问答题

WhichtwostatementsaretrueregardingHealthMonitorchecksinOracleDatabase11g?()

A.HealthMonitorcheckscanbeusedtoscanthecontentsoftheredologandarchivelogsforaccessibilityandcorruption.
B.HealthMonitorcheckscanbeusedtoverifytheintegrityofdatabasefilesandreportfailuresifthesefilesareinaccessible,corruptorinconsistent.
C.HealthMonitorcheckscanbeusedtoverifythecontentsofdictionaryentriesforeachdictionaryobjectandfixitautomatically.
D.HealthMonitorchecksarealwaysinitiatedmanuallywhenthereissomecriticalerror.
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