![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[主观题]
DNS是什么的缩写?()
A、Domain Not Set
B、Domain Name System
C、Do Not Speak
D、DDOS Not Scared
查看答案
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A、Domain Not Set
B、Domain Name System
C、Do Not Speak
D、DDOS Not Scared
B.DM is used to measure packet transport delay and delay variation from one MEP to another MEP.
C.Experimental (EX) function: send frame. for experiment use in a management domai
D.CSF is used to transmit failure signal at client layer from T-MPLS trail termination source to T-MPLS trail termination sink.
E. loopback link detectio