Which configuration filters out DOT1X messages in the format shown below from being sent toward Syslog server 10.15.20.33? Nov 20 13:47:32/553 %DOT1X-5-FAIL:Authentication failed for client (e04f.438e

The `facility` keyword filters based on the syslog facility code (e.g., LOCAL7, USER), not on the message content 'DOT1X'.

The `logging discriminator` command with `msg-body drops` allows filtering based on a regular expression match within the syslog message body. Specifying `DOTX` as the pattern effectively targets and drops messages containing related authentication failure text, such as 'DOT1X-5-FAIL' from the example.

The `mnemonics` keyword filters based on the mnemonic code (e.g., FAIL), not on 'DOTX', and `includes` would retain messages rather than drop them.

The `mnemonics` keyword filters based on the mnemonic code (e.g., FAIL), not on 'DOT1X', and `includes` would retain messages rather than drop them.