A national e-services database must keep running if its main server fails. A standby server receives every change through replication. What does this provide, and what does it not?
Une base nationale de services en ligne doit continuer à fonctionner si son serveur principal tombe en panne. Un serveur de secours reçoit chaque modification par réplication. Qu'apporte ce dispositif, et que n'apporte-t-il pas ?
Answers
AProtection against every possible problem, so backups are no longer neededUne protection contre tous les problèmes possibles : les sauvegardes ne sont plus nécessaires
BFaster queries on the main server onlyDes requêtes plus rapides sur le serveur principal uniquement
CQuick failover if the primary fails, but deletions replicate tooUne bascule rapide si le principal tombe, mais les suppressions sont aussi répliquées
DAutomatic removal of duplicate recordsLa suppression automatique des doublons
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