Deck 16: Identification Numbers

Question 1

If the third digit of the American Express Traveler's Cheque number 390124323 is mistyped, can the check digit detect the error? Explain.

Answer 1

Not always. If it is replaced by 9, the error is undetected.

Question 2

If the third and fourth digits of the bank identification number 250150205 are transposed, can the check digit detect the error? Explain.

Answer 2

Yes. The sum will be incorrect.

Question 3

If the third and fourth digits of the blood bank identification number 4128001234567896 are exchanged, can the check digit, as described in the text, detect the error? Explain.

Answer 3

Yes. The change affects the sum.

Question 4

If the third and fourth digits of the Avis rental car number 3960040 are transposed, can the check digit detect the error? Explain.

Question 5

Is 0-1370-2990-X a viable ISBN? If not, can the second digit be changed to produce a viable ISBN?

Question 6

The last digit of the photofinishing identification number 4128001243890110 (as described in the text) may be wrong. If not, can the correct final digit be determined?

Question 7

A UPC code is reported to read 0-48000-03254-5, but the second digit is read in error. Can the correct second digit be determined?

Question 8

If the third and fourth digits of the ISBN 0-7167-4782-0 are transposed, can the check digit detect the error? Explain.

Question 9

If the first and second digits of the ISBN 0-7167-2378-6 are transposed, can the check digit detect the error? Explain.

Question 10

If the third digit of the U.S. Postal Service money order number 64389235311 is mistyped, can the check digit detect the error? Explain.

Question 11

What are guard bars?

Question 12

The ISBN code system detects all single-digit errors and single transpositions. Even so, it has a major drawback. What is it?

Question 13

If the first two digits of the Postnet code 1001025001 are transposed, can the check digit detect the error? Explain.

Question 14

If the first digit of the Postnet code 1001025001 is mistyped, can the check digit detect the error? Explain.

Question 15

A bank identification number is reported to be 017000250, but your source reports that the final digit is difficult to read and may be wrong. Is this a viable bank identification number? If not, can the correct final digit be determined?

Question 16

If the last digit of the Avis rental car number 3960040 is mistyped, can the check digit detect the error? Explain.

Question 17

How are bar codes used by the U.S. Postal Service to encode ZIP codes?

Question 18

If the last two digits of the UPC code 5-12500-65590-6 are exchanged, can the check digit detect the error? Explain.

Question 19

Why are there different methods of creating check digits?

Question 20

Where is the check digit of a VIN located?

Question 21

Determine the check digit for an airline ticket with number 76288305230.

Question 22

In the ISBN-10 method, what character will be used to represent the check digit 10?

Question 23

If the first and third digits of a bank identification number are transposed, can the check digit detect the error? Explain.

Question 24

What is the Soundex code for Katzenellenbogen?

Question 25

Is 20-7039-362-3 a valid ISBN? If not, change the check digit to correct the error.

Question 26

What are weights of an eight-digit routing number of U.S. banking system?

Question 27

Determine the check digit that should be appended to the U.S. Postal Service money order identification number 5849202911.

A) 1
B) 4
C) 5
D) 8

Question 28

Determine the check digit that should be appended to the U.S. Postal Service money order identification number 5428792351.

A) 1
B) 4
C) 6
D) 8

Question 29

How can we determine the check digit of an American Express Travelers Cheque?

Question 30

Determine the check digit that should be appended to the U.S. Postal Service money order identification number 2384943094.

A) 1
B) 4
C) 6
D) 8

Question 31

What is a digit appended to an identification number for error detection called?

Question 32

What is the Soundex code for Smith?

Question 33

Airlines are using an error detection scheme (division by 7 scheme). What are possible exceptions in detecting single errors?

Question 34

Determine the check digit for the 13-digit ISBN 978-0-553-58203- .

Question 35

Determine the check digit for a money order with identification number 5600517526.

Question 36

Determine if the MasterCard number 5211 2846 5342 1386 is valid.

Question 37

Determine the check digit for the 13-digit ISBN 978-1-59420-301- .

Question 38

If the first and third digits of a UPC code are transposed, can the check digit detect the error? Explain.

Question 39

What is the Soundex code for Voytek?

Question 40

Is 1023798 a valid Avis rental car identification number? If not, change the check digit to correct the error.

Question 41

Is the number 1023894326 a legitimate UPS package number?

A) Yes
B) No

Question 42

Determine the check digit that should be appended to the Avis rental car identification number 821922.

A) 3
B) 4
C) 7
D) 8

Question 43

Is the number 102432854931 a legitimate airline ticket number?

A) Yes
B) No

Question 44

Is the number 4839212 a legitimate Avis rental car number?

A) Yes
B) No

Question 45

Determine the check digit that should be appended to the American Express Travelers Cheque identification number 293021243.

A) 1
B) 4
C) 6
D) 8

Question 46

Determine the check digit that should be appended to the Avis rental car identification number 483901.

