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Django quiz

By : Shabda Raaj

A quick django quiz. Answers available tomorrow. Get it as a text file (django-quiz) or on google docs or read below.

### Easy

1. You have a class defined as

    class Post(models.Model):
        name = models.CharField(max_length=100)
        is_active = models.BooleanField(default=False)

You create multiple objects of this type. If you do
Post.objects.get(is_active=False),

what exceptions is raised?

a. MultipleObjectsReturned
b. ManyObjectsReturned
c. SyntaxError
d. MultipleModelReturned
e. ManyModelReturned

2. Where is the function render_to_response defined?

a. django.views
b. django.shortcuts
c. django.templates
d. django.contrib.templates
e. django.contrib.shortcuts

3. What is the default name for the table created for model named Post
in application blog

a. post_blog
b. blog_post
c. postblog
d. blogpost
e. Postblog

4. How do you send a 302 redirect using django?

a. return HttpRedirectResponse()
b. return HttpResponseRedirect()
c. return HttpRedirectResponse(permanent=True)
d. return HttpResponseRedirect(permanent=True)
e. return HttpRedirectResponse

5. In django.contrib.auth, Users passwords are kept in what form?
a. Plain text
b. Hashed
c. Encrypted
d. Hashed then encrypted
3. Encrypted then hashed

6. Which of the following is correct way to find out if a request uses
HTTP POST method?

a. request.is_post() == True
b. request.METHOD == 'post'
c. request.METHOD == 'POST'
d. request.method == 'post'
e. request.method == 'POST'

7. Generic views have access to request context.

a. True
b. False
c. Default is True but can be set to False by GENERIC_REQUEST_CONTEXT in settings.
d. Default is False but can be set to True by GENERIC_REQUEST_CONTEXT in settings.
e. Can not be determined without extra information.

8. The current released version of Django is

a. 0.96
b. 1.0
c. 1.1
d. 1.2
e. Vyper logix 2.0

9. Which of these is a correct context_processor?

a.

def featured_posts(request):
    return Post.objects.filter(is_featured=True)

b.

def featured_posts(request):
    return {'featured_posts': Post.objects.filter(is_featured=True)}

c.

def featured_posts(request, response):
    return Post.objects.filter(is_featured=True)

d.

def featured_posts(request, response):
    return {'featured_posts': Post.objects.filter(is_featured=True)}

e.     
def featured_posts(request, response):
    response.write('featured_posts'= Post.objects.filter(is_featured=True))

10. Which of the following is a valid Middleware?

a.

class LatestPostMiddleware:
    def process_request(request):
        request.latest_post = Post.objects.latest()

b.

class LatestPostMiddleware(django.middlewares.BaseMiddleWare):
    def process_request(request):
        request.latest_post = Post.objects.latest()

c.

class LatestPostMiddleware(django.middlewares.BaseMiddleWare):
    def process_request(request):
        return {'latest_post': Post.objects.latest()}

d.

class LatestPostMiddleware():
    def process_request(request):
        return {'latest_post': Post.objects.latest()}

e.

class LatestPostMiddleware():
    def process_request(request):
        request.write('latest_post'= Post.objects.latest())

#Moderate

11. In the model below which line can be removed for the class to work

class Post(models.Model):
    name = models.CharField(max_length = 100)#Line 1
    desc = models.TextField()#Line 2
    post = models.ForeignKey(Blog)#Line 3
    blog = models.ForeignKey(Blog)#Line 4

a. Line 1
b. Line 2
c. Line 3
d. Line 4
e. Either of line 3 or 4

12. Who can access the admin site in Django?

a. user with is_super_user True
b. user with is_staff True
c. user with is_admin True
d. Either of a or b
e. Either of a, b, c

13. Which of the following code is closest to login_required decorator in Django?

a.

def login_required2(request):
    if request.user.is_authenticated():
        return True
    else:
        return False

b.

def login_required2(request, view_func):
    def check_login(request):
        if request.is_authenticated() and request.has_permissions(request.REQUIRED_PERMISSIONS):
            return view_function(request)
        else:
            return HttpResponseRedirect('/login/')
    return check_login(view_func)

c.

def login_required2(request, view_func):
    def check_login(request):
        if request.is_authenticated():
            return view_function(request)
        else:
            return HttpResponseRedirect('/login/')
    return check_login(view_func)

d.

def login_required2(view_func):
    def new_func(request):
        if request.user.is_authenticated():
            return view_func(request)
        else:
            return HttpResponseRedirect('/login/')
    return new_func

e.

def login_required2(view_func):
    def new_func(request):
        if request.user.is_authenticated() and request.has_permissions(request.REQUIRED_PERMISSIONS):
            return view_func(request)
        else:
            return HttpResponseRedirect('/login/')
    return new_func

14. Which of the following is a valid method to model Many to many relation ship in Django?

a.

class Foo(models.Model):
    bar = models.ManyToManyField(Bar)

class Bar(models.Model):
    foo = models.ManyToManyField(Foo)

b.

