NCP-DB-6.10 · Question #202
An administrator needs to capture the database transaction logs. Which Time Machine operation does NDB use to satisfy this requirement?
The correct answer is C. Log Catch-up. To capture database transaction logs in NDB, the Log Catch-up operation within the Time Machine is used. Log Catch-up retrieves and applies transaction logs (e.g., PostgreSQL WAL, SQL Server logs) to a snapshot, ensuring the database can be restored to a specific point in time…
Question
An administrator needs to capture the database transaction logs. Which Time Machine operation does NDB use to satisfy this requirement?
Options
- AWrite-Ahead Logging
- BLog Flush
- CLog Catch-up
- DSnapshots
How the community answered
(41 responses)- A2% (1)
- B2% (1)
- C90% (37)
- D5% (2)
Explanation
To capture database transaction logs in NDB, the Log Catch-up operation within the Time Machine is used. Log Catch-up retrieves and applies transaction logs (e.g., PostgreSQL WAL, SQL Server logs) to a snapshot, ensuring the database can be restored to a specific point in time. This operation bridges gaps between snapshots by incorporating log data, maintaining a continuous recovery chain.
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