11. Which of the following are valid strategies for recovery after encountering service failure? (Select all that apply.)
- Switching to a secondary instance.
- Setting up monitoring and alerts.
- Restoring from backup.
- Performing a rollback to a previous version.
12. Which of the following concepts provide redundancy? (Select all that apply.)
- Having a secondary instance of a VM.
- Having a secondary Cloud vendor.
- Having automatic backups configured.
- Performing a rollback.
13. If you operate a service that stores any kind of data, what are some critical steps to ensure disaster recovery? (Select all that apply)
- Implement automated backups
- Use redundant systems wherever possible
- Test backups by restoring
- Never delete old backups
14. What is the correct term for packaged applications that are shipped with all needed libraries and dependencies, and allows the application to run in isolation?
- Rollback
- Secondary instance
- Containers
- Disk Image
15. Using a large variety of containerized applications can get complicated and messy. What are some important tips for solving problems when using containers? (Select all that apply)
- Use extensive logging in all parts
- Reduce the number of containers
- Reuse container configurations
- Use test instances
