LinkedIn Django Assessment Answers 2022

LinkedIn Django Assessment Answers 2022 –Django Skill Badge: Django LinkedIn Test Answers: In this post you will get all the correct answers of LinkedIn Django quiz answers given by the experts.

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LinkedIn Django Assessment Questions and 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
[x] django.middleware.cache.AcceleratedCacheMiddleware

Q2. In which programming language is Django written?

[ ] C++
[ ] Java
[x] 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
[x] clean(); Field

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),
url(r'shows/<slug:episode_name>/', views.episode_name)

path('shows/<int:season>/<int:episode>/', views.episode_number),
path(r'shows/<slug:episode_name>/', views.episode_name)

path('shows/<int:season>/<int:episode>', views.episode_number),
path(r'shows/<slug:episode_name>/', views.episode_number)

url(r'^show/(?P<season>[0-9]+)/(?P<episode>[0-9]+)/$', views.episode_number),
url(r'^show/(?P<episode_name>[\w-]+)/', views.episode_name

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

[x] 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.
[x] 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.
[x] 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
[x] model
[ ] database
[ ] view

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

[ ] Rainbow {}
[ ] export Rainbow:
[x] 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
[x] pip install -r requirements.txt
[ ] pip install Django

Q11. Which best practice is NOT relevant to migrations?

[x] 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
[x] 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?

[x] 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
[x] abstract
[ ] dynamic

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

[ ] template syntax
[x] HTML and template syntax
[ ] Python, HTML, and template syntax
[ ] Python and template syntax

Q16. How would you define the relationship between a star and a constellation in a Django model?

class Star(models.Model):
name = models.CharField(max_length=100)
class Constellation(models.Model):
stars = models.ManyToManyField(Star)

class Star(models.Model):
constellation = models.ForeignKey(Constellation, on_delete=models.CASCADE)
class Constellation(models.Model):
stars = models.ForeignKey(Star, on_delete=models.CASCADE)

class Star(models.Model):
name = models.CharField(max_length=100)
class Constellation(models.Model):
stars = models.OneToManyField(Star)

class Star(models.Model):
constellation = models.ManyToManyField(Constellation)
class Constellation(models.Model):
name = models.CharField(max_length=100)

Q17. Which is NOT a valid step in configuring your Django 2.x instance to serve up static files such as images or CSS?

[x] 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}.

Q18. 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.
[x] Use RequestContext.

Q19. 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.
[x] 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.

Q20. 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?

[x] actions
[ ] admin
[ ] mezcal
[ ] inlines

Q21. Why are QuerySets considered “lazy”?

[ ] The results of a QuerySet are not ordered.
[x] 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.

Q22. 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?

[x] 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.

Q23. Which function of Django’s Form class will render a form’s fields as a series of

tags?

[ ] show_fields()
[x] as_p()
[ ] as_table()
[ ] fields()

Q24. 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.
[x] all of these answers.
[ ] Run Django’s test suite.

Q25. 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
[x] django.conf.global_settings.py

Q26. Which variable name is best according to PEP 8 guidelines?

[ ] numFingers
[ ] number-of-Fingers
[x] number_of_fingers
[ ] finger_num

Q27. 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
[x] Use squashmigrations to reduce the number

Q28. What does an F() object allow you when dealing with models?

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

Q29. Which is not a Django filed type for integers?

[ ] SmallIntegerField
[x] NegativeIntegerField
[ ] BigAutoField
[ ] PositiveIntegerField

Q30. Which will show the currently installed version?

[ ] print (django.version)
[ ] import django django.getVersion()
[x] import django django.get_version()
[ ] python -c django –version

Q31. You should use the http method ___ to read data and ___ to update or create data

[ ] READ; WRITE
[x] GET; POST
[ ] POST; GET
[ ] GET; PATCH

Q32. When should you employ the POST method over GET for submitting data?

[ ] when efficiency is important
[ ] when you want the data to be cached
[ ] when you want to use your browser to help with debugging
[x] when the data in the form may be sensitive

Q33. When to use the Django sites framework?

