フリー問題

問題文

An intruder flooded the public site so customers could not reach it, and no record was altered. Which property is at stake?

選択肢

1. The data completeness is the property at stake because the attacker gained the partial deletion without touching the access logging of that system.
2. The service transparency is the property at stake because the attacker gained the hidden processing without touching the stored accuracy of that system.
3. The processing timeliness is the property at stake because the attacker gained the delayed batches without touching the record content of that system.
4. The service availability is the property at stake because the attacker gained the sustained outage without touching the record accuracy of that system.