Multiple choice technology databases

How many ARCn processes can be associated with an instance

  1. five

  2. four

  3. three

  4. ten
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Oracle's ARCn (Archiver) processes are responsible for archiving filled redo log files. An instance can have up to 10 ARCn processes (ARC0 through ARC9), though typically only one or two are active. This maximum is defined by the LOG_ARCHIVE_MAX_PROCESSES initialization parameter.

AI explanation

To answer this question, we need to understand what an ARCn process is and its relationship with an instance.

An ARCn process stands for Asynchronous Refresh Control process. It is used in Oracle databases for automatic refreshing of materialized views.

In Oracle databases, an instance refers to the memory and processes associated with a running Oracle database. Each instance can have multiple background processes, including ARCn processes.

The correct answer is D) ten. An instance can have up to ten ARCn processes associated with it. These processes are responsible for refreshing materialized views asynchronously.

Therefore, the correct answer is D) ten.

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