trieu.dev.da
Nguyễn Thanh Triều
1. Câu hỏi về PHP
- Can you explain the differences between PHP 5 and PHP 7 in terms of performance and features?
- How do you optimize PHP code for better performance, and what tools do you use for profiling?
- Describe your experience with PHP frameworks. Which ones have you worked with, and which do you prefer?
- Explain what MVC (Model-View-Controller) is and how it's implemented in PHP frameworks like Laravel or Symfony.
- What is object-oriented programming (OOP) in PHP, and why is it important? Can you provide an example of an OOP concept in PHP?
- How do you handle security concerns in PHP applications, including SQL injection and cross-site scripting (XSS) attacks?
- Describe the steps involved in connecting PHP to a database, and discuss the advantages and disadvantages of using PDO versus MySQLi.
- Have you worked with RESTful APIs in PHP? Can you explain how to create and consume them?
- What are namespaces in PHP, and why are they useful?
- Discuss the benefits of using Composer for managing dependencies in a PHP project.
- How do you handle error handling and logging in PHP applications?
- Can you explain the differences between cookies and sessions in PHP and when to use each?
- What is the use of traits in PHP, and provide an example of when you might use them.
- Explain the concept of autoloading in PHP. How does it work, and why is it important?
- Describe the process of caching in PHP. What caching mechanisms have you used in your projects?
- How do you manage and optimize the performance of large-scale PHP applications with high traffic?
- Have you worked with PHP Unit or other testing frameworks for PHP? How do you ensure code quality and test coverage in your projects?
- Can you discuss the benefits and drawbacks of using PHP for command-line scripting?
- Describe your experience with continuous integration and continuous deployment (CI/CD) pipelines in PHP projects.
- How do you keep up-to-date with the latest developments and best practices in the PHP ecosystem?
- What is the difference between MyISAM and InnoDB storage engines in MySQL, and when would you use one over the other?
- Can you explain the concept of indexing in MySQL? What are the different types of indexes, and when would you use them?
- How do you optimize SQL queries for better performance in MySQL? Mention some query optimization techniques.
- Describe the ACID properties in the context of database transactions. How does MySQL ensure data consistency and integrity?
- What is normalization in database design, and why is it important? Can you provide an example of normalizing a database schema?
- Explain the differences between INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN in MySQL. When would you use each type of join?
- How do you handle duplicate records in MySQL when inserting data into a table? Are there any unique constraints you consider?
- What is the purpose of the EXPLAIN statement in MySQL, and how can it be used to analyze query execution plans?
- Discuss the advantages and disadvantages of using stored procedures and triggers in MySQL.
- How would you back up and restore a MySQL database? What tools and methods do you prefer for database backups?
- Can you explain the concept of database sharding in MySQL? When and why would you implement database sharding?
- What are foreign keys in MySQL, and how do they maintain referential integrity between tables?
- How do you handle SQL injection in PHP when interacting with a MySQL database? Describe best practices for secure SQL queries.
- Have you worked with partitioning in MySQL? Explain what it is and when it's useful in database management.
- What are the benefits of using stored functions and user-defined functions (UDFs) in MySQL? Provide examples of scenarios where you would use them.
- Describe the differences between MyISAM and InnoDB table locking mechanisms. How do they affect concurrent access and performance?
- Can you explain the concept of database normalization forms (1NF, 2NF, 3NF, BCNF)? When and why would you use each form in database design?
- How do you handle large datasets in MySQL? What techniques and tools do you use for optimizing performance and managing scalability?
- What is replication in MySQL, and how does it work? Discuss its use cases and benefits.
- Have you worked with NoSQL databases in combination with MySQL? Explain when and why you might use both types of databases in a project.