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SY0-701 · Question #740

SY0-701 Question #740: Real Exam Question with Answer & Explanation

The correct answer is C: Worm. TCP port 445 is commonly used for Microsoft SMB (Server Message Block) protocol, which is often targeted by worms like WannaCry and NotPetya to spread rapidly across a network. The symptoms described - high traffic on TCP 445, high latency, and network unavailability - suggest a

Submitted by yuriko_h· Mar 6, 2026Threats, vulnerabilities, and mitigations

Question

A security team receives reports about high latency and complete network unavailability throughout most of the office building. Flow logs from the campus switches show high traffic on TCP 445. Which of the following is most likely the root cause of this incident?

Options

  • ABuffer overflow
  • BNTP amplification attack
  • CWorm
  • DDoS attack

Explanation

TCP port 445 is commonly used for Microsoft SMB (Server Message Block) protocol, which is often targeted by worms like WannaCry and NotPetya to spread rapidly across a network. The symptoms described - high traffic on TCP 445, high latency, and network unavailability - suggest a self-replicating worm is propagating, overwhelming network resources and disrupting normal

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