Linkedin Django Skills Assessment Answers Updated

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Linkedin Django Skills Assessment Answers

 

Q1. To cache your entire site for an application in Django, you add all except which of these settings?

• django.middleware.common.CommonMiddleware
• django.middleware.cache.UpdateCacheMiddleware
• django.middleware.cache.FetchFromCacheMiddleware
• django.middleware.cache.AcceleratedCacheMiddleware

Q2. In which programming language is Django written?

• C++
• Java
• Python
• Ruby

Q3. To automatically provide a value for a field, or to do validation that requires access to more than a single field, you should override the**_** method in the**_** class.

• validate(); Model
• group(); Model
• validate(); Form
• clean(); Field

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Q4. A client wants their site to be able to load “Rick & Morty” episodes by number or by title—e.g., shows/3/3 or shows/picklerick. Which URL pattern do you recommend?

• url(r’shows/int:season/int:episode/’, views.episode_number)
• path(‘shows/int:season/int:episode/’, views.episode_number),
• path(‘shows/int:season/int:episode’, views.episode_number),
• url(r’^show/(?P[0-9]+)/(?P[0-9]+)/$’, views.episode_number),

Q5. How do you determine at startup time if a piece of middleware should be used?

• Raise MiddlewareNotUsed in the init function of your middleware.
• Implement the not_used method in your middleware class.
• List the middleware beneath an entry of django.middleware.IgnoredMiddleware.
• Write code to remove the middleware from the settings in [app]/init.py.

Q6. How do you turn off Django’s automatic HTML escaping for part of a web page?

• Place that section between paragraph tags containing the autoescape=off switch.
• Wrap that section between { percentage mark autoescape off percentage mark} and {percentage mark endautoescape percentage mark} tags.
• Wrap that section between {percentage mark autoescapeoff percentage mark} and {percentage mark endautoescapeoff percentage mark} tags.
• You don’t need to do anything—autoescaping is off by default.

Q7. Which step would NOT help you troubleshoot the error “django-admin: command not found”?

• Check that the bin folder inside your Django directory is on your system path.
• Make sure you have activated the virtual environment you have set up containing Django.
• Check that you have installed Django.
• Make sure that you have created a Django project.

Q8. Every time a user is saved, their quiz_score needs to be recalculated. Where might be an ideal place to add this logic?

• template
• model
• database
• view

Q9. What is the correct way to begin a class called “Rainbow” in Python?

• Rainbow {}
• export Rainbow:
• class Rainbow:
• def Rainbow:

Q10. You have inherited a Django project and need to get it running locally. It comes with a requirements.txt file containing all its dependencies. Which command should you use?

• django-admin startproject requirements.txt
• python install -r requirements.txt
• pip install -r requirements.txt
• pip install Django

Q11. Which best practice is NOT relevant to migrations?

• To make sure that your migrations are up to date, you should run updatemigrations before running your tests.
• You should back up your production database before running a migration.
• Your migration code should be under source control.
• If a project has a lot of data, you should test against a staging copy before running the migration on production.

Q12. What will this URL pattern match? url(r’^$’, views.hello)

• a string beginning with the letter Ra string beginning with the letter R
• an empty string at the server root
• a string containing ^ and $a string containing ^ and $
• an empty string anywhere in the URLan empty string anywhere in the URL

Q13. What is the typical order of an HTTP request/response cycle in Django?

• URL > view > template
• form > model > view
• template > view > model
• URL > template > view > model

Q14. Django’s class-based generic views provide which classes that implement common web development tasks?

• concrete
• thread-safe
• abstract
• dynamic

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Q15. Which skills do you need to maintain a set of Django templates?

• template syntax
• HTML and template syntax
• Python, HTML, and template syntax
• Python and template syntax

Q18. Which is NOT a valid step in configuring your Django 2.x instance to serve up static files such as images or CSS?

• In your urls file, add a pattern that includes the name of your static directory.
• Create a directory named static inside your app directory.
• Create a directory named after the app under the static directory, and place static files inside.
• Use the template tag {percentage mark load static percentage mark}.

Q19. What is the correct way to make a variable available to all of your templates?

• Set a session variable.
• Use a global variable.
• Add a dictionary to the template context.
• Use RequestContext.

Q20. Should you create a custom user model for new projects?

• No. Using a custom user model could break the admin interface and some third-party apps.
• Yes. It is easier to make changes once it goes into production.
• No. Django’s built-in models.User class has been tried and tested—no point in reinventing the wheel.
• Yes, as there is no other option.

Q21. You want to create a page that allows editing of two classes connected by a foreign key (e.g., a question and answer that reside in separate tables). What Django feature can you use?

• actions
• admin
• mezcal
• inlines

Q22. Why are QuerySets considered “lazy”?

