A circuit breaker differs from a fuse in that a circuit breaker ().
For (1) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. Instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to. 空白(3)处应选择()
Tools with ()handles should be used to check electric circuit.
A circuit breaker and a fuse have a basic similarity in that they both ().
The total power consumed in a parallel circuit is ()
Which of the following devices sets the framing type on a T1 circuit?()
A resistance in a circuit of unknown value is to be tested using the voltmeter/ammeter methodTherefore, the meters should be connected with().
In a simple series circuit, the entire source voltage will drop across ()
Inductance is the property of an electric circuit that ()
Tools with ()handles should be used to check electric circuit.