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:_

to change your username, you must:

1) make sure what the username you want to change to is allowed in this community

2) contact a administrator (for example, jaysl)

3) through pm, tell the admin what you want to change to

4) if the username is allowed, it will be changed in a matter of seconds (minutes at most)

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