Cookie-based sessions vs database sessions in Django - Practice Questions

Challenge - 5 Problems

🧠 Conceptual

intermediate

Difference in data storage location

Where is session data stored when using cookie-based sessions compared to database sessions in Django?

A Cookie-based sessions store all session data on the client inside cookies; database sessions store session data on the server in the database.

B Cookie-based sessions store session data in the database; database sessions store data inside cookies on the client.

C Both cookie-based and database sessions store session data only in server memory.

D Cookie-based sessions store session data in temporary files; database sessions store data in browser local storage.

💡 Hint

Think about where the session data physically lives in each method.

Cookie-based sessions keep all session data inside the user's browser cookies, while database sessions save session data on the server side in the database.

❓ component_behavior

intermediate

Session size limits impact

What happens if you try to store a large amount of data in a cookie-based session in Django?

A The data will automatically be split across multiple cookies without issues.

B The session data will be truncated or cause errors because cookies have size limits.

C The session data size is unlimited in cookie-based sessions.

D Django will store the extra data in the database automatically.

💡 Hint

Consider browser cookie size limits.

Cookies have size limits (usually around 4KB). Storing too much data in cookie-based sessions can cause truncation or errors.

🔧 Debug

advanced

Session data loss troubleshooting

A Django app using cookie-based sessions loses session data unexpectedly after a user logs in. Which of the following is the most likely cause?

A The session cookie is not marked as secure and is blocked by the browser.

B The database storing sessions is down.

C The session data exceeds the cookie size limit and is truncated.

D The server's cache is full.

💡 Hint

Think about cookie size limits and how that affects cookie-based sessions.

When session data is too large for cookies, it can be truncated, causing data loss in cookie-based sessions.

📝 Syntax

advanced

Configuring database sessions in Django

Which setting correctly configures Django to use database-backed sessions?

A SESSION_ENGINE = 'django.contrib.sessions.backends.db'

B SESSION_ENGINE = 'django.contrib.sessions.backends.signed_cookies'

C SESSION_ENGINE = 'django.contrib.sessions.backends.cache'

D SESSION_ENGINE = 'django.contrib.sessions.backends.file'

💡 Hint

Database sessions use the 'db' backend.

To use database sessions, set SESSION_ENGINE to 'django.contrib.sessions.backends.db'.

❓ state_output

expert

Session data persistence after server restart

In a Django app using database sessions, what happens to session data after the web server restarts?

A Session data persists only if the server cache is warmed up.

B Session data is lost because it is stored only in server memory.

C Session data is lost because cookies are cleared on server restart.

D Session data persists because it is stored in the database.

💡 Hint

Think about where the session data lives and what survives a server restart.

Database sessions store data in the database, which persists across server restarts.