Question

Suppose that passwords for an email provider: must be either 8 or 10 characters long are...

Suppose that passwords for an email provider:

  • must be either 8 or 10 characters long
  • are case-sensitive, can include digits, and can include any of 12 special characters
  • cannot end in a special character
  • must contain at least one capital letter, one digit, or one special character (can contain more than one, just must contain at least one)

How many different passwords are possible?   Show your work.   Work on the back of this sheet and attach additional sheets as necessary.    A final answer in combinatorial is acceptable.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
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 { !, #, $, %, &, * }. Furthermore, each password must start with a letter and must contain at least one digit and one special character. How many different six-character passwords can be formed according to this specification?
2) Allowing (or requiring) users to use numerical digits (including 0) and one of 28 “special...
2) Allowing (or requiring) users to use numerical digits (including 0) and one of 28 “special characters” dramatically increases the number of possible passwords. Furthermore, passwords often are case-sensitive, effectively doubling the size of the alphabet by defining 52 distinct letter characters.    Assuming that passwords are case-sensitive and can include numerical digits and special characters, how many possible 6, 8 and 10 character passwords can be created? (8 points) 3) Allowing digits and special characters creates an enormous number...
A computer password can be 5 - 6 characters. The password must contain at least 1...
A computer password can be 5 - 6 characters. The password must contain at least 1 digit. All other characters must either be digits or lower case letters. How many unique passwords exists?
A computer password consists of: • letters {a, A, 6, B, ...,2,Z}, • digits {0, 1,...,9),...
A computer password consists of: • letters {a, A, 6, B, ...,2,Z}, • digits {0, 1,...,9), or = 16 • special characters {!,@,#,$,%}. 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?
a password must be 4 characters long and contain only digits and lowercase english letters. The...
a password must be 4 characters long and contain only digits and lowercase english letters. The english alphabet contains 5 vowels. Assuming that digits and letters can be repeated how many differnt passwords contain exactly one vowel? enter the exact numeric number
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...
You will write a program that loops until the user selects 0 to exit. In the...
You will write a program that loops until the user selects 0 to exit. In the loop the user interactively selects a menu choice to compress or decompress a file. There are three menu options: Option 0: allows the user to exit the program. Option 1: allows the user to compress the specified input file and store the result in an output file. Option 2: allows the user to decompress the specified input file and store the result in an...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT