Answer Happy

1) Alice chooses her password using Pokemon name. She randomly
picks X Pokemons, take the first 3
characters from each Pokemon's name, and concatenates them to form
her password. Let's assume that there are a total of
210= 1024 Pokemons and the first 3 characters of their
names are unique.
Alice uses the password for her home wifi access point (using
WPA2-PSK). Among the choices below, which is the smallest
X that meets the security
requirement.
i) 8
ii) 6
iii) 2
iv) 13
v) 30
vi) 4
2) Alice chooses her password using Pokemon name. She randomly
picks X Pokemons, take the first 3
characters from each Pokemon's name, and concatenates them to form
her password. Let's assume that there are a total of
210=1024 Pokemons and the first 3 characters of their
names are unique.
Suppose the password is for online banking login. Among the
choices below, which is the smallest X
that meets the security requirement?
i) 3
ii) 5
iii) 2
iv) 14
v) 20
vi) 8