Airlines Are Using an Error Detection Scheme (Division by 7

question 94

Essay

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

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Definitions:

Substitute Checks

Paper copies created from an original check that are legally equivalent for banking purposes, allowing for electronic processing.

Truncate

To shorten something by cutting off a part of it, commonly used in the context of modifying data, strings, or numerical values in computing.

Negotiable Instrument

A written document guaranteeing the payment of a specific amount of money, either on demand or at a set time.

Stock Certificate

A physical document that represents ownership of shares in a company.