What method can be used to mitigate ping sweeps?
- using encrypted or hashed authentication protocols
- installing antivirus software on hosts
- deploying antisniffer software on all network devices
- blocking ICMP echo and echo-replies at the network edge
Explanation: A computer can have a worm installed through an email attachment, an executable program file, or a Trojan Horse. The worm attack not only affects one computer, but replicates to other computers. What the worm leaves behind is the payload–the code that results in some action.
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