1. Which of the following technologies is most applicable for cloud stream analytics?
   1. Machine learning
   2. Stateful
   3. Simple threshold
   4. High sampling analysis
2. Which of these statements best describes the concept of prognostics?
   1. The time before a component breaks
   2. The probability that a component will break
   3. The remaining life of a component
   4. The prediction of the remaining life of a component
3. What's the EDA?
   1. Explorative Discovery Architecture
   2. Explorative Data Analysis
   3. Explorative Diagnostic Application
4. What's the OSA?
   1. A cloud architecture
   2. An open software for CBM
   3. A framework for diagnostics
   4. An open framework in CBM systems