Exam 13: Enterprise and Wide Area Networks

The organization building the WAN is always referred to as the customer, and the equipment at the customer site that's usually the responsibility of the customer is called the ____.

When the router receives a packet, it analyzes the packet's destination network address and looks up that address in its routing table.

The device that passes data from the customer LAN to the DCE is called the data terminal equipment (DTE).

A ____ represents the oscillation of a sound wave that carries one bit of data.

What is SLIP?

____ virtual circuits are established when needed and then terminated when the transmission is completed.

What is multiplexing?

Developed in the mid-1970s, the ____ specification provided an interface between public packet-switching networks and their customers.

The connection between the demarcation point and the CO is called the local loop or ____________________.

____ is a digital communications technology developed in 1984 to replace the analog telephone system.

The device that sends data to (and receives data from)the local loop is called ____.

A V.90 modem uses a technique called ____ that digitizes analog signals.

The International Telecommunications Union (ITU)developed the ____ standards to define modem speed.

Many packet-switching networks use channels to provide temporarily "dedicated" pathways between two points.

____ bridges can connect different types of networks.

One of the most widely used high-speed digital lines is the ____, a DDS technology that uses two two-wire pairs to transmit full-duplex data signals at a maximum rate of 1.544 Mbps.

What is frame relay?

With respect to a modem, what is asynchronous communication?

To establish a WAN link to remote computers and networks, a LAN can use the same telecommunications network you use to talk on the phone; this network is often referred to as public switched telephone network (PSTN)or ______________________________ (POTS).

When using a ____ algorithm, the router relies on speed of the links, referred to as cost, between networks to determine the lowest metric.