Oracle
1Z0-052 · Question #83
1Z0-052 Question #83: Real Exam Question with Answer & Explanation
The correct answer is C: 1-a, 2-b, 3-c, 4-d. The question tests knowledge of Oracle memory area contents, where the SGA holds parsed SQL, cursor state holds runtime row data, user-session data holds security info, and stack space holds local process variables.
Exploring the Oracle Database Architecture
Question
Observe the information in the columns: 1. The SGA a. Text and parsed forms of all SQL statements 2. The cursor state b. Run-time memory values for the SQL statement, such as rows retrieved 3. User-session data c. Security and resource usage information 4. The stack space d. Local variables for the process Which option has the correct match between the memory areas and their contents?
Options
- A1-c, 2-b, 3-d, 4-a
- B1-b, 2-c, 3-d, 4-a
- C1-a, 2-b, 3-c, 4-d
- D1-a, 2-b, 3-d, 4-c
Explanation
The question tests knowledge of Oracle memory area contents, where the SGA holds parsed SQL, cursor state holds runtime row data, user-session data holds security info, and stack space holds local process variables.
Common mistakes.
- A. This mapping incorrectly assigns security and resource usage information to the SGA and local variables to user-session data, swapping the roles of those two memory areas.
- B. This mapping incorrectly assigns run-time memory values to the SGA rather than to the cursor state, and places security information with the cursor state instead.
- D. This mapping correctly pairs 1-a and 2-b but then swaps user-session data and stack space, assigning local variables to the user-session area and security information to the stack space.
Concept tested. Oracle SGA and PGA memory area contents
Reference. https://docs.oracle.com/en/database/oracle/oracle-database/19/cncpt/memory-architecture.html
Topics
#memory architecture#SGA#PGA#cursor state
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