1. Can you explain the difference between `has_many :through` and `has_and_belongs_to_many` associations in Ruby on Rails? When would you use one over the other? 2. How do you handle background jobs in a Rails application? Can you describe your experience with Sidekiq or any other background processing library? 3. Can you walk me through the steps to optimize an N+1 query problem in a Rails application? How do you usually identify and fix such issues?
I was asked about all the industry experience while working on the projects
Cron job and thread
Várias perguntas sobre termos técnicos como VPNs, protocolo TCP/IP, DNS, e outros
Perguntaram sobre a minha experiência, expectativa salarial, etc. Porém o entrevistador é muito grosso e pouco profissional.
Just reviewing the application process.
Experience, what am I studying, salary expectations
General questions about my experience.
They ask not to share the challenges.
When would you use an RDBMS vs a NoSQL database backend?
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