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Exam 212-89 All Questions

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Exam 212-89 topic 1 question 19 discussion

Actual exam question from ECCouncil's 212-89
Question #: 19
Topic #: 1
[All 212-89 Questions]

The network perimeter should be configured in such a way that it denies all incoming and outgoing traffic/ services that are not required. Which service listed below, if blocked, can help in preventing Denial of Service attack?

  • A. SAM service
  • B. POP3 service
  • C. SMTP service
  • D. Echo service
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Suggested Answer: D 🗳️

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Asafa
2 months, 2 weeks ago
Selected Answer: D
Blocking the Echo service (associated with ICMP Echo Requests, commonly used in "ping" commands) can help prevent Denial of Service (DoS) attacks. The Echo service is exploited in amplification attacks (e.g., Smurf attacks), where attackers flood a target with spoofed ICMP Echo Requests, causing overwhelming responses. Blocking unnecessary ICMP Echo traffic reduces this risk.
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