Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 261

What is the function of the FEC field within the OTN signal structure?

Answer options

• A. It allows the sending devices to apply QoS within the OTN forwarding structure.
• B. It allows deep inspection of data payload fields.
• C. It allows receivers to correct errors upon data arrival
• D. It allows source nodes to discard payload errors before transmitting data on the network.

Correct answer: C

Explanation

The correct answer is C because the FEC (Forward Error Correction) field is designed to help receivers identify and correct errors in the transmitted data. Options A, B, and D describe functionalities that are not associated with the FEC field; they pertain to QoS, deep packet inspection, and error handling before transmission, respectively.