According to NIST(National Institute Of Standard and Testing) which is not the characteristics of cloud computing?

According to NIST(National Institute Of Standard and Testing) stability is not the characteristics of cloud computing.Resource scalability, On demand and pay as you go are the three characteristics of cloud computing.Source: তথ্য ও যোগাযোগ প্রযুক্তি(একাদশ - দ্বাদশ শ্রেণী), প্রকৌশলী মজিবুর রহমান।