Exam 7: Wan Transport Methods

ISDN uses a frame format at ISDN Layer 2 that is called ____.

____ is intended as an alternative to networking technologies that use coaxial or fiber-optic cable.

The T in NTU stands for ____.

____ is used to determine the fastest communications routes on telecommunications WANs.

X.25 is connection-oriented.

High-speed Fast Ethernet technologies are beginning to challenge SONET and frame relay for dominance in Ethernet-based metropolitan area networks.

What is the difference between circuit and packet mode when connecting to ISDN? When are they used?

In the US, PRI consists of ____ 64-Kbps channels.

The figure above is an example of a(n)____________________.

X.25 offers bandwidth up to 2.048 Mbps.

Which is a method of connecting PRI ISDN into the customer?

The X.25 Packet Protocol layer is like the OSI ____ layer.

List and briefly describe the methods used by an X.25 network to transmit data packets.

List and describe the methods of placing digital signals on the network.

The S is DSL stands for ____.

SMDS incorporates layers that correspond to the Network and Physical layers of the OSI model.

____-ISDN is a developing technology intended for compatibility with ATM and SONET.

X.25 includes the LAPD protocol.

____ is the least universally available.

An advantage of RADSL is that the line length can be greater in situations where not all of the bandwidth is used, so it can accommodate customers who are more that 5.5 kilometers from the telco.