Which two activities are NOT supported by the Data Recovery Advisor?() A. Diagnose and repair a data file corruption offline. B. Diagnose and repair a data file corruption online. C. Diagnose and repair failures on a standby database. D. Recover from failures in the Real Application Cluster (RAC) environment.
举一反三
- What are the two main functions of transaction management in OLTP systems? A: Information prediction B: Concurrency control C: Data collection D: Recovery from failures
- Which of the four methods of data collection is involved when a person retrieves data from an online database?
- A contains a collection of interrelated data, a set of programs to access the data and an environment that is both convenient and efficient to use. A: DBMS B: Database C: Database application D: Data Schema
- Detecting and correcting data in a database or file that are incorrect, incomplete, improperly formatted, or redundant is called: A: defragmentation. B: data scrubbing. C: data auditing. D: data optimization.
- In the file open modes, the string "rb" indicates . A: opening an existing binary file only for data reading. B: opening a text file only for data writing. C: opening an existing text file only for data reading. D: opening a binary file only for data writing.