Social ________ sites allow you to read opinions and write your own opinion of places such as hotels and restaurants

The primary difference with ________ e-commerce and shopping at a physical store is that it is not place or time specific.

a. B2C b. C2B c. B2B d. C2C

Which of the following are characteristics of the core layer of a hierarchical design? (Choose all that apply.)

a. Rapid convergence b. Aggregates WAN connections at the edge of the campus c. High availability d. Connects users e. Connects remote sites f. Fast packet switching