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Share some 11g 1Z0-052 exam questions and answers below.
Which two statements about the background process of the database writer are true? (Choose two.) 
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. 
Answer: AB

Which two statements are true about the Automatic Workload Repository (AWR)? (Choose two.) 
A.All AWR tables belong to the SYSTEM schema. 
B.The AWR contains systemwide tracing and logging information. 
C.The snapshots collected by the AWR are accessible through data dictionary views. 
D.The snapshots collected by the AWR are used by self-tuning components in the database. 
Answer: CD

Note the following functionalities of various background processes: 
1: Record the checkpoint information in data file headers. 
2: Perform recovery at instance startup. 
3: Cleanup unused temporary segments. 
4: Free the resources used by a user process when it fails. 
5: Dynamically register database services with listeners. 
6: Monitor sessions for idle session timeout. 
Which option has the correct functionalities listed for a background process? 
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 
Answer: C

You have issued a SHUTDOWN ABORT command to bring down your database instance. Consider the steps that will be performed later when you open the database: 
1: SGA is allocated. 
2: Control file is read. 
3: Redo log files are read. 
4: Instance recovery is started. 
5: Background processes are started. 
6: Data files are checked for consistency. 
7: Server parameter file or the initialization parameter file is read. 
Which option has the correct order in which these steps occur? 
A.7, 1, 5, 2, 3, 6, 4 
B.1, 2, 3,7, 5, 6, 4 
C.7, 1, 4, 5, 2, 3, 6 
D.1, 7, 5, 4, 2, 3, 6 
Answer: A

Which is the correct description of a pinned buffer in the database buffer cache? 
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. 
Answer: A 

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