Security+ Question of the Week: High Availability By Guest Authors March 5, 2014 High availability of a resource could be achieved through the implementation of what service? A. SSD storage B. Offsite backups C. Clustering D. Optical network links The correct answer is C. Domain: 2.7. Clustering is one possible technology that can be employed to increase or achieve high levels of availability or uptime. Related Courses Security+ Prep Course (SY0-401) Security+ Certification Boot Camp (SY0-401) In this article CompTIACybersecuritySecurity+TechnologyCompTIA Security+Security+ Join the Conversation Cancel Reply Will not be published. Website Notify me of follow-up comments by email. Notify me of new posts by email.