Exam 9: Wide Area Networks

With IP services, the ________ at the sending site takes the outgoing message which usually is an Ethernet frame containing an IP packet), strips off the Ethernet frame and uses the IP address in the IP packet to route the packet though the carrier's packet‐switched network to its final destination.

Frame relay is a reliable packet service.

_____________ is sometimes called a Layer 2.5 technology.

Datagrams are connection-oriented.

Which of the following is not a way to reduce network demand?

Full mesh design networks are more common than partial mesh design networks.

A star topology is:

A dedicated circuit is usually not available late at nights or on weekends.

Basic rate interface:

Each state or Canadian province has its own ___________ to regulate communications within its borders.

__________ is a term that refers to the speed in converting input packets to output packets.

To connect into a packet switched network, a network terminator is generally used.

Suppose you joined a company that had a WAN composed of SONET, T carrier services, and frame relay, each selected to match a specific network need for a certain set of circuits.Would you say this was a well-designed network? Explain.

_____ are dedicated digital circuits that are the most commonly used form of dedicated circuit services in North America today.

Which of the following is not a key issue to be considered when selecting a WAN service?

Dynamic routing:

_____________ is a common standard for use by layer 2 access VPNs for encapsulation.

WANs can connect BNs across distances that can span up to thousands of miles.

A _______ geometric layout for a WAN connects all computers to one central computer that routes messages to the appropriate computer, usually via a series of point-to-point dedicated circuits.

Where does packetizing take place?