Computer Networking
The main difference between synchronous and asynchronous transmission is

None of these
the pulse height is different.
the bandwidth required is different
the clocking is derived from the data in synchronous transmission
the clocking is mixed with the data in asynchronous transmission

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Computer Networking
If routers in a single area are configured with the same priority value, what value does a router use for the OSPF Router ID in the absence of a loopback interface?

The lowest IP address of any logical interface
The highest IP address of any logical interface
The highest IP address of any physical interface
The lowest IP address of any physical interface

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