[x] 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

Q34. Which infrastructure do you need:

title=models.charfield(max_length=100, validators=[validate_spelling])

[ ] inizialized array called validators
[x] 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

Q35. What decorator is used to require that a view accepts only the get and head methods?

[x] require_safe()
[ ] require_put()
[ ] require_post()
[ ] require_get()

Q36. How would you define the relation between a book and an author – book has only one author.

class Author (models.model):
book=models.foreignkey(Book,on_delete=models.cascade)
class Book(models.model):
name=models.charfield(max_length=100)

class Author (models.model):
name=models.charfield(max_length=100)
class Book(models.model):
author=models.foreignkey(Author,on_delete=models.cascade)

class Author (models.model):
name=models.charfield(max_length=100)
class Book(models.model):
author=models.foreignkey(Author)

class Author (models.model):
name=models.charfield(max_length=100)
class Book(models.model):
author=models.foreignkey(Author,on_delete=models.cascade)

class Author (models.model):
name=models.charfield(max_length=100)
class Book(models.model):
author=Author.name

Q37. What is a callable that takes a value and raises an error if the value fails?

[x] validator
[ ] deodorizer
[ ] mediator
[ ] regular expression

Q38. 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
[x] rest_framework.permissions.IsAuthenticated
[ ] rest_framework.permissions.IsAuthorized
[ ] rest_framework.permissions.IsRegistered

Q39. Which command would you use to apply a migration?

[ ] makemigration
[ ] update_db
[ ] applymigration
[x] migrate

Q40. Which type of class allows QuerySets and model instances to be converted to native Python data types for use in APIs?

[ ] objectwriters
[x] serializers
[ ] picklers
[ ] viewsets

Q41. How should the code end?

{ percentage if spark >= 50 percentage }
Lots of spark
{percentage elif spark == 42 percentage}

[ ] { percentage else percentage}
[x] {percentage endif percentage}
[ ] Nothing needed
[ ] {percentage end percentage}

Q42. Which code block will create a serializer?

from rest_framework import serializers
from .models import Planet

class PlanetSerializer(serializers.ModelSerializer):
class Meta:
model=Planet
fields=('name','position', 'mass', 'rings')

from rest_framework import serializers
from .models import Planet
class PlanetSerializer():
class Meta:
fields=('name','position', 'mass', 'rings')
model=Planet

from django.db import serializers
from .models import Planet
class PlanetSerializer(serializers.ModelSerializer):
fields=('name','position', 'mass', 'rings')
model=Sandwich

from django.db import serializers
from .models import Planet
class PlanetSerializer(serializers.ModelSerializer):
class Meta:
fields=('name')
model=Planet

Q43. Which class allows you to automatically create a Serializer class with fields and validators that correspond to your model’s fields?

[x] ModelSerializer
[ ] Model
[ ] DataSerializer
[ ] ModelToSerializer

Q44. Which command to access the built-in admin tool for the first time?

[ ] django-admin setup
[ ] django-admin runserver
[ ] python manage.py createuser
[x] python manage.py createsuperuser

Q45. Virtual environments are for managing dependencies. Which granularity works best?

[x] 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

Q46. What executes various Django commands such as running a webserver or creating an app?

[ ] migrate.py
[ ] wsgi.py
[x] manage.py
[ ] runserver

Q47. What do Django best practice suggest should be “fat”?

[x] models
[ ] controllers
[ ] programmers
[ ] clients

Q48. Which is not part of Django’s design philosophy?

[ ] Loose Coupling
[ ] Less Code
[ ] Fast Development
[x] Implicit over explicit

Q49. What is the result of this template code?

{{"live long and prosper"|truncate:3}}

[x] live long and …
[ ] live long and
[ ] a compilation error
[ ] liv

Q50. When does this code load data into memory?

