Which statement is true about the Log Writer process? A. It writes when it receives a signal from the checkpoint process (CKPT). B. It writes concurrently to all members of multiplexed redo log groups. C. It writes after the Database Writer process writes dirty buffers to disk. D. It writes when a user commits a […]
Which two statements correctly describe the relationship between data files and logical database structures?
Which two statements correctly describe the relationship between data files and logical database structures? A. A segment cannot span data files. B. A data file can belong to only one tablespace. C. An extent cannot span data files. D. The size of an Oracle data block in a data file should be the same as […]
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 […]
You plan to create a database by using the Database Configuration Assistant (DBCA), with the followingspecifications:– Applications will connect to the database via a middle tier.– The number of concurrent user connections will be high.– The database will have mixed workload, with the execution of complex BI queries scheduled at night.Which DBCA option must you […]
What happens if a maintenance window closes before a job that collects optimizer statistics completes?
What happens if a maintenance window closes before a job that collects optimizer statistics completes? A. The job is terminated and the gathered statistics are not saved. B. The job is terminated but the gathered statistics are not published. C. The job continues to run until all statistics are gathered. D. The job is terminated […]
As a user of the ORCL database, you establish a database link to the remote HQ database such that all usersin the ORCL database may access tables only from the SCOTT schema in the HQ database. SCOTT’spassword is TIGER. The service mane “HQ” is used to connect to the remote HQ database.Which command would you […]
A user establishes a connection to a database instance by using an Oracle Net connection. You want to ensurethe following:1. The user account must be locked after five unsuccessful login attempts.2. Data read per session must be limited for the user.3. The user cannot have more than three simultaneous sessions.4. The user must have a […]
Examine the parameters for your database instance: You execute the following command:SQL> ALTER TABLESPACE undotbs1 RETENTION NOGUARANTEE;Which statement is true in this scenario? A. Undo data is written to flashback logs after 1200 seconds. B. Inactive undo data is retained for 1200 seconds even if subsequent transactions fail due to lack of space in the […]