Exam 9: Network Organization Concepts

The ___,which makes technical recommendations about data communication interfaces,took on the task of creating a universal network architecture,resulting in the OSI Reference Model.

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 ____ path-selection approach,the destination and sequence number of a packet are 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.

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

Carrier sense multiple access (CSMA)is a ____-based access protocol.

When deciding which network topology configuration to use,designers should keep in mind four criteria: ____.

In the distributed-queue,dual bus (DQDB)protocol,a node can use Bus 2 to send a ____ to its upstream neighbors.

Under the Domain Name Service (DNS)protocol,in the address someone@name1.name2.name3.name4,the host name is ____.

Round robin access control is an inefficient technique when there are many nodes transmitting over long periods of time.

When using a ring topology,a ____ can be used to connect to another network that uses the same protocol.

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

The maximum circumference for a MAN is ____.

The tree topology is a collection of rings.

In a bus network topology,devices are physically connected by means of cables that run between them,and the cables pass through a centralized controller mechanism called the bus.

A ____ includes information technology that operates within a radius of approximately 10 meters of an individual and is centered around that one person.

A ____ is a device and software used to connect two or more local area networks or systems that use different protocols;it translates one network's protocol into another,resolving hardware and software incompatibilities.

In the OSI transport protocol model,Layer Seven,the ____ layer,provides the interface to users and is responsible for formatting user data before passing it to lower layers for transmission to a remote host.

A common goal of all networked systems is to provide a convenient way to share resources while controlling users' access to them.

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

When using the routing information protocol (RIP)to transfer data from one network to another,the path ____ is chosen.