subject

Say a hacker has a list of ndistinct password candidates, only one of which will successfully log her into a secure system.
a. if she tries passwords from the list at random, deleting those passwords that do not work, what is the probability that her first successful login will be (exactly) on her k-th try?

b. now say the hacker tries passwords from the list at random, but does notdelete previously tried passwords from the list. she stops after her first successful login attempt. what is the probability that her first successful login will be (exactly) on her k-th try?

ansver
Answers: 3

Another question on Computers and Technology

question
Computers and Technology, 22.06.2019 17:00
The two main ways in which marketers address the competition with their strategies are by satisfying a need better than a competition and by
Answers: 2
question
Computers and Technology, 22.06.2019 20:00
How is the number 372 written when expanded out to place values in the base 8 (octal) number system? a. 2 x 4 + 3 x 2 + 4 x 1 b. 3 x 64 + 7 x 8 + 2 x 1 c. 3 x 8 + 7 x 7 + 2 x 6 d. 3 x 100 + 7 x 10 + 2 x 1
Answers: 1
question
Computers and Technology, 22.06.2019 21:30
Im doing this last minute and literally none of my neighbors or people that my dad works with use excel so if anyone could me make up an example
Answers: 1
question
Computers and Technology, 23.06.2019 01:30
How do you set up a slide show to play continuously, advancing through all the slides without requiring your interaction? a. click set up slide show, and then select the loop continuously until ‘esc' and show without narration options. b. click set up slide show, and then select the loop continuously until ‘esc' and use timings, if present options. c. click set up slide show, and then select the show presenter view and use timings, if present options. d. click set up slide show, and then select the show without animation and browsed at a kiosk (full screen) options.
Answers: 3
You know the right answer?
Say a hacker has a list of ndistinct password candidates, only one of which will successfully log he...
Questions
question
Mathematics, 07.10.2020 22:01