Regarding 802.1Q, the following statement is wrong:
(single) When conducting FTTx networking and data planning, consider user security. Which of the following measures can prevent user-to-user attacks?
(single) Is the following description correct? MA5600T/MA5680T GPBC/GPBD ONT loading board parallel, and supports 64 ONT parallel loading.
(multiple) What are the fax modes supported in the UA5000?