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CompTIA Cloud+ Study Guide by Todd Montgomery

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Chapter 10 Understanding Business Continuity in the Cloud

THE FOLLOWING COMPTIA CLOUD+ EXAM OBJECTIVES ARE COVERED IN THIS CHAPTER:

  • 7.1 Disaster recovery methods and concepts
    • Redundancy
    • Failover
    • Failback
    • Geographical diversity
    • Replication
    • Site mirroring
    • Hot site
    • Cold site
    • Warm site
    • Backup and recovery
    • Archiving and offsite storage
    • Replication types: Synchronous, Asynchronous
    • RTO
    • RPO
    • MTBF
    • MTTR
    • Mission critical requirements
  • 7.2 High Availability and fault tolerance in the Cloud
    • Fault tolerance: high availability, local clustering / geoclustering, non-high-availability resources
    • Multipathing
    • Load balancing

Disaster Recovery Methods and Concepts

Cloud computing operations can be amazingly complex, as you have learned throughout this book. Failures can and will happen, often when least expected. It is important for you to expect that these failures are going to happen and plan for disruptions ahead of the events so you can be ready when they occur.

Some outages, such as a web server failure, are relatively easy to plan for by implementing multiple web servers behind a load balancer. With the amount of virtualization in the cloud datacenters, virtual machines can easily be moved ...

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