John, a malicious hacker, forces a router to stop forwarding packets by flooding it with many open connections simultaneously so that all hosts behind it are effectively disabled. Which of the followi

A rainbow attack is a password-cracking technique that uses precomputed hash tables to reverse cryptographic hashes and has no relation to flooding network devices.

A Denial of Service (DoS) attack aims to make a network resource unavailable by overwhelming it with traffic or connection requests beyond its capacity to handle. Flooding a router with open connections exhausts its state table and processing resources, preventing it from forwarding legitimate packets and effectively disabling all hosts behind it.

ARP spoofing involves sending falsified ARP messages to link the attacker's MAC address with a legitimate IP address, used for traffic interception rather than resource exhaustion.

A replay attack captures and retransmits valid network packets to trick a system into accepting them as legitimate, which is an authentication bypass technique, not a resource exhaustion method.