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1. Whats the most significant block to high transmission efficiency in packet networks? A. switching B. packetization C. routing D. congestion 2. In a circuit-switched
1. Whats the most significant block to high transmission efficiency in packet networks? A. switching B. packetization C. routing D. congestion 2. In a circuit-switched Private Branch Exchange (PBX), what component allows it to communicate to Central Office (CO) switches? A. trunk cards B. line cards C. administrative terminal D. none of the above
A. switching
B. packetization
C. routing
D. congestion
2. In a circuit-switched Private Branch Exchange (PBX), what component allows it to communicate to Central Office (CO) switches?
A. trunk cards
B. line cards
C. administrative terminal
D. none of the above
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