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Which security mechanism detects suspicious activities and potential attacks on a network?

easy Q1 of 15
Computer Aptitude - Networking
Which security mechanism detects suspicious activities and potential attacks on a network?
AIntrusion Detection System (IDS)
BFirewall
CAntivirus
DBackup system
Step-by-Step Solution
  1. Step 1: Identify the security objective

    The question focuses on detecting attacks and unusual behaviour.
  2. Step 2: Match with the correct mechanism

    An Intrusion Detection System monitors traffic and alerts on suspicious activity.
  3. Final Answer:

    Intrusion Detection System (IDS) → Option A
  4. Quick Check:

    IDS detects attacks but does not block them directly ✅
Quick Trick: Attack detection = IDS.
Common Mistakes:
MISTAKES
  • Assuming firewalls also detect all intrusions.
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