• The results of a QuerySet are not ordered.
• QuerySets do not create any database activity until they are evaluated.
• QuerySets do not load objects into memory until they are needed.
• Using QuerySets, you cannot execute more complex queries.

Q23. You receive a MultiValueDictKeyError when trying to access a request parameter with the following code: request.GET[‘search_term’]. Which solution will NOT help you in this scenario?

• Switch to using POST instead of GET as the request method.
• Make sure the input field in your form is also named “search_term”.
• Use MultiValueDict’s GET method instead of hitting the dictionary directly like this: request.GET.get(‘search_term’, ”).
• Check if the search_term parameter is present in the request before attempting to access it.

Q24. Which function of Django’s Form class will render a form’s fields as a series of tags?

• show_fields()
• as_p()
• as_table()
• fields()

Q25. You have found a bug in Django and you want to submit a patch. Which is the correct procedure?

• Fork the Django repository GitHub.
• Submit a pull request.
• all of these answers.
• Run Django’s test suite.

Q26. Django supplies sensible default values for settings. In which Python module can you find these settings?

• django.utils.default_settings.py
• django.utils.global_settings.py
• django.conf.default_settings.py
• django.conf.global_settings.py

Q27. Which variable name is best according to PEP 8 guidelines?

• numFingers
• number-of-Fingers
• number_of_fingers
• finger_num

Q28. A project has accumulated 500 migrations. Which course of action would you pursue?

• Manually merge your migration files to reduce the number
• Don’t worry about the number
• Try to minimize the number of migrations
• Use squashmigrations to reduce the number

Q29. What does an F() object allow you when dealing with models?

• perform db operations without fetching a model object
• define db transaction isolation levels
• use aggregate functions more easily
• build reusable QuerySets

Q30. Which is not a django filed type for integers?

• SmallIntegerField
• NegativeIntegerField
• BigAutoField
• PositiveIntegerField

Q31. Which will show the currently installed version?

• print (django.version)
• import django django.getVersion()
• import django django.get_version()
• python -c django –version

Q32. You should use the http method ** to read data and ** to update or create data

• read;write
• get; post
• post; get
• get; patch

Q33. When should you employ the POST method over GET for submitting data?

• when efficiency is important
• for caching data
• help your browser with debugging
• data may be sensitive

Q34. When to use the Django sites framework?

• if your single installation powers more than one site
• if you need to serve static as well as dynamic content
• if you want your app have a fully qualified domain name
• if you are expecting more than 10.000 users

Q35. Which infrastructure do you need:
title=models.charfield(max_length=100, validators=[validate_spelling])

• inizialized array called validators
• a validators file containing a function called validate_spelling imported at the top of model
• a validators file containing a function called validate imported at the top of model
• spelling package imported at the top of model

Q36. What decorator is used to require that a view accepts only the get and head methods?

• require_safe()
• require_put()
• require_post()
• require_get()

Q37. How would you define the relation between a book and an author – book has only one author.

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Q38. What is a callable that takes a value and raises an error if the value fails?

• validator
• deodorizer
• mediator
• regular expression

Q39. To secure an API endpoint, making it accessible to registered users only, you can replace the rest_framework.permissions.allowAny value in the default_permissions section of your settings.py to

• rest_framework.permissions.IsAdminUser
• rest_framework.permissions.IsAuthenticated
• rest_framework.permissions.IsAuthorized
• rest_framework.permissions.IsRegistered

Q40. Which command would you use to apply a migration?

• makemigration
• update_db
• applymigration
• migrate

Q41. Which type of class allows QuerySets and model instances to be converted to native Python data types for use in APIs?

• objectwriters
• serializers
• picklers
• viewsets

Q42. How should the code end?

• { percentage else percentage}
• {percentage endif percentage}
• Nothing needed
• {percentage end percentage}

Q43 Which code block will create a serializer?
from rest_framework import serializers
from .models import Planet

Q44 Which class allows you to automatically create a Serializer class with fields and validators that correspond to your model’s fields?

• ModelSerializer
• Model
• DataSerializer
• ModelToSerializer

Q45 Which command to access the built-in admin tool for the first time?

• django-admin setup
• django-admin runserver
• python manage.py createuser
• python manage.py createsuperuser

Q46. Virtual environments are for managing dependencies. Which granularity works best?

• you should set up a new virtualenv for each Django project
• They should not be used
• Use the same venv for all your Django work
• Use a new venv for each Django app

Q47. What executes various Django commands such as running a webserver or creating an app?

• migrate.py
• wsgi.py
• manage.py
• runserver

Q48. What do Django best practice suggest should be “fat”?

• models
• controllers
• programmers
• clients

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Linkedin Django Skills Assessment Answers 2022 Updated