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000-349 · Question #40
000-349 Question #40: Real Exam Question with Answer & Explanation
The correct answer is C. Map Trace. Map Trace has the greatest negative impact on WTX map performance because it records detailed execution data for every card, rule, and data element processed.
Question
Which setting has the most negative impact on map performance?
Options
- AMap Retry
- BAudit Log
- CMap Trace
- DBackup
Explanation
Map Trace has the greatest negative impact on WTX map performance because it records detailed execution data for every card, rule, and data element processed.
Common mistakes.
- A. Map Retry only incurs overhead when a map actually fails and a retry is attempted, so it has no impact on successful map executions and minimal overall performance cost.
- B. Audit Log records only summary-level information at map start and end, producing far fewer log writes than Map Trace and therefore causing a much smaller performance impact.
- D. Backup copies input and output data for recovery purposes but involves a single file operation per map execution, which is far less overhead than the continuous per-rule logging performed by Map Trace.
Concept tested. WTX map performance impact of trace settings
Reference. https://www.ibm.com/docs/en/wte/8.4.0?topic=maps-map-trace
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