Computer networks and their protection
Answers are for parents and teachers.
1
How many seconds does it take to send a 900 MB file at 120 Mbit/s?
60
2
What is 2³⁰? (Multiply 2 by itself 30 times; use a calculator.)
1073741824
3
How many device addresses are in a /28 network? (2⁴ – 2)
14
4
Write three security settings of the router at your home.
WPA2/WPA3 encryption, a strong Wi-Fi password, a changed administrator password and updated software.
5
What benefit does a VPN give and what risk can it bring?
It encrypts the connection, but an untrustworthy VPN service can see your traffic.