Apps, Rules and Control: teacher key

How Apps Work, grade 12 edition, written for 12th grade and up. An app is software that runs inside an operating system and often talks to servers. Android keeps apps in sandboxes, stores and advertisers shape what apps do, and the COPPA rule protects children under 13.

Read the book. Print this page for the key.

Questions and answers

1. What does the principle of least privilege mean for an Android app by default?
   • It can reach only the components it needs (answer)
   • It can reach every part of the phone
   • It cannot run at all
2. What happens when a person tells an iPhone app not to track them?
   • The app stops working completely
   • The person can still use the app's full features (answer)
   • The phone turns off
3. What is the primary goal of COPPA, according to the FTC?
   • To sell more apps
   • To make apps free
   • To place parents in control over what information is collected from young children online (answer)
4. Why might a parent set up a phone so that a child has to ask before getting an app?
   • So a grown-up decides before the child gets it (answer)
   • So the app runs faster
   • So the app costs less
5. In the sentence "Phishing is when criminals try to get people to open harmful links," what is phishing?
   • A way to update an app
   • A scam that tries to trick people into opening harmful links (answer)
   • A phone's battery setting

Words

• sandbox: app's own space
• COPPA: children's privacy rule
• phishing: scam tries
• server: network computer