1. A method for detecting data errors associated with a Content Addressable Memory (CAM) module, comprising: generating a key-based parity word and a key-based protection word after receiving a key, wherein the key-based parity word and the key jointly define a comparand; accessing a predetermined protection word corresponding to an address of a CAM module that contains data corresponding to the comparand in response to receiving the address from the CAM module; and comparing the predetermined protection word with the key-based protection word for facilitating issuance of an output error indication when the predetermined protection word is different than the key-based protection word.