A) 2
B) 5
C) 7
D) 8

Question 47

Is the number 3910291 a legitimate Avis rental car number?

A) Yes
B) No

Question 48

Suppose an American Express Travelers Cheque is numbered x392063210, where the first digit is obscured. What is the missing digit?

A) 1
B) 4
C) 8
D) The missing digit can't be determined.

Question 49

Determine the check digit that should be appended to the American Express Travelers Cheque identification number 483920381.

A) 2
B) 6
C) 7
D) 8

Question 50

Suppose a U.S. Postal Service money order is numbered x3843291010, where the first digit is obscured. What is the missing digit?

A) 4
B) 5
C) 9
D) The missing digit can't be determined.

Question 51

Suppose a U.S. Postal Service money order is numbered x4839203210, where the first digit is obscured. What is the missing digit?

A) 4
B) 5
C) 8
D) The missing digit can't be determined.

Question 52

Is the number 1028343293 a legitimate UPS package number?

A) Yes
B) No

Question 53

Suppose an American Express Travelers Cheque is numbered x483920594, where the first digit is obscured. What is the missing digit?

A) 1
B) 6
C) 8
D) The missing digit can't be determined.

Question 54

Is the number 103932091202 a legitimate airline ticket number?

A) Yes
B) No

Question 55

Determine the check digit that should be appended to the UPS identification number 102839414.

A) 1
B) 3
C) 4
D) 6

Question 56

Determine the check digit that should be appended to the UPC identification number 0 12500 29301.

A) 0
B) 1
C) 3
D) 9

Question 57

Determine the check digit that should be appended to the American Express Travelers Cheque identification number 783920381.

A) 6
B) 5
C) 4
D) 1

Question 58

Determine the check digit that should be appended to the airline ticket identification number 28143298311.

A) 2
B) 3
C) 4
D) 5

Question 59

Determine the check digit that should be appended to the airline ticket identification number 85493049210.

A) 2
B) 3
C) 4
D) 5

Question 60

Determine the check digit that should be appended to the UPS identification number 112843215.

A) 1
B) 2
C) 5
D) 6

Question 61

Determine the check digit that should be appended to the UPC identification number 0 13500 47501.

A) 0
B) 2
C) 3
D) 8

Question 62

Determine the check digit that should be appended to the bank identification number 04200052.

A) 1
B) 3
C) 7
D) 9

Question 63

Determine the check digit that should be appended to the bank identification number 05200035.

A) 1
B) 3
C) 8
D) 9

Question 64

Is the number 3125700143750015 a legitimate blood bank identification number, as described in the text?

A) Yes
B) No

Question 65

Determine the check digit (as described in the text) that should be appended to the blood bank identification number 312545006987005.

A) 4
B) 3
C) 7
D) 6

Question 66

Determine the check digit that should be appended to the ISBN 0-7167-9811.

A) 2
B) 5
C) 6
D) 8

Question 67

If the UPC number 0 89901 24334 1 is incorrectly entered as 0 84401 24334 1, will the error be detected by the check digit?

A) Yes
B) No

Question 68

Is the number 3125850025490085 a legitimate blood bank identification number, as described in the text?

A) Yes
B) No

Question 69

Suppose the sixth digit of the UPC number 0 5443x 30250 0 is obscured. What is the missing digit?

A) 0
B) 3
C) 5
D) The missing digit can't be determined.

Question 70

If the UPC number 0 11500 22810 8 is incorrectly entered as 0 11500 28810 8, will the error be detected by the check digit?

A) Yes
B) No

Question 71

Determine the check digit that should be appended to the ISBN 0-7167-6531.

A) 4
B) 5
C) 6
D) 7

Question 72

Is the number 0 11300 84392 4 a legitimate UPC number?

A) Yes
B) No

Question 73

Determine the check digit (as described in the text) that should be appended to the blood bank identification number 312680013325001.

A) 7
B) 6
C) 5
D) 3

Question 74

Determine the check digit that should be appended to the bank identification number 01200021.

A) 2
B) 4
C) 7
D) 8

Question 75

Determine the check digit (as described in the text) that should be appended to the blood bank identification number 312540016220550.

A) 1
B) 0
C) 8
D) 2

Question 76

Is the number 096000361 a legitimate bank identification number?

A) Yes
B) No

Question 77

Is the number 0 11300 29432 5 a legitimate UPC number?

A) Yes
B) No

Question 78

Is the number 075000325 a legitimate bank identification number?

A) Yes
B) No

Question 79

Suppose the fourth digit of the ISBN 0-71x7-1011-0 is obscured. What is the missing digit?

A) 2
B) 3
C) 6
D) The missing digit can't be determined.

Question 80

Determine the check digit that should be appended to the UPC identification number 0 15700 37501.

A) 0
B) 1
C) 3
D) 7