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During a network breach, a security team isolates the affected subnet. What is the expected result of this containment action?

medium📝 Analysis Q4 of 15
Cybersecurity - Incident Response
During a network breach, a security team isolates the affected subnet. What is the expected result of this containment action?
AThe breach is limited to the isolated subnet
BAll network services stop functioning
CThe breach spreads to other subnets
DThe attacker gains full control of the network
Step-by-Step Solution
Solution:

  1. Step 1: Understand subnet isolation effect

    Isolating a subnet means cutting it off from the rest of the network to stop spread.

  2. Step 2: Predict outcome of isolation

    The breach should be contained within the isolated subnet, preventing spread.

  3. Final Answer:

    The breach is limited to the isolated subnet -> Option A

  4. Quick Check:

    Subnet isolation = breach limited [OK]
Quick Trick: Isolate subnet to limit breach spread [OK]
Common Mistakes:
MISTAKES
  • Assuming isolation stops all services
  • Thinking breach spreads despite isolation

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