Improving reliability, availability and security issues

Which of the following factor(s) should the provider consider in order to improve reliability, availability and security issues in a cloud system?

1. Access control and availability managements

2. Vulnerability and problem management

3. Patch and configuration management

4. Countermeasure against security problems

5. Monitoring the unauthorized access

Options
  1. All
  2. All except 1
  3. All except 2 & 3
  4. All except 5
  5. None of the given options

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