Senior Technology Lead
Senior Technology Lead Interview Questions and Answers
Q1. what are all the steps do you follow to prevent from PRD INC
Steps to prevent PRD INC
Regularly update software and security patches
Implement strong access controls and authentication measures
Conduct regular security audits and penetration testing
Educate employees on cybersecurity best practices
Implement data encryption and backup procedures
Q2. How does Laravel prevent SQL Injection?
Laravel prevents SQL Injection by using parameter binding and prepared statements.
Laravel uses parameter binding to automatically sanitize user input before executing SQL queries.
Prepared statements are used to separate SQL code from user input, preventing malicious SQL injection attacks.
Eloquent ORM in Laravel also helps prevent SQL injection by automatically escaping input values.
Q3. What is reverse routing in Laravel?
Reverse routing in Laravel is the process of generating URLs based on route names.
Reverse routing helps in generating URLs dynamically without hardcoding them in the application.
It allows developers to easily change the URL structure without affecting the codebase.
Example: route('profile') will generate the URL for the 'profile' route.
Example: route('user.show', ['id' => 1]) will generate the URL for the 'user.show' route with the parameter 'id'.
Q4. Small output type program implementation
Implementing a small output type program involves writing code to achieve a specific task or calculation.
Define the problem statement and expected output clearly
Choose the appropriate programming language and tools
Write the code to perform the required task
Test the program with sample inputs to ensure correctness
Optimize the code for efficiency if needed
Q5. What design pattern used
The design pattern used is the Singleton pattern.
Ensures a class has only one instance and provides a global point of access to it
Commonly used in scenarios where only one instance of a class is needed, such as database connections or logging
Implemented by creating a static method to return the same instance of the class every time it is called
Q6. Error handling using express
Error handling in Express involves using middleware functions to catch and handle errors.
Use try-catch blocks in route handlers to catch synchronous errors
Use next function in middleware to pass errors to error handling middleware
Create a custom error handling middleware to handle errors globally
Use status codes and error messages to communicate errors to clients
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