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CompTIA Security+ 3.4 CompTIA Security+ 1.2
TechKnowSurge Catalog Interactives Where Is the Single Point of Failure?
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Where Is the Single Point of Failure?

A backhoe cuts the only circuit, the only air conditioner fails, someone deletes the only copy: name the redundancy each failure was missing.

⚑ Complete this interactive to capture a CTF flag worth 5 points.

About this interactive

Redundancy is like a spare tire: you hope not to need it, and when you get a flat it is what lets you carry on. Something will fail, and redundancy is how availability survives it. The lesson lists seven areas to build it into. Location: a second site, so a flood or fire at one does not end the service. Power: a second feed, batteries and a generator. Cooling: more than one cooling unit, because servers shut down when they overheat. Networking: more than one circuit, provider or link. Hardware: a second server or component ready to take over. Software and services: more than one running instance of a service. Data: more than one copy, so a deletion, corruption or ransomware does not destroy the only one. To use the list, find the single thing whose failure stopped the service, then ask which area it belongs to. Later modules go deep on each area; here the goal is to see where the spare tire was missing.

What you'll learn

Aligned to

CompTIA Security+
3.4 Explain the importance of resilience and recovery in security architecture.
1.2 Summarize fundamental security concepts.

Key terms

Redundancy
The duplication of critical components or systems to increase reliability and availability.
Availability
The assurance that systems and data are accessible and operational when needed by authorized users.
Failover
The automatic switching to a redundant system or component when the primary one fails.
High Availability
HA
High Availability describes systems designed to operate continuously with minimal downtime, achieved through redundancy, failover clustering, and load balancing to meet the Availability pillar of the CIA triad.
Location Redundancy
The practice of distributing duplicate systems or services across geographically separate sites to protect against localized failures or disasters.
ISP Redundancy
The use of multiple internet service providers to ensure continued connectivity if one provider experiences an outage.

Topics

Redundancy Availability Single Point Of Failure Failover Interactive Categorize

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