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What attack floods networks with broadcast traffic so that the network is congested?

What attack floods networks with broadcast traffic so that the network is congested?

PrepAway - Latest Free Exam Questions & Answers

A.
Spoofing

B.
Teardrop

C.
Brute force

D.
SMURF

Explanation:
SMURF attack — This attack floods networks with broadcast traffic so that the network
is congested. The perpetrator sends a large number of spoofed ICMP (Internet Control
Message Protocol) echo requests to broadcast addresses hoping packets will be sent to
the spoofed addresses. You need to understand the OSI model and how protocols are
transferred between layer 3 and layer 2 to understand this attack. The layer 2 will
respond to the ICMP echo request with an ICMP echo reply each time, multiplying the
traffic by the number of hosts involved. Engineers should turn off broadcast capability
(if possible in your environment) to deter this kind of attack.


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