Developing Applications with SQL, Databases, and Django Quiz Answers

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Developing Applications with SQL, Databases, and Django Week 01 Quiz Answers

Quiz : Graded Quiz: Introduction to Databases Quiz Answer

Q1. Which of the following statements are correct about databases?

A database is a repository of data
There are different types of databases – Relational, Hierarchical, NoSQL, etc.
A database can be populated with data and be queried
All of the above

Q2. A database stores data in tabular form only. True or False?

True
False

Q3. In a library entity-relationship data model, a book is an example of _____ and the book’s title, edition, and publication date are examples of _______.

an attribute, entities
an entity, attributes
a row, columns
an entity, properties

Q4. Which of the following statements about a database is/are correct?

A database is a logically coherent collection of data with some inherent meaning
Data can only be added and queried from a database but not modified
Only SQL can be used to query data in a database
All of the above

Q5. The primary key of a relational table uniquely identifies each row in a table. True or False?

True
False;

Developing Applications with SQL, Databases, and Django Week 02 Quiz Answers

Graded Quiz: ORM – Bridging the Gap Between the Real World and Relational Model Quiz Answers

Q1. Which of the following is a benefit of using ORM?

Easier to debug
Speeds up application development
Increases performance
Removes data access complexity from application code

Q2. When you create an object (an instance of a class) in Django, what does it represent?

Table cell
Table column
Table row;
Database table

Q3. What does Django create when you create a forward relationship?

Comparative clause
Django doesn’t automatically create anything
Backward access
Explicit reference

Q4. To delete() records in a database, you call the Delete method on which objects?

Filter chain or primitive field
Model object or QuerySet
Child object or lookup parameter
Foreign Key field or Many-to-many field

Q5. What is the main reason ORM was invented?

Bridge the gap between OOP and SQL
Promote SQL;
Utilize methods
Use a different set of APIs for each database

Q6. Multi-table inheritance is like which relationship?

Many-to-many
One-to-one
One-to-many
Many-to-one

Q7. What method would you use to create a subset of database records?

Add
Save
Filter
Get

Q8. How do you specify what happens to related objects when an object is deleted?

delete_related
on_delete
Delete foreign key
Protect

Q9. Django only requires that model relationships be defined on one side. What is this called?

Related object
Child object
Singular access
Forward access;

Developing Applications with SQL, Databases, and Django Week 03 Quiz Answers

Graded Quiz: Full-stack Django Development Quiz Answers

Q1. What else does the Django template contain besides Python code?

Static HTML elements
Markdown elements
Dynamic HTML elements
XML elements

Q2. Three files are created by Django after you’ve created a project. Which of these files is a command-line interface used to interact with the Django project?

urls.py
settings.py
access.py;
manage.py

Q3. For the onlinecourse example, when registering the course and instructor models in the Django admin site, you would write and run “admin.site.register(Course)” and what other code statements?

admin.site.register(App)
admin.site.register(Admin)
admin.site.register(Superuser)
admin.site.register(Instructor)

Q4. When you map a URL to the course view, what file do you add path objects to?

manage.py
config.py
settings.py
urls.py

Q5. Django template files display content, such as course names and descriptions. How is the content displayed?

Plain text;
HTML
XML
Markdown

Q6. Which is one of the differences between the Django MVT and the MVC design pattern?

MVC has a Model
There is no difference
MVT has a View
The Django framework or Django server itself acts as controller

Q7. What two development tasks need to be performed to manage and determine which data will be presented to the UI?

Access data and build tables
Model data and create views
Sort data and sort views
Control the project

Q8. Which command is used in the Django Admin video to start the server?

python manage.py run;
python manage.py startDjango
python manage.py runserver
python manage.py startserver

Q9. Django functions, like View, accept arguments as input and return something. Typically, View needs an HTTP request object as the first argument. What does this request object contain?

Python commands
Python scripts
Django static files
Read-only HTTP metadata

Q10. Django template file structure sometimes has two files created with the same name. How do you ensure Django points to the correct file?

Add an identifier
Note the differences
Name spacing
Add metadata;

Developing Applications with SQL, Databases, and Django Week 04 Quiz Answers

Graded Quiz: Consolidate and Deploy Your Django App Quiz Answers

Q1. Django class-based view needs to be mapped with a URL pattern, almost like configuring the URL for the function-based view. The only difference is you need to specify:

The as_class method
The as_view function
The view_base method
The as_config function

Q2. Username and password can be received from a user via a login HTML template. Which HTTP method is used to sent username/password to the onlinecourse login view, in order to authenticate the user?

GET request
DELETE request;
POST request
None of the above

Q3. In the Django Bootstrap video, a course index page is designed that contains courses represented as cards. The multiple course cards are then added to a container. How are the multiple course cards managed?

Shuffled
Wrapped in a card deck
Placed in a list
Added to a table

Q4. Django provides a default staticfiles app that collects all static files in a single directory. You can move all static files to this directory when you deploy your app to a production web server. There are several steps to do this. What call do you make in the last step?

Run “importstatic” command line
STATIC_URL
STATIC_ROOT
Run ‘collectstatic’ command line

Q5. ASGI is another web server interface that Django apps support. What is the main difference between WSGI and ASGI?

There is no difference
WSGI supports Python
ASGI supports Python
ASGI supports asynchronous code

Q6. Which type of view was created to address view extensibility and reusability?

Method-based view
HTTP-based view
Class-based view
Function-based view

Q7. Does authorization occur before, after, or during the authentication process?

Before authentication
After authentication
During authentication
Authentication doesn’t affect authorization

Q8. How can you use Bootstrap CSS style classes without manually downloading and importing it?

Copy & paste the CSS style classes
You must download Bootstrap
Add a link to the latest Bootstrap version into the head element of your HTML template
Link to the Bootstrap web page before you develop your webpage

Q9. Django apps can have app-specific static files but can also have external static files. Where do you define the directories for external static files, so you can find them?

In the STATICFILES_DIRS list in settings.py file
In the PROPERTIES list in manage.py
In EX_DIRS list in settings.py file
In STATIC list in manage.py file

Q10. WSGI is the main Python standard for communicating between web servers and applications. To make Django apps work with WSGI the startproject command line creates a file that declares an application callable by default. What is this file named?

wsgi.py
sgi.py
django.py
giws.py

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