From the course: CompTIA Security+ (SY0-701) Cert Prep: 3 Security Architecture
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High availability and fault tolerance
From the course: CompTIA Security+ (SY0-701) Cert Prep: 3 Security Architecture
High availability and fault tolerance
We've already discussed some of the ways that security professionals can ensure the continued operation of systems. Let's dig into this in a little more detail. There are two key technical concepts that improve the availability of systems. High availability, otherwise known as HA, uses multiple systems to protect against failures. These are techniques like the ones we discussed in the earlier video, having a cluster of web servers in place that can continue to operate even if a single server fails is one example. Another is using a pair of firewalls with one designated as the backup. The core concept of high availability is having operationally redundant systems, sometimes at different sites. The geographic dispersal of placing systems in different locations protects you against damage to a facility. Fault tolerance, or FT, helps protect a single system from failing in the first place by making it resilient in the face of technical failures. One quick note: Load balancing is a related…
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Business continuity planning3m 10s
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Business continuity controls3m 32s
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High availability and fault tolerance5m 10s
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Disaster recovery4m 24s
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Backups5m 18s
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Restoring backups2m 11s
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Disaster recovery sites3m 16s
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Testing BC/DR plans2m 26s
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Capacity planning1m 30s
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