1Z0-052 Question #49: Real Exam Question with Answer & Explanation

The correct answer is A: Checkpoint (CKPT). The component marked in the exhibit is the Checkpoint process (CKPT), a core Oracle background process responsible for triggering write operations and updating file headers.

Exploring the Oracle Database Architecture

Question

View the Exhibit and identify the component marked with a question mark.

Exhibit

Options

ACheckpoint (CKPT)
BProcess Monitor (PMON)
CArchiver Processes (ARcn)
DRecoverer Process (RECO)
EMemory Manager Process (MMAN)

Explanation

The component marked in the exhibit is the Checkpoint process (CKPT), a core Oracle background process responsible for triggering write operations and updating file headers.

Common mistakes.

B. PMON (Process Monitor) monitors and cleans up resources left by failed user processes, such as releasing locks and rolling back uncommitted transactions.
C. ARCn (Archiver) copies filled online redo log files to archive destinations and plays no role in checkpoint signaling or file header updates.
D. RECO (Recoverer) resolves in-doubt transactions that arise from network or system failures in distributed database environments.
E. MMAN (Memory Manager) dynamically manages the sizes of SGA components under Automatic Shared Memory Management and is unrelated to checkpoint operations.

Concept tested. Oracle CKPT background process role in database architecture

Reference. https://docs.oracle.com/cd/E11882_01/server.112/e40402/bgprocesses.htm

Topics

#checkpoint process#CKPT#background processes#database architecture

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