Chris has been asked to do a penetration test of a company. He has been given general information but not many details about the network. Which type of test is this?

A partially known (gray-box) test involves the tester being given partial information about the network. A known environment (white-box) test involves the tester being given full or nearly full information about the target network, and unknown (black-box) environments don’t provide information about the target environment. "Masked" is not a testing term.