... 1999 Lecture- 09 Error Sources, Detection and Correction Error Sources, Detection and Correction The Data Link Layer [Ref: Chap-5 Fitzgerald & Dennis, Chap-5 p.142 Stallings] Error ... Telecommunications, Fall 1999 Lecture- 09 Error Sources, Detection and Correction Error Detection Methods: • Parity Checking The oldest, simplest and least effective method of error detection is parity ... failure or power outages. lecture 09 .doc Page 2 (6) CSN200 Introduction to Telecommunications, Fall 1999 Lecture- 09 Error Sources, Detection and Correction Error Prevention: • Shielding...