The AccessPlus system at ISU has the following policy for
creating a password:
-Passwords must be...
The AccessPlus system at ISU has the following policy for
creating a password:
-Passwords must be exactly 8 characters in length.
-Passwords must include at least one letter (a-z, A-Z) or
supported special character (@, #, $ only).
-All letters are case-sensitive.
-Passwords must include at least one number (0-9).
-Passwords cannot contain spaces or unsupported special
characters.
According to this policy, how many possible AccessPlus passwords
are available? (Round to the nearest
trillion)
1) Assume that a password can contain upper and lower-case
letters (26), digits, and special characters...
1) Assume that a password can contain upper and lower-case
letters (26), digits, and special characters from the set { !, #,
$, %, &, * }. Furthermore, each password must start with a
letter and must contain at least one digit and one special
character. How many different six-character passwords can be formed
according to this specification?
2) Allowing (or requiring) users to use numerical digits
(including 0) and one of 28 “special...
2) Allowing (or requiring) users to use numerical digits
(including 0) and one of 28 “special characters” dramatically
increases the number of possible passwords. Furthermore, passwords
often are case-sensitive, effectively doubling the size of the
alphabet by defining 52 distinct letter characters.
Assuming that passwords are case-sensitive and can include
numerical digits and special characters, how many possible 6, 8 and
10 character passwords can be created? (8 points)
3) Allowing digits and special characters creates an enormous
number...
A computer password consists of: • letters {a, A, 6, B,
...,2,Z}, • digits {0, 1,...,9),...
A computer password consists of: • letters {a, A, 6, B,
...,2,Z}, • digits {0, 1,...,9), or = 16 • special characters
{!,@,#,$,%}. In addition, a password must • contain at least one
upper case letter, • contain at least one special character. How
many passwords of length 8 are possible?
1- A particular automatic sprinkler system has two different
types of activation devices for each sprinkler...
1- A particular automatic sprinkler system has two different
types of activation devices for each sprinkler head. One type has a
reliability of 0.87; that is, the probability that it will activate
the sprinkler when it should is 0.87. The other type, which
operates independently of the first type, has a reliability of
0.77. If either device is triggered, the sprinkler will activate.
Suppose a fire starts near a sprinkler head.
a) What is the probability that the sprinkler head...
***Programming language is Java. After looking at this scenario
please look over the requirements at the...
***Programming language is Java. After looking at this scenario
please look over the requirements at the bottom (in bold)
THIS IS ALL THAT WAS PROVIDED. PLEASE
SPECIFY ANY QUESTIONS IF THIS IS NOT CLEAR (don't just say more
info, be specific)***
GMU in partnership with a local sports camp is offering a
swimming camp for ages 10-18. GMU plans to make it a regular event,
possibly once a quarter. You have been tasked to create an
object-oriented solution to register,...
Strings
The example program below, with a few notes following, shows how
strings work in C++....
Strings
The example program below, with a few notes following, shows how
strings work in C++.
Example 1:
#include <iostream> using namespace std; int main()
{
string s="eggplant";
string t="okra";
cout<<s[2]<<endl;
cout<< s.length()<<endl; //prints 8
cout<<s.substr(1,4)<<endl; //prints ggpl...kind of
like a slice, but the second num is the length of the
piece
cout<<s+t<<endl; //concatenates: prints eggplantokra
cout<<s+"a"<<endl;
cout<<s.append("a")<<endl; //prints eggplanta: see
Note 1 below
//cout<<s.append(t[1])<<endl; //an error; see
Note 1
cout<<s.append(t.substr(1,1))<<endl; //prints
eggplantak; see Note 1
cout<<s.find("gg")<<endl;
if (s.find("gg")!=-1)
cout<<"found...