Write Java class for a blocking queue: when the queue is empty and read method is invoked, it is blocked until something is on the queue. When the queue is full and write method is invoked, it is blocked until an entry in the queue is available.
Back End Engineer Interview Questions
Back End Engineer Interview Questions
Se ti stai candidando per una posizione di Back-end engineer, devi sapere che gli intervistatori desiderano sapere se hai le conoscenze necessarie per progettare, costruire e gestire il lato server di un sito web. Preparati a rispondere a domande sulle ultime novità in materia di web design e tecnologia, così come a domande sulle tue capacità di risoluzione dei problemi, abilità di gestione del tempo e doti comunicative.
Domande tipiche dei colloqui per Back-end engineer e come rispondere
Question 1
Domanda 1: Parlami degli ultimi progressi nella costruzione di siti web e server.
How to answer
Come rispondere: Le aziende non cercano solo personale aggiornato sulle ultime novità tecnologiche, ma desiderano persone innovative e all'avanguardia. Quando parli degli ultimi progressi nelle tecniche di web design e web building, spiega come incorporeresti questi miglioramenti attuali nel sito web dell'azienda.
Question 2
Domanda 2: Ti piace lavorare in team?
How to answer
Come rispondere: I back-end engineer devono spesso lavorare in team per sviluppare e gestire un sito web. Gli intervistatori vogliono sapere se riusciresti a lavorare bene in team con il personale già presente in azienda. Metti in evidenza la tua capacità di comunicare efficacemente e di collaborare con gli altri.
Question 3
Domanda 3: Puoi raccontarmi di una volta in cui hai dovuto rispettare una scadenza imminente?
How to answer
Come rispondere: Quando ti viene posta questa domanda, sottolinea le tue abilità di gestione del tempo e di rimanere organizzato e concentrato anche in situazioni di forte stress. Le aziende cercano persone in grado di lavorare bene anche sotto pressione.
1,560 back end engineer interview questions shared by candidates
How you think your project and how you finished.
(Algorithmic Round) Implement LRU Cache (Variant). Talk about the pros and cons of using this data structure including time complexity. (Design rounds) How would you create an API? Rest or GRPC? Tell me the structure of the payload? JSON or XML? What are you API Methods? How would you make v1 API compatible with v2 API? (object oriented round) There is a code quality round where you will be given buggy, unstructured, code that calculates price of booking a rental car, and ask you to make it production grade. Think about design patterns. Think about business requirements changing. (Design round) There is a system design round with VP of engineering. Design a system that you can offer to companies which can authorize employees into buildings using badges. How would you scale the system out? You must drive the entire conversation, and talk about justification of your ideas.
Q1: How does the Sync process between mobile app and backend app work? Q2: Solve a graph theory question!
Tell me about your internship.
Most of the questions were about my working experience and the projects I have implemented.
They will ask you to list all of your knowledge with various coding languages and frameworks, as well as how you've used these technologies in your past workplaces.
Describe what you are looking for in your next position? What drew you to apply to Unu? Describe the internal development processes you have in your current position What are your salary expectations?
Have you worked with android before?
What was a time that you had to solve a problem? How and what ideas did you come up with to solve it?
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