$1.$To instruct Telnet to stop performing a certain option it is necessary to use the $\_\_\_\_\_\_\_\_\_\_$ command.

A$)$DO

B$)$ DON'T

C$)$ STOP

D$)$ WILL

$2.$HTTPS is able to use A$)$ telnet certificates. B$)$ analog certificates. C$)$ invisible

protocols. D$)$ digital certificates.

$3.$Public access to an FTP server is granted under $\_\_\_\_\_\_\_\_\_\_$ access. A$)$ Anonymous B$)$ Open C$)$ Guest D$)$ Masked