Answer: Click the System Preferences icon on the dock. In the first row, click Desktop & Screen Saver.
Explanation: When it comes to macOS versions, Mojave and High Sierra are very comparable. The two have a lot in common, unlike Mojave and the more recent Catalina.
Answer:
Port scanner
Explanation:
The penetration tester would most likely use a port scanner. A port scanner can be explained to be an application that is made to check a server or host for ports that are open. This application can also be used by administrators to check their security networks so as to know those network services that are running on a host and also to know existing vulnerabilities. Attackers also use this to exploit victims.
A spoofing attack. "<span>a situation in which one person or program successfully masquerades as another by falsifying data, thereby gaining an illegitimate advantage."</span>
If I'm not mistaken firewalls should be enough as now the automatically back up all data
Inputs are the contols that let you interact with an operating system.