[CCCure CISSP] Access Control - Brute Force Attack

[Ahsan Khan]

Greetings Hai,

Very nicely interpreted.

Regards,
MavKhan


On Mon, Feb 22, 2010 at 12:24 PM, Hai Tiet Kim <tietkimhai at gmail.com> wrote:

> Hi,
>
> If the correct answer is B then we will understand the question as follows:
>
> "If the password is made up of *A MAXIMUM* of 4 numeric characters, how
> many attempts
>     needed for a successful brute force attack?"
>
> So we will have 10^4 + 10^3 + 10^2 + 10^1 = 11110 choices.
>
> Best regards,
> Hai
>
> On Mon, Feb 15, 2010 at 12:05 AM, Nimal Gunarathna <ng949 at yahoo.com>wrote:
>
>> Hello Everyone, I have a question for you all?
>>
>> 1. If the password is made up of 4 numeric characters, how many attempts
>>     needed for a successful brute force attack?
>>
>> A. 10000
>> B. 11110
>> C. 1024
>> D. 11100
>>
>> *What I think: *
>> Every numeric character has 10 choices. Then 4 characters 10^4 = 10000
>> choices and
>> the answer should be A.  But the right answer is B. How is that possible?
>>
>>
>>
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>>
>
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