Oracle Database Architecture and Fundamentals
Covers Oracle Database architecture including memory structures (SGA, PGA), background processes, logical and physical storage, and RMAN backup fundamentals.
Questions
Which of the following is a centralised container where the data is stored?
- Read only
- Extent
- Oracle instance
- Instance creation
- Oracle database
The contents of which memory components of the system global area are shared by multiple users?
- Instance creation
- Stream pool
- SQL work area
- Shared pool
- Force
Which of the following memory components of the program global area holds a session's variables and session-related information?
- Stream pool
- ABORT
- Session memory
- SQL work area
- Instance creation
Which of the following memory components of the system global area is used for handling large input/output requests of server processes?
- Instance creation
- Large pool
- SQL work area
- Stream pool
- Read only
During which of the following phases of 2-phase locking mechanism, locks are only released?
- Compilation phase
- Shrinking phase
- Growing phase
- Two-very-phase
- Local agent
Which of the following features of the RMAN describes the contents of the backup sets that define which files are multiplexed?
- Proxy archived log backups
- Oracle flashback database
- Duplicate database
- Stream pool
- Disk topology and automatic performance tuning
Which of the following background processes writes modified blocks from the database buffer cache to the data files?
- Oracle server
- Log writer
- Job queue process
- Database writer
- Mounting the database
Which of the following is a set of extents allocated for a certain logical structure such as a table?
- Duplicate database
- Segment
- Database block
- PFILE
- Views
The data of logical database structures such as tables and indexes is physically stored in the __________ files allocated for a database.
- read only
- archive
- data
- parameter
- instance creation
Which of the following background processes writes modified blocks from the database buffer cache to the datafiles?
- Oracle server
- Log writer
- Job queue process
- Database writer
- Mounting the database
Which of the following interfaces is an alternative method for issuing commands to RMAN and receiving the output from those commands?
- Media management application
- Member method
- Command file
- RMAN pipe interface
- Two-very-safe
During which of the following phases, RMAN sends the remote procedure calls to the target database and remotes their progress?
- Image copy
- Growing phase
- Compilation phase
- Execution phase
- Two-very-safe
Which of the following logical storage structures usually facilitates security, performance or the availability of database objects such as tables and indexes?
- Mounting the database
- Extent
- Oracle instance
- Archive files
- Tablespace
Which of the following RAID levels refers to mirrored set without parity?
- Registration
- RAID level 5
- RAID level 6
- Duplicate database
- RAID level 1
Which of the following classifications of the degree of durability has the problem that updates of a committed transaction may not have made it to the backup site, when the backup site takes over processing?
- Exclusive mode
- Two-very-safe
- Growing phase
- One-safe
- Detection of failure