Exam 1: Introduction to Computer Networks and Data Communications

In a(n)______________________________ connection,the action of a person or object triggers a sensor that is connected to a network.

The ____ in a network architecture define a model for the functions or services that need to be performed.

_________________________ are backup points that are used in case of errors or failures.

The ____ layer of the OSI model performs end-to-end connection control.

To communicate with the Internet using a dial-up modem,a user's computer must connect to another computer that is already communicating with the Internet.

____________________ are personal computers or microcomputers where users reside.

____ is the transmission of multiple signals on one medium.

Metropolitan area networks are a cross between local area networks and ____________________ networks.

A ____ is an interconnection of computers and computing equipment using either wires or radio waves over small or large geographic areas.

The personal area network was created in the late ____.

What are the components of a wide area network?

A(n)____________________ converts the local area network data into wide area network data.

___________________________________ is used to allow Web browsers and servers to send and receive World Wide Web pages.

The bottom layer in the OSI model-the ____ layer-handles the transmission of bits over a communications channel.

The International Organization for Standardization (ISO)created the ____ reference model in an attempt to standardize the design of communication systems and the interoperability between their components.

The ____________________ layer of the OSI model is responsible for taking data from the network layer and transforming it into a cohesive unit called a frame.

The TCP/IP ____ layer supports network applications and may include presentation services.

The ____ layer of the OSI model performs end-to-end error control and end-to-end flow control.

The ____ layer is the OSI layer that handles routing.

It is not possible to connect two local area networks so that they can share peripherals as well as software.