameworks include Spring, Hibernate, and Android
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Q1. Java basic questions - oops,abstraction
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Q2. What is interfaces
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Interfaces are a way to define a contract between two entities in a program.
• Interfaces define a set of methods that a class must implement

• They allow for polymorphism and loose coupling

• Interfaces can be used to create reusable code

• Example: Java's Comparable interface defines a method for comparing objects
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1st round is Cognitive which consists of English, pseudocodes, Arthametic and reasoning.

2nd is coding consists of 2nd questions.

Q1. Introduce yourself? Tell me about your projects. Basics in python.
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Q2. Why do you choose engineering
Ans. 
I chose engineering because I have always been fascinated by problem-solving and creating innovative solutions.
• Passion for problem-solving and creating innovative solutions

• Interest in technology and how things work

• Opportunities for creativity and continuous learning

• Desire to make a positive impact on society through technological advancements
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Who are you in my job?

Q1. In which sector were you born?
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Q2. India i am born is this
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Q1. Difference between let and const in javascript
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Q2. Map() uses
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Q3. Concat 2 arrays
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Q1. .net life cycle
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Q2. SQL query and difference between DDL and DML
Ans. 
SQL query is used to retrieve data from a database, DDL is for defining structure, DML is for manipulating data.
• SQL query is used to retrieve data from a database, such as SELECT * FROM table_name.

• DDL (Data Definition Language) is used to define the structure of database objects, like CREATE TABLE or ALTER TABLE.

• DML (Data Manipulation Language) is used to manipulate data in the database, like INSERT, UPDATE, DELETE.
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