Committing a transaction
Flashing back a transaction
Recovering a failed transaction
Running a read-consistent query
Changing a tablespace status from READ ONLY to READ WRITE
第1题:
ENCRYPT_TS is an encrypted tablespace that contains tables with data. Which statement is true regarding the effect of queries and data manipulation language (DML) statements on the encrypted data in the tables?()
第2题:
Which two operations require undo data?()
第3题:
A. The data file backup is done with multiple channels
B. The data files is in the read-write mode after being backed up in the read only mode
C. The backup was taken after the data files was taken offline-normal or is in the read only mode
D. The data file backup complies with the back retention policy and the backup duplexing feature
第4题:
Your database contains a temporary tablespace, index tablespace, undo tablespace, and a read-only tablespace apart from the SYSTEM and SYSAUX tablespaces. If a media failure occurs resulting in the loss of any of these tablespaces, which tablespace is NOT required for the database to start?()
第5题:
One of the tablespaces is read/x7fonly in your database. The loss of all control files forced you to re/x7fcreate the control file. Which operation do you need to perform after re/x7fcreating the control file and opening the database?()
第6题:
Your database is running in NOARCHIVELOG mode with two online redo log files. The SALES table contains sales information for the organization. The SALES table belongs to the SALESTB tablespace. On Monday, you insert 10 rows into the SALES table. The current log sequence number is 14. You change the tablespace status from READ WRITE to READ ONLY for the SALESTB tablespace. You shut down the database and take a backup of the SALESTB tablespace. On Tuesday, you start the database. You change the status for the SALESTB tablespace from READ ONLY to READ WRITE. You insert 10 more rows into the SALES table and shut down the database. The current log sequence number is 15. When you try to open the database on Wednesday morning, you discover that the SALESTB tablespace was lost because of a media failure. Which of the following options is true about recovering the SALES table?()
第7题:
You have a read-only tablespace on read-only media. You want to perform a media recovery on the existing data files, but using a backup control file. The backup control file indicates that the status of the read-only tablespace was read/write when the control file was backed up. What should you consider?()
第8题:
A. The data file backup is done with multiple channels
B. The data files is in the read-write mode after being backed up in the read only mode
C. The backup was taken after the data files was taken offline-normal or is in the read only mode
D. The data file backup complies with the back retention policy and the backup duplexing feature
第9题:
Due to media failure you lost one of the data files belonging to the USERS tablespace, and the tablespace is not available to use. Which statement regarding the status of the database is true?()
第10题:
You have a read/x7fonly tablespace on read/x7fonly media. You want to perform a media recovery on the existing data files, but using a backup control file. The backup control file indicates that the status of the read/x7fonly tablespace was read/write when the control file was backed up. What should you consider?()