Which statement best describes defense in depth?
Answer
Using multiple security measures so a single failure is less likely to cause total exposure
Explanation
### Why this is right
Defense in depth places multiple protective measures together. If one measure fails, other layers may still reduce the chance or effect of an incident.
### The concept
A single safeguard can fail, be bypassed, or be misconfigured. Multiple layers can address different paths and stages of an attack. Layers may include technical safeguards, policies, training, physical access measures, monitoring, and restricted permissions.
### The other options
- **Relying on one highly trusted security product**: this creates dependence on a single measure rather than multiple layers.
- **Removing all monitoring to reduce system load**: monitoring helps detect activity and is not the meaning of layered defense.
- **Giving every user unrestricted access**: this increases potential harm rather than limiting it.
### Terms
- **Defense in depth**: The use of multiple safeguards to reduce reliance on any one control.
- **Control**: A safeguard used to manage security risk.
### Remember
More than one layer helps limit single points of failure.
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