EntityFramework questions, from my perspective it looked like they needed someone with alot of experience with it. What is the difference between IEnumerable and IQueryable? What is an attribute? Have you used it? How do you pass a value type param as reference?
tell me about the stacks that you worked?
La tecnologia principal de la vacante era React.js y se evaluo conceptos de React, Redux, y GraphQL, el como y por que se deberian utilizar estas tecnologias, y cuales son sus ventajas.
- variable hoisting - event loop - javascript variable scope - difference between let, const, var, function - typecasting in javascript - difference between primary data type & wrapper classes - call by value & call by reference - AWS services like EC2, S3, SQS, SNS, ECR, lambda, step functions - system design for big data download from database using AWS services
Angular: 1. How to import an Advertisement in Angular Single page component. Given Google/Facebook page and asked to explain the scenario of communicating local component with remote advertisement 2. How many files extracted if we compile and run angular app in browser? 3. Module to module communication in Angular? Java: 1. Program to implement JMS/ActiveMQ (with config)? 2. Difference between ArrayList, Vector and HashTable and Hashmap? 3. Write a Junit use cases where you have 3 methods, one returns void, one returns JSON and another return exception? 4. Multithreading- Request1 having 10 threads and Request 2 have to wait until request 1 process 10 threads? How? 5. Binary Tree Search algorithm? 6. Difference between Collection and Collections? JS: 1. How to write immutable objects in JavaScript? How many ways do we have? 2. Difference between let/var/const? 3. What is Chaining and Throating in JS? 4. Event capturing and event bubbling?
What is your biggest strength?
Difference between get and post
Front-end: Fundamental questions about JavaScript. They don't care whether you know Angular, React, or Vue.js. As a smart company, they realized that a good developer can easily switch between libraries/frameworks if given the room to do so. I was challenged with a really fun set of questions that lead to one another within JavaScript. The interviewer was genuinely interested to see how I think, and didn't care much about how precise my code is. Practice on your deep JavaScript understanding and you should be alright. Make sure to be aware of all the quirks of JavaScript.
Implement a function in JS to fetch data from a URL and render it on UI.
Tell about my previous roles, and to tell about improtant projects I did.
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