a. Distinguish between dedicated and multiplexed transmission links.

4a.) Trunk lines in the Internet core are ____________.

a. Dedicated

b. Multiplexed

c. Both A and B

d. Neither A nor B

b. If 100 conversations averaging 50 Mbps are multiplexed on a transmission line, will the required transmission line capacity be less than 5 Gbps, equal to 5 Gbps, or more than 5 Gbps?

c. What is the business benefit of multiplexing?

4c.) The business benefit of multiplexing is  ____________.

a. Lower cost

b. Higher speed

c. Avoiding the need to send many transmission links through narrow conduits

d. Security