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Oracle

1Z0-052 · Question #83

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…

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

How the community answered

(61 responses)
  • A
    2% (1)
  • B
    3% (2)
  • C
    93% (57)
  • D
    2% (1)

Why each option

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.

A1-c, 2-b, 3-d, 4-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.

B1-b, 2-c, 3-d, 4-a

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.

C1-a, 2-b, 3-c, 4-dCorrect

The SGA's shared pool stores text and parsed forms of SQL statements (1-a). The cursor state in the PGA holds run-time memory values such as rows retrieved during execution (2-b). User-session data in the PGA stores security and resource usage information for the session (3-c). Stack space holds local variables for the server process (4-d).

D1-a, 2-b, 3-d, 4-c

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

Source: 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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