Methods of protecting information
Answers are for parents and teachers.
1
How many GB do all copies of a 25 GB project take under the 3-2-1 rule?
75
2
A 900 MB file became 300 MB. By how many times was it compressed?
3
3
Backups of 3 different projects, 120 GB each, are written to a 500 GB external disk. How many GB stay free on the disk?
140
4
If your phone is lost, write three actions done in advance that protect it.
A screen lock, device encryption, a backup and a remote find/erase service.
5
Why is installing a “free” program from a suspicious site risky? Write two reasons.
It may contain a virus or data-stealing code; it is not updated and may be illegal.