DATA LINK LAYER WIRED NETWORKS
DATA LINK CONTROL DLC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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8
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9
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3
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6
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Detailed explanation-1: -The last digit of a barcode number is a calculated check digit. The check digit is calculated from all the other numbers in the barcode and helps to confirm the integrity of your barcode number.
Detailed explanation-2: -All UPC (Universal Product Code) barcodes include a modulo-10 check digit. The UPC check digit is the twelfth digit, located to the far right of the UPC number. The first 11 digits in a UPC barcode are the assigned company prefix and the company-assigned product number. The 12th and final digit is the UPC check digit.
Detailed explanation-3: -What is a Check Digit? A check digit is a digit that is appended onto an identifier using a set algorithm so a vendor can quickly verify whether the identifier you have given is a valid one. For example, if you have a credit card with a 16 digit account number, the number is generated as a 15 digit number.