Exam 9: Introduction to Metropolitan Area Networks and Wide Area Networks

When a network or a part of a network becomes so saturated with data packets that packet transfer is noticeably impeded,____ occurs.

In a(n)____________________ packet-switched network,all packets that belong to a logical connection can follow the same path through the network.

The major disadvantage of flooding is the large number of copied packets distributed throughout the network.

With ____ routing,routing tables are created once,typically when the network is installed,and then never updated again.

A connection-oriented network application provides what is called a(n)___________ service.

____________________ routing is a technique that uses a routing algorithm to generate routing information and dictates that this information be stored at distributed locations within the network.

To provide a reliable service,the network requires that a logical connection be established between the two endpoints.

All wide area networks are collections of at least two basic types of equipment: a station and a ____.

A wide area network would not exist without a sub-network.

The ____-switched network is most often found in networks designed to transfer computer data (such as the Internet).

Circuit-switched networks were designed primarily for voice signals.

A wide area network connects its workstations through the use of a ____ design and requires routing to transfer data across the network.

____ and virtual circuit networks require path setup time and cannot dynamically reroute packets should a network problem occur.

Most wide area networks use some form of Dijkstra's algorithm to determine a least-cost route through a network.

____ avoids congestion by requiring users to negotiate with the network regarding how much traffic they will be sending,or what resources the network must provide to satisfy the user's needs before the user sends any data.

____ and distributed routing are methods for controlling routing information.

Many of the same technologies and communications protocols found in local area networks are used to create metropolitan area networks.

A ____ area network is typically confined to a single building or a couple floors within one building.

SONET rings typically have a failover time of ____ milliseconds.

A classic algorithm that calculates a least-cost path through a network is ____ algorithm.