1Z0-060 Question #171: Real Exam Question with Answer & Explanation

The correct answer is A: reduced CPU utilization. Oracle Database 12c's multithreaded architecture consolidates background processes into threads within fewer OS processes, directly reducing CPU and virtual memory overhead at the OS level.

Question

Which two are direct benefits of the multiprocess, multithreaded architecture of Oracle Database 12c when it is enabled? (Choose two.)

Options

Areduced CPU utilization
Breduced physical I/O
Cimproved Serial Execution performance
Dreduced logical I/O
Ereduced virtual memory utilization

Explanation

Oracle Database 12c's multithreaded architecture consolidates background processes into threads within fewer OS processes, directly reducing CPU and virtual memory overhead at the OS level.

Common mistakes.

B. Physical I/O is determined by workload patterns and buffer cache effectiveness, not by whether the database uses a multiprocess or multithreaded OS architecture.
C. The multithreaded architecture improves OS-level resource efficiency but has no effect on serial query execution performance, which depends on execution plan selection and optimizer behavior.
D. Logical I/O is governed by SQL workload characteristics and buffer cache sizing, not by the threading model used for background database processes.

Concept tested. Oracle 12c multithreaded architecture OS resource benefits

Reference. https://docs.oracle.com/en/database/oracle/oracle-database/12.2/cncpt/process-architecture.html

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