問36
頻出度★★★
ITサービスマネジメントにおける可用性管理の目的として, 適切なものはどれか。
平成28年度 春期 ITパスポート試験 問36
マネジメント系サービスマネジメント › サービスマネジメントシステム
This question's explanation and your answers so far.
解説
問 36
- ア
正解 The purpose of availability management is to ensure that the IT service is in a state where it “can be used when needed” — that is, to reliably achieve and maintain the agreed availability rate (availability). Specifically, it plans and monitors the availability rate together with reliability, maintainability, and recoverability, and designs and improves the service so that it meets the target level. Therefore, choice ア, “Achieve the target availability rate in providing the IT service,” is correct.
Incorrectイ
“Reliably carry out changes to the system” is the objective of change management. It aims to assess the risks that accompany a change and implement it without disruption, which is a different process from availability management, whose purpose is to maintain the availability rate itself.
Incorrectウ
“Investigate the root cause of an outage and prevent its recurrence” is the objective of problem management. It is the activity of pinpointing the cause behind an incident and putting permanent countermeasures in place, and is not the purpose of availability management.
Incorrectエ
“Restore a stopped service as quickly as possible” is the objective of incident management. It is the activity of seeking early recovery from a failure that has occurred, and differs in role from availability management, which plans to achieve and maintain the target availability rate.
ここがポイント
- The purpose of availability management is to achieve the agreed target availability rate (availability) by planning, monitoring, and maintaining it.
- Distinguish the objectives of each IT service management process: change management = reliably implementing changes, problem management = investigating root causes and preventing recurrence, incident management = quick recovery.
用語