GoMechanic Android Developer Interview Questions and Answers

Q1. Build an sample app server with express.js
Ans. 
Build a sample app server using express.js
• Install express.js using npm

• Create a new express app

• Set up routes and middleware

• Start the server to listen on a specific port
Answered by AI
Add your answer
Q2. How do you make connection with database in your project
Ans. 
I use JDBC (Java Database Connectivity) to establish connection with the database in my project.
• Use JDBC API to connect to the database

• Load the JDBC driver

• Create a connection object

• Create a statement object

• Execute SQL queries
Answered by AI
Add your answer
Q3. Write multer middleware code.
Ans. 
Multer is a middleware for handling multipart/form-data, used for file uploads in Node.js.
• Install multer package using npm: npm install multer

• Require multer in your Node.js file: const multer = require('multer')

• Set up multer middleware with desired options: const upload = multer({ dest: 'uploads/' })

• Use the upload middleware in your route handler to process file uploads
Answered by AI
Add your answer

Basic aptitude with tracing program

3 problem with easy to hard

Was bit tough and need to concentrate on work time

Was about coding in any language such as Java python

Consists of 5 questions of DSA
1 Knapsack, 1 bitwise, 1 string , 1 basic mathematics, 1 dynamic programming

Q1. Based on Coding question and dbms and question based on resume.
Add your answer

Q1. Recursive approach for printing prime number It was taken by CTO of company
Add your answer

2 DSA Question with 60 hr duration

They asked advanced currying and vanilla javascript which no one uses

Q1. Coding questions medium level
Add your answer
Q2. Coding questions hard
Add your answer

Q1. Coding questions
Add your answer
Q2. Questions related to oops, operating system,DBMS , SQL
Add your answer

Q1. General questions about zepto
Add your answer
Q2. Questions related to resume
Add your answer

Q1. Binary search for closest element
Ans. 
Binary search to find the closest element in a sorted array
• Implement binary search to find the target element in the array

• Keep track of the closest element found so far while searching

• Update the closest element if a closer one is found during the search
Answered by AI
Add your answer
Q2. String manipulation
Add your answer

Q1. Low level Design for an online e-commerce website
Ans. 
Low level design for an online e-commerce website involves designing the architecture and components of the website.
• Identify the main components such as user interface, database, payment gateway, product catalog, etc.

• Design the database schema to store user information, product details, orders, etc.

• Implement user authentication and authorization mechanisms for secure access.

• Integrate payment gateway for processing tran...read more
Answered by AI
Add your answer