Lesson
Lesson-2.1.10 -Describe how an automatic repeat query (ARQ) can be used to establish that data is received without error.
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Lesson-2.1.9- Describe how a check digit is used to detect errors in data entry and identify examples of when a check digit is used, including international standard book numbers (ISBN) and bar codes.PreviousLesson-2.1.11- Understand the need for and purpose of encryption when transmitting data.Next