Codenia Technologies Interview Questions, Process, and Tips

We examined climate change and its impact on daily life by 2:00 PM. The session included a brief introduction followed by an open discussion.

Q1. What is the causes of multithreading and multiprocessing ?
Ans. 
Multithreading and multiprocessing are techniques to achieve concurrent execution in programs, improving performance and resource utilization.
• Multithreading allows multiple threads to run in a single process, sharing memory space.

• Example: A web server handling multiple requests simultaneously using threads.

• Multiprocessing involves multiple processes, each with its own memory space, running independently.

• Example: A data...read more
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Q2. Difference between deep copy and shallow copy
Ans. 
Deep copy creates a new object with copies of nested objects; shallow copy copies references to nested objects.
• Shallow copy: Creates a new object but inserts references to the original objects. Example: `list2 = list1.copy()`.

• Deep copy: Creates a new object and recursively copies all objects found in the original. Example: `import copy; list2 = copy.deepcopy(list1)`.

• Modifying a shallow copy can affect the original obje...read more
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Q1. What is middleware?
Ans. 
Middleware is a layer in web applications that processes requests and responses between the client and server.
• Middleware acts as a bridge between different parts of an application.

• It can handle tasks like authentication, logging, and request modification.

• In Laravel, middleware can be created using the 'php artisan make:middleware' command.

• Example: A middleware can check if a user is authenticated before allowing access...read more
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Q2. How to upload files in laravel?
Ans. 
Uploading files in Laravel involves using the built-in file storage capabilities for easy handling and management.
• Use the `request()->file('input_name')` method to access the uploaded file.

• Validate the file using Laravel's validation rules, e.g., `request()->validate(['file' => 'required|file|mimes:jpg,png,pdf|max:2048']);`.

• Store the file using `store()` method, e.g., `$path = $request->file('input_name')-&...read more
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We had a discussion on the impact of technology on modern education at 3:00 PM, which included an open exchange of ideas and a summary to conclude the session.

Our group discussion on the impact of technology on modern education was held at 2:00 PM. We started with a quick introduction, followed by the sharing of ideas.

Q1. Create models in node.js using express framework
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Q2. Routing in react.js and also Some Hooks
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We had a group discussion on the role of leadership, from 2:00pm to 3:00pm. The discussionn was focused on sharing ideas and strategies, and experience.