Question 61
Is the following description correct? Ethernet technology is a widely used technology, divided according to different transmission rates, there are10M,100M,1000MThree categories, of which10Mversus100MThe common transmission medium of Ethernet is twisted pair, but1000MDue to the high speed of Ethernet, optical fiber must be used as the transmission medium.
Question 62
The router mainly works inOSIWhich layer in the model?
Question 63
Which is the default read community and write community of SNMP V2?
Question 64
In the EPON network, which parameter is used to filter the downstream data on the ONU?
Question 65
Which interfaces in the UA5000 IPMD single board are used to communicate with PVMD and implement VOIP services?