In most data-link control protocols, the data-link protocol entity is responsible not only for detecting errors using the CRC, but for recovering from those errors by retransmitting damaged frames

a) true

b) false

The answer is "Option a"

Explanation:

The Data-link protocols define how the devices are detected and recover from damages. It also provides protection mechanisms that recovers data-frames. There are many types of protocols, that include Ethernet for local area networks (LAN), multi-node, etc.

This protocol is most commonly used in the OSI model, that uses bridges and switches. This protocol implies data that delegated to the appropriate physical protocol.