An algorithm allows a user to input their password and checks that there are at least eight characters in the password. Then, the user is asked to re-input the password to check that both inputs are the same. The user is allowed three attempts at inputting a password of the correct length and a matching pair of passwords. The pre-defined function LEN (X) returns the number of characters in the string, X 01 Attempt ← 0 02 REPEAT 03 PassCheck ← TRUE 04 OUTPUT "Please enter your password " 05 INPUT Password 06 IF LEN(Password) < 8 07 THEN 08 PassCheck ← TRUE 09 ELSE 10 OUTPUT "Please re-enter your password " 11 INPUT Password2 12 IF Password <> Password 13 THEN 14 PassCheck ← FALSE 15 ENDIF 16 ENDIF 17 Attempt ← Attempt + 1 18 UNTIL PassCheck OR Attempt < 3 19 IF PassCheck 20 THEN 21 OUTPUT "Password success" 22 ELSE 23 OUTPUT "Password fail" 24 ENDIF

1. (a)Identify the three errors in the pseudocode and suggest a correction to remove each error. Error 1 Correction Error 2 Correction Error 3 Correction[3]
2. (b)The algorithm includes two types of check on the data input. Identify and describe each type of check. Type of check 1 Description Type of check 2 Description[4]
3. (c)Give two sets of test data for this algorithm and a reason for choosing each set. Each set of test data and its reason must be different. Set 1 Reason Set 2 Reason[4]