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Share some 11g 1Z0-052 exam questions and answers below.
Examine the following statement that is used to modify the constraint on the SALES table: 
SQL> ALTER TABLE SALES MODIFY CONSTRAINT pk DISABLE VALIDATE; 
Which three statements are true regarding the above command? (Choose three.) 
A.The constraint remains valid. 
B.The index on the constraint is dropped. 
C.It allows the loading of data into the table using SQL *Loader. 
D.New data conforms to the constraint, but existing data is not checked. 
E.It allows the data manipulation on the table using INSERT/UPDATE/DELETE SQL statements. 
Answer: ABC

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 

Identify the memory component from which memory may be allocated for: 
1: Session memory for the shared server 
2: Buffers for I/O slaves 
3: Oracle Database Recovery Manager (RMAN) backup and restore operations 
A.Large Pool 
B.Redo Log Buffer 
C.Database Buffer Cache 
D.Program Global Area (PGA) 
Answer: A 

Observe the information in the columns: 
1: The SGAa. Text and parsed forms of all SQL statements 
2: The cursor stateb. Run-time memory values for the SQL statement, such as rows retrieved 
3: User-session datac. Security and resource usage information 
4: The stack spaced. Local variables for the process 
Which option has the correct match between the memory areas and their contents? 
A.1-c, 2-b, 3-d, 4-a 
B.1-c, 2-b, 3-d, 4-a 
C.1-a, 2-b, 3-c, 4-d 
D.1-a, 2-b, 3-d, 4-c 
Answer: C

Your test database is running in NOARCHIVELOG mode. Which statement is true regarding the type of backups that can be performed on the database? 
A.You can perform online whole database backups. 
B.You can perform offline whole database backups. 
C.You cannot perform schema-level export/import operations. 
D.You can perform the backup of only the SYSTEM tablespace when the database is open. 
Answer: B 

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