多项选择题X 纠错
A.Each segment contains one or more extents.
B.Multiple tablespaces can share a single data file.
C.A data block is the smallest unit of input/output (I/O) in data files.
D.It is possible to have tablespaces of different block sizes in a database.
E.Each data block in the database always corresponds to one operating system block.
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单项选择题
A.System monitor (SMON)
B.Process monitor (PMON)
C.Memory manager process (MMAN)
D.Manageability Monitor process (MMON)
多项选择题
A.It is possible to have multiple database writers in an Oracle instance.
B.It writes dirty buffers, if any, to data files whenever a checkpoint occurs.
C.It writes dirty buffers, if any, to data files whenever a transaction commits.
D.It writes dirty buffers, if any, to data files before the log writer (LGWR) writes.
单项选择题
A.Checkpoint (CKPT)
B.Process Monitor (PMON)
C.Archiver Processes (ARCn)
D.Recoverer Process (RECO)
E.Memory Manager process (MMAN)
单项选择题
A.Checkpoint (CKPT): 1, 2, 5
B.System Monitor (SMON): 1, 6
C.Process Monitor (PMON): 4, 6, 7
D.Database Writer (DBWR): 1, 3, 4
单项选择题
A.Archiver Process (ARCn):1, 2,5
B.System Monitor Process (SMON):1,4,5
C.Process Monitor Process (PMON):4,5,6
D.Database Writer Process (DBWn):1,3,4
多项选择题
A.Shared SQL Area will be allocated in the shared pool.
B.Shared SQL Area will be allocated when a session starts.
C.Shared SQL Area will be allocated in the large pool always.
D.Private SQL Area will be allocated in the Program Global Area (PGA) always.
E.Shared SQL Area and Private SQL Area will be allocated in the PGA or large pool.
F.The number of Private SQL Area allocations is dependent on the OPEN_CURSORS parameter.
单项选择题
A.1 and 2
B.2 and 5
C.1,3,and 4
D.3,4,and 5
E.1,2,3,and 4
单项选择题
A.because 4194304 is the granule size
B.because 4194304 is the standard block size
C.because 4194304 is the largest nonstandard block size defined in the database
D.because 4194304 is the total size of data already available in the database buffer cache
单项选择题
A.The buffer is currently being accessed.
B.The buffer is empty and has not been used.
C.The contents of the buffer have changed and must be flushed to the disk by the DBWn process.
D.The buffer is a candidate for immediate aging out and its contents are synchronized with the block contents on the disk.
单项选择题
A.Large Pool
B.Redo Log Buffer
C.Database Buffer Cache
D.Program Global Area (PGA)