Ques:- What is the basic difference between Publish Subscribe model and P2P model?
Ques:- How to run django in pycharm?
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Right Answer:
To run Django in PyCharm, follow these steps:
1. Open your Django project in PyCharm.
2. Go to `Run` > `Edit Configurations`.
3. Click on the `+` icon and select `Django Server`.
4. Set the host and port if needed (default is 127.0.0.1:8000).
5. Click `OK` to save the configuration.
6. Click the green play button or press `Shift + F10` to run the server.
Your Django application should now be running.
To run Django in PyCharm, follow these steps:
1. Open your Django project in PyCharm.
2. Go to `Run` > `Edit Configurations`.
3. Click on the `+` icon and select `Django Server`.
4. Set the host and port if needed (default is 127.0.0.1:8000).
5. Click `OK` to save the configuration.
6. Click the green play button or press `Shift + F10` to run the server.
Your Django application should now be running.
Ques:- Explain the Types of inheritances in django ?
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Shipmnts, AXESTRACK SOFTWARE SOLUTIONS, RELX Group, 360 Degree Cloud Technologies, Tower Research Capital LLC, Ebaotech, Deep Compute, Cateina Technologies, Ideal IT, Magnaquest,
Right Answer:
In Django, there are three types of inheritance:
1. **Abstract Base Classes**: Allows you to create a base class that other models can inherit from, without creating a separate database table for the base class.
2. **Multi-Table Inheritance**: Each model has its own database table, and the child model inherits fields from the parent model, creating a one-to-one relationship.
3. **Proxy Models**: Allows you to create a new model that behaves like the original model but can have different behavior or additional methods, without creating a new database table.
In Django, there are three types of inheritance:
1. **Abstract Base Classes**: Allows you to create a base class that other models can inherit from, without creating a separate database table for the base class.
2. **Multi-Table Inheritance**: Each model has its own database table, and the child model inherits fields from the parent model, creating a one-to-one relationship.
3. **Proxy Models**: Allows you to create a new model that behaves like the original model but can have different behavior or additional methods, without creating a new database table.
Ques:- Django group_by query
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FUTURISM TECHNOLOGIES PVT, AppItSimple Infotek Pvt Lmt, Talencia LLC, JustDial, ColorTokens, Thryve Digital, MRI Software, Akasa Labs, Casa Systems, KPIT Technologies,
Right Answer:
In Django, you can use the `annotate()` and `values()` methods to perform a group by query. Here's an example:
```python
from django.db.models import Count
from your_app.models import YourModel
result = YourModel.objects.values('field_to_group_by').annotate(count=Count('id'))
```
This will group the records by `field_to_group_by` and count the number of occurrences for each group.
In Django, you can use the `annotate()` and `values()` methods to perform a group by query. Here's an example:
```python
from django.db.models import Count
from your_app.models import YourModel
result = YourModel.objects.values('field_to_group_by').annotate(count=Count('id'))
```
This will group the records by `field_to_group_by` and count the number of occurrences for each group.
Ques:- What are disadvantages of Django ?
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Right Answer:
1. Steep learning curve for beginners.
2. Monolithic structure can be inflexible for small projects.
3. Can be overkill for simple applications.
4. Limited support for asynchronous programming.
5. Performance may not match lightweight frameworks for certain tasks.
6. Dependency on third-party packages can lead to compatibility issues.
1. Steep learning curve for beginners.
2. Monolithic structure can be inflexible for small projects.
3. Can be overkill for simple applications.
4. Limited support for asynchronous programming.
5. Performance may not match lightweight frameworks for certain tasks.
6. Dependency on third-party packages can lead to compatibility issues.
Ques:- What are all new featues in django latest version
Asked In :-
Indocosmo Systems, rapidera technologies, Amtex Software Solutions, NRSC National Remote Sensing Centre, V2STech Solutions, Reflections Info Systems, FlyNava Technologies, ThiDiff Technologies, Inductive Quotient Analytics, sophos,
Right Answer:
As of Django 4.2, some new features include:
1. **Python 3.8+ Support**: Enhanced compatibility with newer Python versions.
2. **Faster Queries**: Improved performance for certain query types.
3. **New `JSONField`**: Now available for all database backends.
4. **Async Views and Middleware**: Enhanced support for asynchronous programming.
5. **Model `Meta` Options**: New options for better model customization.
6. **Improved Error Messages**: More informative error messages for debugging.
7. **Form Rendering Improvements**: Enhanced form rendering capabilities.
8. **Customizable `Admin` Interface**: More options for customizing the Django admin.
Please check the official Django release notes for a complete list of features and changes.
As of Django 4.2, some new features include:
1. **Python 3.8+ Support**: Enhanced compatibility with newer Python versions.
2. **Faster Queries**: Improved performance for certain query types.
3. **New `JSONField`**: Now available for all database backends.
4. **Async Views and Middleware**: Enhanced support for asynchronous programming.
5. **Model `Meta` Options**: New options for better model customization.
6. **Improved Error Messages**: More informative error messages for debugging.
7. **Form Rendering Improvements**: Enhanced form rendering capabilities.