1 sandwiches = Sandwich.objects.filter(is_vegan=True)
2 for sandwich in sandwiches:
3   print(sandwich.name + " - " + sandwich.spice_level)

[ ] line 1
[x] It depends on how many results return by query.
[ ] It depends on cache.
[ ] line 2

Q51. You are building a web application using a React front end and a Django back end. For what will you need to provision?**

[ ] an NGINX web server
[ ] a NoSQL database
[ ] a larger hard drive
[ ] CORS middleware

Q52. To expose an existing model via an API endpoint, what do you need to implement?**

[ ] an HTTP request
[ ] a JSON object
[ ] a query
[x] a serializer

Q53. How would you stop Django from performing database table creation or deletion operations via migrations for a particular model?**

[ ] Run the migrate command with --exclude=[model_name].
[ ] Move the model definition from models.py into its own file.
[x] Set managed=False inside the model.
[ ] Don’t run the migrate command.

Q54. what method can you use to check if form data has changed when using a form instance?

[x] has_changed()
[ ] its_changed()
[ ] has_updated()
[ ] None of This

Q55. What is WSGI?

[x] a server
[ ] an interface specification
[ ] a Python module
[ ] a framework

Q56. Which generic view should be used for displaying the tittles of all Django Reinhardt’s songs?

[ ] DetailView
[ ] TittleView
[ ] SongView
[x] ListView

Q57. Which statement is most accurate, regarding using the default SQLite database on your local/development machine but Postgres in production

[x] There’s less chance of introducing bugs since SQLite already works out the box
[ ] It’s fine, you just need to keep both instances synchronized
[ ] It’s a bad idea and could lead to issues down the road
[ ] It’s the most efficient way to build a project

Q58. Why might you want to write a custom model Manager?

[ ] to perform database queries
[ ] to set up a database for testing
[x] to modify the initial QuerySet that the Manager returns
[ ] to filter the results that a database query returns

Q59. In Django, what are used to customize the data that is sent to the templates?

[ ] models
[x] views
[ ] forms
[ ] serializers

Q60. To complete the conditional, what should this block of code end with?

% if sparles >= 50 %
  Lots of sparkles!
% elif sparkles == 42 %
  The answer to life, the universe, and everything!

[x] % endif %
[ ] Nothing else is needed.
[ ] % end%
[ ] % else %

Q61. When should you employ the POST method over the GET method for submitting data from a form?

[x] when the data in the form may be sensitive
[ ] when you want the data to be cached
[ ] when you want to use your browser to help with debugging
[ ] when efficiency is important

Q62. What is a callable that takes a value and raises an error if the value fails to meet some criteria?

[ ] mediator
[x] validator
[ ] regular expression
[ ] deodorizer

Q63. You are uploading a file to Django from a form and you want to save the received file as a field on a model object. You can simply assign the file object from_to a field of type__in the model.

[ ] request.META; FileField
[ ] request.FILES; BLOBField
[x] request.FILES; FileField
[ ] request.META.Files; CLOBField

Q64. What python module might be used to store the current state of a Django model in a file?

[x] pickle
[ ] struct
[ ] marshal
[ ] serialize

Q65. To add a new app to an existing Django project, you must edit the _ section of the _ file.

[ ] ALLOWED_HOSTS; settings.py
[ ] APPS; manage.py
[x] INSTALLED_APPS; settings.py
[ ] TEMPLATES; urls.py

Q66. Which is not a third-party package commonly used for authentication?

[ ] django-guardian
[ ] django-rest-auth
[ ] authtoken
[x] django-rest-framework-jwt

Q67. Which function in the django.urls package can help you avoid hardcoding URLS by generating a URL given the name of a view?

[ ] get_script_prefix()
[ ] redirect()
[x] reverse()
[ ] resolve()

Q68. Which is Fictional HTTP request method?

[ ] POST
[ ] PUT
[x] PAUSE
[ ] PATCH

Q69. Which helper function is not provided as a part of django.shortcuts package? ref-

[x] render_to_request()
[ ] render()
[ ] redirect()
[ ] get_object_or_404()

Reference

Q70. Which is a nonstandard place to store templates?

[x] at the root level of a project
[ ] inside the application
[ ] in the database
[ ] on Github

Q71. If you left the 8080 off the command python manage.py runserver 8080 what port would Django use as default?

[x] 8080
[ ] 80
[ ] 8000
[ ] It would fail to start

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