Anetwork resource is masquerading as a network server and is causing hosts on the network to send requests to the attacker rather than the legitimate network server. what kind of attack is this?

Spoofing

Explanation: Spoofing is described as the attack that involves the attacker in a disguised form ,and attacks the network host by informing about its own address and data in a fraud manner to attacker sources. It is usually termed as the impersonation through technology to fraud with computer devices or the user.

Spoofing is of many forms such as:_