Correct option is A
A
ping sweep is a network scanning technique used to identify live hosts in a specific IP range. It sends ICMP (Internet Control Message Protocol) echo requests to multiple IP addresses and waits for responses to determine active devices.
Important Key Points:
1.
Ping Sweep: Scans multiple IP addresses simultaneously to detect which ones are active.
2.
ICMP Protocol: Used to send echo requests and receive replies.
3. Commonly used for network discovery or reconnaissance.
Knowledge Booster:
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Cracking: Refers to bypassing security for unauthorized access, unrelated to network scanning.
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Phreaking: Involves hacking telephone networks.
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Teardrop Attack: A DoS attack exploiting fragmented packets, not used for scanning.