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Certification Oracle de téléchargement gratuit pratique d'examen 1z1-133 1Z1-511 1z1-062, questions et réponses

NO.1 Which two statements are true about the logical storage structure of an Oracle database?A. An extent contains data blocks that are always physically contiguous on disk.B. An extent can span multiple segments,C. Each data block always corresponds to one operating system block.D. It is possible to have tablespaces of different block sizes.E. A data block is the smallest unit of I/O in data files.Answer: B,Dcertification Oraclecertification 1z1-062certification 1z1-062certification 1[...]