《数据安全法》正式发布，数据安全工作首次升至国家安全最高监管层级6月11日，经过十三届全国人大常委会第二十九次会议通过的《数据安全法》对外公布，将于2021年9月1日起施行。这是我国第一部有关数据安全的专门法 ...

MySQL数据库备份分为逻辑备份和物理备份两大类，犹豫到底用那种备份方式的时候先了解下它们的差异： 逻辑备份的特点是：直接生成SQL语句，在恢复的时候执行备份的SQL语句实现数据库数据的重现。 物理备份的特点是 ...

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Q264. You plan to create a new PDB by copying PDB$SEED. Which two requirements ensure a successful creation?A. A default service for the new PDB name must already exist.B. The CDB, which will contain ...

Q338. RMAN MMIYou take your database backups by using the RMAN media management interface (MMI).Which two are true about the use of the RMAN MMI?A)You can use it to create backup sets for file system ...

Q288.Which three are true about RMAN catalog metadata when opening a registered target database by using the RESETLOGS option? Archive log backups taken for target database before RESETLOGS can be us ...

Q270. Which thee are true about uniled auitng in full mode A. Audit records are created for non-sYs users.B. The unified audit trail is written to a read -only table.C. Audit records are created for C ...

Q249. Which three are true about Transparent Data Encryption(TDE)?A. Master encryption keys are managed by Oracle Database Vault.B. It encrypt only data on the client.C. It can encrypt data at the col ...