8. **Customizable `Admin` Interface**: More options for customizing the Django admin.
Please check the official Django release notes for a complete list of features and changes.
Ques:- What are RESTful principles and how do they apply to API design
Asked In :-
STIC SOFT E-SOLUTIONS, Addweb solutions, Dhruvsoft Services, Elite Software Solutions, QUALYS SECURITY TECHSERVICES, Tredence Analytics Solutions, Spark Infosys, Noesys Consulting, Deligence Technologies, Technostacks Infotech,
Right Answer:
RESTful principles include:
1. **Statelessness**: Each API call must contain all the information needed to understand and process the request, with no stored context on the server.
2. **Client-Server Architecture**: The client and server are separate, allowing for independent development and scalability.
3. **Uniform Interface**: A consistent way to interact with resources, typically using standard HTTP methods (GET, POST, PUT, DELETE).
4. **Resource-Based**: APIs should expose resources (data entities) through URIs, and clients interact with these resources.
5. **Representation**: Resources can be represented in various formats (like JSON or XML), and clients can request the format they prefer.
6. **Cacheability**: Responses should indicate whether they can be cached to improve performance and reduce server load.
These principles guide the design of APIs to be scalable, efficient, and easy to use.
RESTful principles include:
1. **Statelessness**: Each API call must contain all the information needed to understand and process the request, with no stored context on the server.
2. **Client-Server Architecture**: The client and server are separate, allowing for independent development and scalability.
3. **Uniform Interface**: A consistent way to interact with resources, typically using standard HTTP methods (GET, POST, PUT, DELETE).
4. **Resource-Based**: APIs should expose resources (data entities) through URIs, and clients interact with these resources.
5. **Representation**: Resources can be represented in various formats (like JSON or XML), and clients can request the format they prefer.
6. **Cacheability**: Responses should indicate whether they can be cached to improve performance and reduce server load.
These principles guide the design of APIs to be scalable, efficient, and easy to use.
Ques:- What is rate limiting in APIs and how is it implemented
Asked In :-
Vinove Software & Services Pvt Ltd, Object Frontier Software, Hidden Brains InfoTech, Netaxis IT Solutions (p), Rock Solid Solutions, Shipco IT, Walkover Web Solutions, Solace Infotech, Infinity Labs LLP, TNQ Technologies,
Right Answer:
Rate limiting in APIs is a technique used to control the number of requests a user can make to an API within a specific time period. It is implemented by setting thresholds (e.g., requests per minute) and using mechanisms like tokens, counters, or IP address tracking to monitor and restrict access when the limit is exceeded.
Rate limiting in APIs is a technique used to control the number of requests a user can make to an API within a specific time period. It is implemented by setting thresholds (e.g., requests per minute) and using mechanisms like tokens, counters, or IP address tracking to monitor and restrict access when the limit is exceeded.
Ques:- What is the difference between GET, POST, PUT, and DELETE in HTTP
Asked In :-
Xoriant Solutions Pvt Ltd, Object Frontier Software, KRIOS Info Solutions, Hidden Brains InfoTech, Shipco IT, Ziffity Solutions, Toxsl Technologies, Itobuz Technologies, Born Commerce, Infinity Labs LLP,
Right Answer:
GET is used to retrieve data from a server, POST is used to send data to a server to create a resource, PUT is used to update an existing resource on the server, and DELETE is used to remove a resource from the server.
GET is used to retrieve data from a server, POST is used to send data to a server to create a resource, PUT is used to update an existing resource on the server, and DELETE is used to remove a resource from the server.
Ques:- What are Webhooks and how do they differ from APIs
Asked In :-
AnAr Solutions, Shipco IT, Trigent Software, Toxsl Technologies, Codiant Software Technologies, Solace Infotech, Born Commerce, iROID Technologies, Dhruvsoft Services, Infinity Labs LLP,
Right Answer:
Webhooks are user-defined HTTP callbacks that are triggered by specific events in a web application, allowing real-time data transfer. They differ from APIs in that APIs require a request to be made to receive data, while webhooks automatically send data when an event occurs without needing a request.
Webhooks are user-defined HTTP callbacks that are triggered by specific events in a web application, allowing real-time data transfer. They differ from APIs in that APIs require a request to be made to receive data, while webhooks automatically send data when an event occurs without needing a request.
Ques:- What is API versioning and why is it important
Asked In :-
DREAMORBIT SOFTECH PVT, AnAr Solutions, STIC SOFT E-SOLUTIONS, Born Commerce, LiteBreeze Infotech, Oodles Technologies, Sun Technology Integrators, Webvillee Technology, SENSEI Technologies, Deligence Technologies,
Right Answer:
API versioning is the practice of managing changes to an API by assigning version numbers to different iterations of the API. It is important because it allows developers to introduce new features or make changes without breaking existing client applications that rely on older versions, ensuring backward compatibility and a smoother transition for users.
API versioning is the practice of managing changes to an API by assigning version numbers to different iterations of the API. It is important because it allows developers to introduce new features or make changes without breaking existing client applications that rely on older versions, ensuring backward compatibility and a smoother transition for users.
