Q12. A network node represents end-to-end routing within a network. a. true b. false Q13. A time-staged delivery system can be used to help control network throughput. a. true b. false Q14. In addition to describing network interconnections, the OSI reference model describes network architecture. a. true b. false Q15. Which of the following is the required bandwidth for uncompressed video transmission? a. .09 mbps b. 0.9 mbps c. 9 mbps d. 90 mbps