TCS Wings 1 T4 Django - Set 9



  1. You are building a Django Rest Framework API that allows users to upload files. You want to set a limit on the file types that can be uploaded. Where should you enforce this restriction?
    a) In the views.py file
    b) In the models.py file
    c) In the serializers.py file using a custom validator
    d) In the settings.py file

Answer: c) In the serializers.py file using a custom validator

  1. You want to run specific actions after an instance is saved in Django ORM, such as sending a notification. Which method should you override in the model to achieve this?
    a) pre_save()
    b) post_save()
    c) save()
    d) clean()

Answer: c) save()

  1. In a Django Rest Framework project, you need to validate input data before saving it to the database. Which method should you override in your serializer class?
    a) save()
    b) validate()
    c) is_valid()
    d) create()

Answer: b) validate()

  1. You are building a Django project that uses a large number of related models. To improve query performance when accessing related objects, which method should you use?
    a) prefetch_related()
    b) select_related()
    c) annotate()
    d) order_by()

Answer: b) select_related()

  1. In your Django Rest Framework project, you want to handle different media types in your API response, such as JSON and XML. How do you achieve this?
    a) Use DEFAULT_RENDERER_CLASSES in settings.py
    b) Set a ContentType header in views
    c) Override get_serializer() method
    d) Use ContentNegotiation class

Answer: a) Use DEFAULT_RENDERER_CLASSES in settings.py

  1. You are creating a REST API in Django Rest Framework and want to send email notifications when a new user registers. Where should you implement this functionality?
    a) In the views.py file
    b) In the models.py file using signals
    c) In the serializers.py file
    d) In settings.py

Answer: b) In the models.py file using signals

  1. In Django ORM, you need to query for records that contain a specific substring in a text field. Which lookup should you use?
    a) contains
    b) exact
    c) startswith
    d) endswith

Answer: a) contains

  1. Your Django Rest Framework project requires you to authenticate users using JWT tokens. Which library would you use to implement JWT-based authentication in DRF?
    a) rest_framework_simplejwt
    b) djangorestframework-jwt
    c) django-rest-auth
    d) oauthlib

Answer: a) rest_framework_simplejwt

  1. You need to perform a bulk update on multiple records in Django ORM in a single query. Which method should you use?
    a) bulk_update()
    b) update()
    c) save()
    d) create()

Answer: a) bulk_update()

  1. In your Django Rest Framework API, you want to return different responses for users with different roles (e.g., admin, regular user). How can you achieve this?
    a) Override the get() method in the view
    b) Use a custom permission class
    c) Check the user role in the serializer
    d) Use is_valid() to differentiate roles

Answer: b) Use a custom permission class

Comments

Post a Comment

Popular posts from this blog

TCS Wings 1 T4 Django - Set 1

Image
You are developing a Django application where users need to create accounts and login. After logging in, they should be redirected to their dashboard. Which Django feature will handle the redirection after login? a) RedirectView b) LoginView c) @login_required d) LOGIN_REDIRECT_URL Answer: d) LOGIN_REDIRECT_URL You have an e-commerce site built with Django, and users frequently submit reviews. You want to ensure that each user can only submit one review per product. How would you enforce this in the model? a) unique=True on the review field b) Add a UniqueConstraint combining user and product fields c) Use a ForeignKey with unique=True d) Validate it in the forms.py file Answer: b) Add a UniqueConstraint combining user and product fields Your Django Rest Framework API needs to return data for both admin and regular users, but you need to filter sensitive data for regular users. How would you customize the serializer for this? a) Use SerializerMethodField to control the output ...
Read more

TCS Wings 1 T4 Django - Set 10

Image
You are building a multi-tenant Django application where each user can only access their own data. How do you restrict access in Django Rest Framework? a) Use permissions.IsAuthenticated b) Override get_queryset() method in the view c) Use AllowAny permission d) Filter by user in the serializer Answer: b) Override get_queryset() method in the view In your Django project, you want to schedule periodic tasks such as clearing expired sessions. Which library should you use to schedule these tasks? a) Django Signals b) Django Celery c) Django Cache d) Django Middleware Answer: b) Django Celery You need to retrieve the first object from a Django ORM queryset, or return None if no objects are found. Which method should you use? a) get() b) first() c) last() d) filter() Answer: b) first() In your Django Rest Framework project, you want to prevent users from making too many API requests within a short period. Which feature would you implement? a) Permission Classes b) Rate Limiting c) Aut...
Read more

TCS Wings 1 T4 Django - Set 4

Image
You are designing a multi-tenant Django application where each user should only have access to their own data. How do you filter queryset results to ensure this security? a) Implement filtering in the templates b) Use get_object_or_404() with user data c) Override the get_queryset() method to include user-specific filtering d) Use get_context_data() in class-based views Answer: c) Override the get_queryset() method to include user-specific filtering In your Django application, users can belong to multiple groups. How do you represent this relationship in your model? a) Use a OneToOneField b) Use a ForeignKey c) Use a ManyToManyField d) Use a CharField with choices Answer: c) Use a ManyToManyField You want to add pagination to a Django Rest Framework API to display 20 items per page. How do you configure this? a) Set PAGINATE_BY in the view b) Set PAGINATE_BY_PARAM in the view c) Configure PAGE_SIZE in settings d) Use max_limit in the view Answer: c) Configure PAGE_SIZE in se...
Read more