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      Question

      What is a 'DDoS

      attack'?
      A A virus that corrupts database records silently resulting in service unavailability Correct Answer Incorrect Answer
      B An attempt to steal encrypted data from a secure server by impersonation or identity theft Correct Answer Incorrect Answer
      C Overwhelming a server/network with traffic from multiple sources to make it unavailable Correct Answer Incorrect Answer
      D Unauthorized access to a system using stolen credentials Correct Answer Incorrect Answer
      E A technique to intercept communications between two parties Correct Answer Incorrect Answer

      Solution

      DDoS (Distributed Denial of Service) uses a botnet (thousands of compromised computers) to flood a target with traffic, exhausting its resources and making it unavailable to legitimate users. Banks are frequent targets. Mitigations include traffic scrubbing, rate limiting, CDN protection (Cloudflare), and Anycast diffusion.

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