Advanced
Database Management Systems
Q82 / 100
What is the Aries recovery algorithm?
Correct! Well done.
Incorrect.
The correct answer is B) A WAL-based recovery algorithm using analysis, redo (all operations from last checkpoint), and undo (uncommitted transactions) phases to ensure ACID recovery after crashes
B
Correct Answer
A WAL-based recovery algorithm using analysis, redo (all operations from last checkpoint), and undo (uncommitted transactions) phases to ensure ACID recovery after crashes
Explanation
ARIES (Algorithms for Recovery and Isolation Exploiting Semantics): uses WAL, steal/no-force buffer policy. Three phases: Analysis (determine dirty pages/active TXNs), Redo (redo from last checkpoint), Undo (roll back uncommitted TXNs).
Progress
82/100