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Methods of error detection
Recognize the importance of verifying data after it has been transmitted and understand the potential causes of errors during this process, such as data loss, gain, or alteration due to interference.
4
Objectives
40
Flashcards
28
Questions
90 min
Study time
CambridgeIGCSEComputer ScienceData transmission
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Methods of error detection outcomes4 objectives
- Recognize the importance of verifying data after it has been transmitted and understand the potential causes of errors during this process, such as data loss, gain, or alteration due to interference.
- Explain the steps involved in various methods used to detect errors in transmitted data, specifically focusing on parity checks (both odd and even), checksums, and echo checks, including details on parity bytes and blocks.
- Illustrate how a check digit functions to identify errors in data entry and provide examples of its application, such as in international standard book numbers (ISBN) and barcodes.
- Clarify how an automatic repeat request (ARQ) system ensures that data is received accurately, including the roles of positive and negative acknowledgments and the concept of timeouts.
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UnderstandIdentifyDescribeExplainGive
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