INCREFF Sde1 Interview Questions and Answers

Q1. What are different types of streams
Ans. 
Streams are a sequence of data elements made available over time. There are different types of streams.
• Byte Streams

• Character Streams

• Buffered Streams

• Data Streams

• Object Streams

• Print Streams

• File Streams

• Network Streams
Answered by AI
Add your answer

Q1. Talks about previous projects and architecture.
Add your answer

Q1. More talks about previous projects and underlying architecture
Add your answer

Build a typeahead component

Q1. Build a form for personal details
Ans. 
Build a form for personal details
• Include fields for name, email, phone number, address, date of birth

• Use input fields, dropdowns, and date pickers for user input

• Add validation for required fields and correct formats

• Consider user experience with clear labels and easy navigation
Answered by AI
Add your answer
Q2. Add validations to different fields
Ans. 
Implement validations for different fields in software development.
• Identify the fields that require validation such as email, password, phone number, etc.

• Use regular expressions to validate input data format.

• Implement client-side and server-side validations to ensure data integrity.

• Display error messages for invalid input to guide users on correct data entry.
Answered by AI
Add your answer

Q1. Leetcode medium question using heap
Add your answer
Q2. MySQL Queries using joins, group by, aggregate functions
Add your answer

Q1. Leetcode medium question of string
Add your answer
Q2. Database design for the notification service
Ans. 
Design a database schema for a notification service
• Identify the entities involved such as users, notifications, and devices

• Create tables for each entity with relevant attributes

• Establish relationships between tables using foreign keys

• Consider indexing for efficient retrieval of notifications

• Implement a mechanism for tracking read/unread status of notifications
Answered by AI
Add your answer

Q1. Dsa question regarding linked list and hashmap
Add your answer

Easy to medium, can solve with leetcode medium

Q1. Number of islands count
Ans. 
Count the number of islands in a grid of '1's and '0's
• Iterate through the grid and for each '1' encountered, perform a depth-first search to mark all connected '1's as visited

• Increment the island count for each new island found

• Ensure to handle boundary cases and check for visited nodes
Answered by AI
Add your answer
Q2. First and last index of a particular element in an array
Ans. 
Find the first and last index of a specific element in an array of strings.
• Iterate through the array and keep track of the index of the first and last occurrence of the element.

• Return the first and last index once the iteration is complete.

• Example: Array ['apple', 'banana', 'apple', 'orange'], element 'apple' - First index: 0, Last index: 2.
Answered by AI
Add your answer

2hrs aptitude test was there

2 hrs coding test was there

GD was conducted and then i passed it

Hackerearth platform was provided , Question was based on Tree dsa. Need to run and pass few test cases.

Design patterns , chess LLD

Design blocking queue which can handle the multithreading scenario

Q1. Last project experiences
Ans. 
Developed a web application for tracking inventory and sales data
• Used React for front-end development

• Implemented RESTful APIs using Node.js and Express

• Utilized MongoDB for database management
Answered by AI
Add your answer
Q2. And management cases.
Add your answer
Q3. Discussion about recent projects
Add your answer
Q4. Discussion about working in projects for which hiring for
Add your answer
Q5. Discussion about why leaving previous company.
Add your answer

Q1. Question on linkedlist, remove duplicates
Add your answer
Q2. House robber 2,3
Add your answer