Question:
What are two reasons for physical11 layer protocols to use frame encoding techniques? (Choose two.)
- to reduce the number of collisions on the media
- to distinguish data bits from control bits
- to provide better media error correction
- to identify where the frame starts and ends
- to increase the media throughput
- to distinguish data from control information
Explanation: An encoding technique converts a stream of data bits in a predefined code that can be recognized by both the transmitter and the receiver. Using predefined patterns helps to differentiate data bits from control bits and provide better media error detection.
Exam with this question: CCNA 1 Chapter 4 Exam Answers
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