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.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

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?
A computer password consists of six characters. 36a. How many different passwords are possible if each...
A computer password consists of six characters. 36a. How many different passwords are possible if each character may be any lowercase letter or digit, and at least one character must be a digit? Please enter your result in scientific notation, making sure the answer in the left box is between 1 and 10. 36b. A computer system requires that passwords contain at least one digit. If six characters are generated at random, and each is equally likely to be any...
Each user on a computer system has a password, which is seven to nine characters long,...
Each user on a computer system has a password, which is seven to nine characters long, where each character is an uppercase letter or a digit. Each password must contain at least one digit or at least one Uppercase letter. How many possible passwords are there?
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...
Suppose that a certain computer password is allowed to be from 8 to 12 characters long,...
Suppose that a certain computer password is allowed to be from 8 to 12 characters long, and may contain only lowercase letters (a to z), uppercase letters (A to Z), and numbers (0 to 9). 1. How many such passwords are possible? 2. How many such passwords are possible if you cannot repeat characters? 3. How many such passwords are possible if you cannot repeat characters, and you must include at least one 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...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT