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

❓ Quiz Question

Aug 12, 2026

Quiz: How do Amazon RDS Read Replicas improve database performance?

… handled by replica instances, freeing the primary database to handle write transactions.

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❓ Quiz Question

Aug 12, 2026

Quiz: What kind of database model is Amazon DynamoDB?

Amazon DynamoDB is a serverless NoSQL database designed for high-throughput applications requiring fast, predictable single-digit millisecond response times.

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❓ Quiz Question

Aug 30, 2026

Quiz: What is the purpose of defining <code>slots</code> in a Python class?

Defining __slots__ prevents the overhead of creating per-instance __dict__ dictionaries, significantly reducing memory consumption.

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❓ Quiz Question

Aug 30, 2026

Quiz: What is the purpose of a Database Index (e.g. B-Tree)?

Database Indexes dramatically reduce full table scans by creating sorted pointer trees for quick search execution.

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❓ Quiz Question

Aug 30, 2026

Quiz: How does DELETE differ from TRUNCATE in relational database management?

… individually with transaction log overhead; TRUNCATE resets data pages instantly without row triggers.

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❓ Quiz Question

Aug 30, 2026

Quiz: What is Database Normalization (e.g. Third Normal Form - 3NF)?

… organizes tables into logical entities to ensure data dependencies are properly maintained without redundant duplication.

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❓ Quiz Question

Aug 30, 2026

Quiz: What is Database Sharding?

Database Sharding splits dataset rows across distinct database nodes based on a shard key to overcome single-node resource limits.

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❓ Quiz Question

Aug 30, 2026

Quiz: What is the purpose of a Database Connection Pool?

Connection Pooling reuses established database TCP handles, eliminating latency caused by constant handshake negotiations.

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