术语Circuit breaker意为()。
A、电路板断路器
B、电路板控制器
C、电路板装置
D、电路板箱
A、电路板断路器
B、电路板控制器
C、电路板装置
D、电路板箱
A、switched virtual circuit B、virtual circuit status C、simple flow control D、multicasting E、permanent virtual circuit
A、 class of service B、 bandwidth profiles C、 user-network interface D、 Ethernet LAN circuit attributes E、 Ethernet virtual circuit attributes
A、 SDH circuit over a SONET network delivering it as an SDH signal B、 SDH circuit over a SONET network delivering it as a SONET signal C、 SONET circuit over an SDH network delivering it as an SDH signal D、 SONET circuit over an SDH network delivering it as a SONET signal