☰ Contents · Computing

The concept of information security

Lessons 27 · 1 lessons · N. I. Taylaqov (general editor), A. B. Akhmedov, M. D. Pardayeva, A. A. Abdug‘aniyev, U. M. Mirsanov. Informatics and Information Technologies, Grade 11, 1st edition. “Extremum-press”, Tashkent, 2018
Answers are for parents and teachers.
1
How many variants does a 5-digit PIN have?
2
How many variants does a 5-character password of only lowercase Latin letters have?
3
An event happening 3 times a year costs 5000000 soum each time. What is the expected yearly loss in soum? (If protection costs 12000000 soum a year, compare for yourself whether it pays off.)
4
Write three actions to improve protection for three of your accounts (e-mail, social network, game).
5
Why must you not enter a friend's account without permission? Write two reasons.