class Foo(models.Model):
    bar = models.ForeignKey(Bar)

class Bar(models.Model):
    foo = models.ForeignKey(Foo)

c.

class Foo(models.Model):
    bar = models.ManyToManyField(Bar)

class Bar(models.Model):
    pass

d. both B and C

e. All a, b, c

15. Which of the following is not included by default in TEMPLATE_CONTEXT_PROCESSORS

a. django.core.context_processors.auth
b. django.core.context_processors.debug
c. django.core.context_processors.i18n
d. django.core.context_processors.media
e. django.core.context_processors.request

16. Which of these is the currect way to validate uniqueness of a field named "slug" in a form
subclassing django.form.Forms.

a.

def clean(self):
    try:
        Post.objects.get(slug = self.cleaned_data['slug'])
        raise forms.Error(ValidationError, 'This slug already exists')
    except Post.DoesNotExist:
        return self.cleaned_data

b.

def clean(self):
    try:
        Post.objects.get(slug = self.cleaned_data['slug'])
        raise ValidationError('This slug already exists')
    except Post.DoesNotExist:
        return self.cleaned_data

c.

def clean_slug(self):
    try:
        Post.objects.get(slug = self.cleaned_data['slug'])
        raise forms.Error(ValidationError, 'This slug already exists')
    except Post.DoesNotExist:
        return self.cleaned_data

d.

def clean_slug(self):
    try:
        Post.objects.get(slug = self.cleaned_data['slug'])
        raise ValidationError('This slug already exists')
    except Post.DoesNotExist:
        return self.cleaned_data

e.

17. To add custom commands to your project setup, you need to,

1. Add management/command/commandname.py to your django app.
2. Add management/command/commandname.py to your django project.
3. Add command/commandname.py to your django app.
4. Add command/commandname.py to your django project.
5. Add management/command/manage.py to yout django project.

18. You want to enable caching for Django pages for AnonymousUser, which of these
is a valid way to do this.

a.

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.middleware.cache.CacheMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
)

b.

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.cache.CacheMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
)

c.

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.middleware.cache.CacheMiddleware',
)

d.

MIDDLEWARE_CLASSES = (
    'django.middleware.cache.CacheMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
)

e.

MIDDLEWARE_CLASSES = (
    'django.middleware.cache.CacheMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
)

19.

Consider the urlconf given below

    from django.conf.urls.defaults import *

    urlpatterns = patterns('news.views',
        (r'^articles/2003/$', 'year_archive_2003'),
        (r'^articles/(\d{4})/', 'year_archive'),
        (r'^articles/2003/(\d{2})/$', 'month_archive_2003'),
        (r'^articles/(\d{4})/(\d{2})/', 'month_archive'),
        (r'^articles/(\d{4})/10/', 'month_archive_october'),
    )
What view is called when accessing /articles/2003/10/

a. year_archive_2003
b. year_archive
c. month_archive_2003
d. month_archive
e. month_archive_october

20.

Consider the urlpatterns.

    urlpatterns = patterns('blogapp.views',
        (r'^list/(?P<year>\d{4})/(?P<month>[a-z]{3})/$','archive_month'),
    )

Which if the following is a valid view function which will be called on accesing
/list/2009/jun/

a. def archive_month(request):
        ...

b. def archive_month(request, *args):

c. def archive_month(request, **kwargs):

d. def  archive_month(request, year, month,):

e. Both c and d

# Hard

None yet

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Topics : django tips meta

Comments

Dougal Matthews

Should 'false' in the first question have a capital F or not?

commmenttor
Xiong Chiamiov 3rd Dec., 2009

These questions really have nothing to do with being a good Django developer. Sure, I happen to remember where render_to_response is, but if I didn't, so what? That's 5 seconds in Google. And "Which of the following is not included by default in TEMPLATE_CONTEXT_PROCESSORS"? Really? One of the primary reasons that many of us use Django (and Python) is that explicitness is valued; if I want to know which template context processors are enabled by default, I just look at the damn list.

I suppose this is just fun and games, and I shouldn't be so serious about it, but it just struck me the wrong way.

commmenttor
Mauricio Q.

Can't wait for Django Certifications :P

commmenttor
shabda

@2 Xiong, Yes, but you cant reeally ask *imlement me ...* in a multiple choice questions. Though in my defence I have tried making the questions later more represntative of actual skills ...

commmenttor
shabda

@Dougal ah ...

commmenttor
sakura hasegawa

Has anyone heard of business catalyst? It's an application that allows build and manage websites. It's actually pretty cool and it recently got acquired by Adobe so that makes things even better. I'm learning about it now through different webinars. You should give it a check! :)

commmenttor
Nancy


Excellent content! keep on posting this kind of useful articles. Thanks for sharing such an informative post.Web Development

commmenttor
Nancy


Excellent content! keep on posting this kind of useful articles. Thanks for sharing such an informative post.Web Development

commmenttor
Web Development


Excellent content! keep on posting this kind of useful articles. Thanks for sharing such an informative post.Web Development

commmenttor

Reactions

uswaretech

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