Final answer:
Black box testing is the level where testers simulate an outsider's attack on a network without any knowledge of the system or special privileges.
Step-by-step explanation:
The penetration testing level given to testers who have no knowledge of the network and no special privileges is known as a Black box test. In black box testing, the tester approaches the system just like an outsider or a hacker would, without any inside knowledge of the system's architecture or coding. The tester has to find vulnerabilities that could be exploited by malicious entities without the help of any insider information. This type of testing can be seen as a real-world simulation of a cyber-attack.