Exam 8: Communications and Networks

One of the most dramatic changes in connectivity and communications in the past few years has been ________.

In a client/server network,the ________ provides access to resources and services.

Network operating systems (NOS)control and coordinate the activities of all computers and other devices on a network.

WiMax stands for ________.

Modulation is the name of the process of converting from digital to analog.

In a peer-to-peer network,only the central host computer supplies the resources,the other computers request resources from this host.

TCP/IP protocol involves identifying,sending,and receiving devices and breaking information into small parts for transmission across the Internet.

Describe the four categories of bandwidth.

________ is the process of breaking down information sent or transmitted across the Internet into small parts.

Compare the high-speed connection services: DSL,cable,fiber-optic service (FiOS),satellite,and cellular services.

A ________ network system uses central servers to coordinate and supply services to other nodes on the network.

In a wireless LAN,all communications pass through the network's centrally located wireless access point or ________ station.

Using this type of communications channel,several users can simultaneously use a single connection for high-speed data transfer.

Explain how intranets and extranets are useful in supporting communication in an organization?

The ________ is the central node that coordinates the flow of data by sending messages directly between the sender and receiver nodes.

What are the advantages and disadvantages of using a peer-to-peer system?

________ are countrywide and worldwide networks.

This type of network topology does not use a specific physical layout.

Cellular services use ________ to provide wireless connectivity to the Internet for smartphones.

Organizations use the following to allow suppliers and others limited access to their networks.