Author Question: A main goal of the 801.11n standard is to provide for data rates of up to ________ Mbps. A) 20 ... (Read 72 times)

HudsonKB16 · **on:** Jul 7, 2018

A main goal of the 801.11n standard is to provide for data rates of up to ________ Mbps.

A) 20
B) 50
C) 75
D) 100

Question 2

What is the role of common carriers in a WAN?

What will be an ideal response?

bd5255 · **Reply #1 on:** Jul 7, 2018

Answer to Question 1

D

Answer to Question 2

Business data communication needs may require that data be transported over great geographic distances, such as across a state, several states, a country, or even around the world. A network on this scale is called a wide area network (WAN). A WAN will very commonly use circuits provided by common carriers. In our discussion, a common carrier is a business or company that provides communication services of varying types to the general public. Common carriers include such organizations as Sprint, MCI, and AT&T, among others. A WAN can connect BNs and MANs. The infrastructures that create and support a WAN are heavily regulated. Figure 2.6 illustrates a WAN that spans a continent.