How many passwords of length 4 can we construct using the 26 letters of the English alphabet, If letters can be repeated??

Q: How many passwords with 5 letters without repetition can be made from letters a,b,c,d,e,f,g,h,I,j

A: Solve using permutations

Q: How many bits string of length 4 are possible such that they contain 2 ones and 2 zeroes?

A: 2. Given Data: The length of string is: n=4 The number of ones is: 2 The number of zeros is: 2   The…

Q: A password contains eight digits, such as 17466780. How many different passwords be formed?

A: Here  Password contains 8 digits

Q: How many distinct ten-digit passwords are possible if you must use at least one 26 lower case letter…

A: Given: you must use at least one 26 lower case letter from {a, b, . . . , z}, at least one 26 upper…

Q: How many strings of length 5 can be formed if the alphabet (set of available characters)is {a,b,c}…

A: When there are nth places and m elements. With repetition, the choice of 1st place will be m, the…

Q: Assuming that the password is NOT case-sensitive and that letters can be used more than once, how…

A: The number of not case-sensitive letters 26. They are a, b, c,….,z.

Q: A password contains eight digits, such as 17466780. How many different passwords can be formed?

A: no.of digits(0 to 9)=10

Q: How may bit strings with length 10 that has exactly three 1s and end with 0?

A: Combination: The number of ways to choose or select the items from the whole. The formula for…

Q: A lock code requires 3 digits followed by 2 letter(s). How many different lock codes are possible?…

A:

Q: Let us say that we are going to create eight letter passwords from a set of 23 letters (all of the…

A: There are 23 alphabets, 10 numerics and 5 symbols.

Q: can

A: Given: Condition required to make the password. To find: Number of passwords

Q: How many computer passwords of length 3 you can make out of given 5 characters a. if repetition of…

A:

Q: You are selecting a 7 character password using 4 letters and 3 numbers ( from 0-9 ), without…

A: The following solution is given below :

Q: How many different five​-letter passwords can be formed from the letters A, B, C, D, E, F, G and H…

A: Permutation rule:From a group of n items, k items can be arranged in ordered ways in,

Q: How many different passwords exist that consist of 12 characte using uppercase and lowercase…

A:

Q: How many 10-bit strings are there if the string must start with 001 or 10?

A: By using the given information the solution is given as follows

Q: A password has a length of four letters of the 26 in the English alphabet. If the password only has…

A: no.of english alphabets=26

Q: How many 10-bit strings are there if the string must have exactly one 1 in the first half and…

A: The string must contain exactly one 1 in the first half and exactly one 1 in the second half. So…

Q: Solve by the method of your choice:How many different four-letter passwords can be formed from the…

A: If repetition of letters is not allowed, we will use Permutations to find the number of…

Q: How many different four-letter passwords can be formed from the letters A, B, C, D, E, F, G and H if…

A:

Q: How many different passwords are there that contain only digits and lower-case letters and satisfy…

A:

Q: How many strings of eight uppercase English letters are there that start with X, if no letters are…

A: We have 26 possible letters in English alphabet: Now we have to form a string of eight uppercase…

Q: A small combination lock on a suitcase has 3​wheels, each labeled with the 10 digits 0 to 9. How…

A:

Q: Each character in a password of length six can be any uppercase letter from A-Z or any symbol from…

A:

Q: A password consists of 4 characters, the first 2 being letters in the (English) alphabet and the…

A:

Q: Each character in a password of length six can be any uppercase letter from A-Z or any symbol from…

A: Given information: Total number of letters that can be used for password = 26 Total number of…

Q: What are the number of ways you can pick a password of 5 letters with all different letters???

A: There are a total of 26 letters in the English alphabet.

Q: A computer password must be eight characters long. How many passwords are possible if only the 26…

A: Here we are having 2 possible Scenarios.   Case 1: If repetition is allowed Case 2: If repetition is…

Q: Suppose a password must have at least 8 characters, but no more than 12 characters, made up of…

A: Given that, Suppose a password must have at least 8 characters, but no more than 12 characters, made…

Q: A password consists of 6 capital letters followed by 6 digits. If repetition is allowed, find the…

A: A password consists of 6 capital letters followed by 6 digits.  If repetition is allowed, find the…

Q: assume that you are trying to transmit a secret code using 3 letter words. if only 5 letters of the…

A: Given only 5 letters of the alphabet can be usedNO.of alphabets =5No.of words should be in secret…

Q: An Internet service provider requires its customers to select a password consisting of fourletters…

A: An Internet service provider requires its customers to select a password consisting of fourletters…

Q: A corporate password consists of four digits, followed by three lower-case letters of the alphabet.…

A: The password is 4 digits long followed by three lower-case letters.

Q: 6 - How many different two-letter passwords can be formed using the letters A, B, C, D, E, and F if…

A: given letters A B C D E F total no. of letters = 6 we need a two letter password

Q: How lany passwords can be created with two letters followed by two digits, if no letter or a digit…

A:

Q: How many three digit passcode can be made from the digits 0-9in the first number is not allowed to…

A:

Q: Suppose a password must be express by selecting digits for 5 places, the allowable digits being 0,…

A: Although, the example of a typical password is 332401, a 6 digit number, the first sentence of the…

Q: Suppose a company needs temporary passwords for the trial of a new payroll software. Each password…

A: The password must have, 1 digit and 3 alphabets. Number of digits available is 6 and the number of…

Q: The company has agreed on an 8 character password format, comprised of upper case letters , lower…

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Q: How many possible passwords can be formed from the letters: ASSISTANT_TITAN ?

A:

Q: I want to make a password using 3 consonants followed by 3 vowels. Given that I do not want…

A: Here Given , password made using 3 consonant followed by 3 vowels. There are total 26 alphabets , of…

Q: the minimum and maximum numbers that can be represented in two’s complement in 6 bits?

A: We have to find the minimum and maximum numbers that can be represented in two’s complement in 6…

Q: A password must have 2 letters from the school acronym SSPU and 3 digits from 1 to 9. How many…

A:

Q: A string that contains only Os, 1s, and 2s is called a ternary string. How many ternary strings of…

A: Multiplication Principle:Suppose that we perform r experiments such that the kth experiment has nk…

Q: To gain access to his account, a customer using an automatic teller machine (ATM) must enter a…

A: We will use basic combinatorics.

Q: How many passwords can be made if each password a sequence of 4 uppercase flowed by a consonant…

A: For one digits we have 10 choice For 2 digits we have 10*10 =100 choice  For one  Uppercase latter…

Q: How many passwords can be made if each password a sequence of 4 uppercase followed by a consonant…

A:

Q: (a) How many bit strings of length 8 are there? (b) How many bit strings of length 8 or less are…

A:

Q: How many ways are there to choose a password that has a length of 20 that contains only lowercase…

A: We have to find out no. Of ways..