tech interview: a few Java core and DB questions, and then a code review on intentionally bad code
Associate Developer Interview Questions
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homework: I had to implement a small service that would make calls to an API. interfaces and a basic test suite were provided, I was given a couple of days to deliver
Specific programming questions without context
1. How would you prevent SQL injection in a PHP application interacting with a MySQL database? Provide a code example. 2. Explain the process of connecting to a MySQL database using PDO in PHP. What are the benefits of using PDO over MySQLi? 3. Describe how you would implement a RESTful API in PHP that interacts with a MySQL database. 4. How would you handle file uploads in PHP and store metadata about the files in a MySQL database? Provide a high-level overview. 5. Discuss the concept of prepared statements in MySQL. How would you use them in PHP to improve security and performance?
They asked me about the database queries
A: They asked me about the pros and cons of using the Singleton pattern in a multithreaded environment.
All the questions was from Resume
They asked me about the implementation of React.js concepts such as creating default props, handling onChange events, and applying min/max validations.
Arrays, sorting, loops, functions and OOPS
The most difficult question is the one you are not prepared for at all.
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