Exam 9: Network Organization Concepts

In a ring topology each packet is passed from node to node in both directions, and the destination station copies the data into a local buffer.

Layer 6 of the OSI model is responsible for providing a user-oriented connection service and transferring data over the communication lines.

In the OSI transport protocol model, Layer Six is ____.

When using CSMA/CD, and a collision occurs, a jamming signal is sent immediately to both sending nodes, which then wait ____ before trying again.

The geometric arrangement of connections (cables, wireless, or both) that link the nodes is called a ____.

When using the distributed-queue, dual bus (DQDB) protocol, transmission on each bus consists of a steady stream of fixed-size slots.

In the virtual circuit approach, the destination and packet sequence number are not added to the information identifying the packet's message.

There are ____ layers in the TCP/IP model.

A ____ is the specific set of rules used to control the flow of messages through the network.

Ethernet is the most widely known CSMA/CD protocol.

Bridging between two homogeneous networks occurs at the data link level.

The distributed-queue, dual bus (DQDB) protocol is intended for use with a dual-bus configuration, where each bus transports data in only one direction, and has been standardized by one of the IEEE committees as part of its ____ standards.

The objective of a hybrid configuration is to select among the strong points of each topology and combine them to meet that system's communications requirements most effectively.

In the ____ approach, the destination and sequence number of the packet is added to the information uniquely identifying the message to which the packet belongs; each packet is then handled independently and a route is selected as each packet is accepted into the network.

High-speed LANs have a data rate that varies from 100 megabits per second to more than ____ per second.

Packet switching is very similar to circuit switching.

A local area network is generally owned, used, and operated by a single organization and allows computers to communicate directly through a common communication line.

A token-passing network always uses a star topology.

____ is a good example of a circuit-switched network.

In the ____ topology, hosts are connected to one another in a linear fashion.