Teach Cloud - Cloud, DevOps, and Python Backend Development Blog

❓ Quiz Question

Aug 30, 2026

Quiz: What is the Django Debug Toolbar?

The Django Debug Toolbar helps developers analyze SQL query execution, template rendering, and performance bottlenecks during development.

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❓ Quiz Question

Aug 30, 2026

Django defaults to autocommit mode, but offers transaction.atomic() blocks for multi-statement transactional integrity.

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❓ Quiz Question

Aug 30, 2026

Custom Template Tags and Filters allow developers to execute specialized formatting or data fetching inside HTML templates.

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❓ Quiz Question

Aug 30, 2026

Django's TestCase creates a fresh test database (e.g. `test_db`), executing each test inside a transaction rolled back upon completion.

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❓ Quiz Question

Aug 30, 2026

makemigrations inspects `models.py` to compile SQL migration files; migrate applies pending migrations to the database.

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❓ Quiz Question

Aug 30, 2026

select_related uses SQL JOINs in a single query; prefetch_related executes separate lookups and performs Python-side joining for collections.

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❓ Quiz Question

Aug 30, 2026

null=True is database-related (storing NULL values); blank=True is validation-related (allowing empty inputs in forms).

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❓ Quiz Question

Aug 30, 2026

F() expressions reference model field values directly in database queries, preventing race conditions during atomic updates.

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