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350-701 · Question #230

Which attack type attempts to shut down a machine or network so that users are not able to access it?

The correct answer is D. smurf. A Smurf attack is a type of Denial of Service (DoS) attack that floods a target victim with ICMP echo reply packets, making the machine or network inaccessible.

Submitted by ahmad_uae· Mar 30, 2026Security Concepts

Question

Which attack type attempts to shut down a machine or network so that users are not able to access it?

Options

  • AIP spoofing
  • Bbluesnarfing
  • CMAC spoofing
  • Dsmurf

How the community answered

(47 responses)
  • A
    2% (1)
  • B
    4% (2)
  • C
    2% (1)
  • D
    91% (43)

Why each option

A Smurf attack is a type of Denial of Service (DoS) attack that floods a target victim with ICMP echo reply packets, making the machine or network inaccessible.

AIP spoofing

IP spoofing involves forging the source IP address of a packet, often used to hide the attacker's identity or impersonate another system, but it is not an attack type aimed at shutting down services directly.

Bbluesnarfing

Bluesnarfing is an attack against Bluetooth-enabled devices, allowing unauthorized access to information, not a method for shutting down an entire network or machine.

CMAC spoofing

MAC spoofing involves changing a network interface's MAC address to bypass access controls or impersonate another device, but it does not directly shut down services.

DsmurfCorrect

A Smurf attack is a Distributed Denial of Service (DDoS) attack that uses ICMP echo requests directed at IP broadcast addresses, causing many hosts to reply to a spoofed victim IP address, overwhelming the target.

Concept tested: Denial of Service attack types

Source: https://www.cisco.com/c/en/us/support/docs/security/ios-firewall/17498-smurf.html

Topics

#DoS attacks#Smurf attack#Cybersecurity fundamentals

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