SRE and DevOps fundamentals sample question with answer 125

Question:
Which of the following characterizes the Waterfall approach?

1. Phases with entrance and exit criteria with no provision for change
2. Valuing individual and interactions over processes and tools
3. An iterative approach with tighter and tighter feedback loops
4. Teams working together, aware of their impact on each other

Answer:
A - is the correct answer. When one phase ends, the next one begins. There is no provision for going back