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Database Engineering & Storage Systems
Connectivity & ODBC
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Chapter Quiz: Connectivity & ODBC
Mastery Assessment: Connectivity & ODBC
Complete this assessment with 100% score to master this chapter.
01
What is 'Connection Pooling' and why is it used?
Grouping multiple databases into one.
Maintaining a set of reusable, pre-opened database connections to reduce the latency of opening new connections.
A security feature that hides the IP address.
A way to share data between different databases.
02
What is a 'Database Wire Protocol'?
A physical cable used to connect servers.
The binary message format used by a driver to communicate SQL commands and results over a network to the database engine.
A legal document for data privacy.
A type of fiber-optic connection.
03
What is the primary benefit of using a 'Sidecar Proxy' like PgBouncer in Kubernetes?
It acts as a firewall for the app.
It offloads connection pooling and authentication from the application code, allowing the app to scale without overwhelming the database.
It replaces the database entirely.
It translates SQL into Python.
04
Why is 'Exponential Backoff' critical for database connectivity?
It makes the database faster.
It prevents a 'Thundering Herd' effect where many clients simultaneously retry failed connections, potentially crashing the recovering database.
It is a requirement for all SQL queries.
It encrypts the connection string.
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