CapFront Technologies Software Engineer Intern Trainee Interview Questions and Answers

DSA coding round.
Graph based question, dp question.

Q1. 1. design service to download big file
Ans. 
Design a service to download large files.
• Use a scalable architecture to handle large file downloads.

• Implement resumable downloads to handle network interruptions.

• Use parallel downloading to speed up the download process.

• Implement authentication and authorization to ensure security.

• Provide progress updates to the user during the download process.
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Q1. Java based questions Spring beans
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Q1. What is Java String pool?
Ans. 
Java String pool is a special memory area in Java heap where String literals are stored to optimize memory usage.
• String pool is a part of Java heap memory.

• String literals are stored in the String pool to avoid duplicate objects.

• Strings created using double quotes are stored in the String pool.

• Strings created using new keyword are not stored in the String pool.
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Q1. Did you have any conflicts with your peers and have did you handle it?
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Q1. Leetcode style question on summing 2 numbers
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Modify and explain code

Q1. Popular system design question
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Q1. Tell me about a time when...
Ans. 
I successfully led a team project to develop a new feature for our company's website.
• Assigned tasks to team members based on their strengths and skills

• Held regular meetings to track progress and address any issues

• Collaborated with other departments to gather requirements and feedback

• Completed the project on time and within budget
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There was a hacker rank assignment

Leetcode style question, medium

Q1. About previous work done
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Q1. What is private and public key.
Ans. 
Private and public keys are used in encryption to secure communication. Public key is shared with others, while private key is kept secret.
• Public key is used to encrypt data and can be shared with anyone.

• Private key is used to decrypt data and must be kept secret.

• Public key is derived from private key in asymmetric encryption.

• Example: SSL/TLS certificates use public and private keys for secure communication.
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Q2. What is difference beween http and https.
Ans. 
HTTP is unsecured protocol while HTTPS is secured protocol using SSL/TLS encryption.
• HTTP stands for Hypertext Transfer Protocol, while HTTPS stands for Hypertext Transfer Protocol Secure.

• HTTP operates on port 80, while HTTPS operates on port 443.

• HTTPS uses SSL/TLS encryption to secure the communication between the client and server, while HTTP does not.

• HTTPS provides data integrity, authentication, and encryption, maki...read more
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Javascript,html, CSS and MySQL

Q1. Basic NodeJs and MySQL questions,scenario-based technical questions and basic interview questions
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Q2. What is an event loop, The second highest from the table
Ans. 
An event loop is a programming construct that waits for and dispatches events or messages in a program.
• Event loop is commonly used in asynchronous programming to handle tasks like I/O operations without blocking the main thread.

• It continuously checks for events in a queue and processes them one by one.

• Examples of event loops include Node.js event loop for handling asynchronous operations in JavaScript.

• Event loop helps ...read more
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Q1. Basic nodejs and SQL queries question
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Q1. Basic interview question and technology based
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