What are the pin assignments for 1Gbps and 10Gbps?

The center of the circle drawn by the statement gr.DrawEllipse(Brushes.Red, 10, 20, 40, 40) has coordinates

(A) (30, 40). (B) (10, 20). (C) (20, 40). (D) (40, 40).

Which two devices are needed when a digital leased line is used to provide a connection between the customer and the service provider? (Choose two.)

A. dialup modem B. access server C. DSU D. CSU E. Layer 2 switch