Data Comm-Chapter 1 Quiz

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Which of the following is a data link standard?

*need to find answer

Which of the following is not true about de facto standards?

they never evolve into de juro standards

Which layer of the OSI model is responsible for ensuring that all packets transmitted by a sender are received by the destination device?

transport

Which standards making body is responsible for local area networks standards?

IEEE

The network layer of the Internet model using the ________ protocol to route messages through the network.

IP

HTTP is an example of a protocol located at the _____ layer of the Internet model

application

In the Internet model, the application layer corresponds to the _______ layer(s) of the OSI model

application, presentation and session

Which of the following is a function of the tansport layer?

breaking long messages into several smaller messages

Which of the following is not a property of a WAN?

connects backbone networks and MANs, may span hundred or thousands of miles, often uses leased circuits provided by carriers such as Sprint, MCI and AT&T

In the OSI model, error checking is performed at both the ______ layers.

data link and transport

Which is not a physical layer function?

ensuring error-free transmission

A(n) _____ enables authorized customers, suppliers, and business partners are able to access a subset of resources in an organization's computer network over the Internet

extranet

Which of the following terms is sometimes used to decribe the physical and data link layers?

hardware layers

Which of the following is true about the ISO?

it makes technical recommendations about data communications interfaces, its name stands for International Organization for Standardization, and it is one of the most important standards making bodies

Layer 3 of the OSI model is the _____ layer

network

The _____ layer is responsible for routing messages from sender to final destination device across the data communications network

network

Networks designed to connect similar computers that share data and software with each other are most likely to be classified as _________ networks.

peer-to-peer

Which of the following is an important trend in data communications and networking?

pervasive networking, integration of voice, video and data, development of extremely high-speed broadband networks

________is an orderly close to a dialogue betwween end users over a data communication network

session termination

Which of the following is true about a server?

stores data and software that can be accessed by client devices

Which layer of the OSI model is responsible for ensuring flow control so tha the destination device does not receive more packets than it can process at any given time?

transport

A backbone network is a

high-speed central network that connects other networks to one another

A(n) _______ uses the same technologies as the Internet but is only accessible by authorized employees

intranet

The _____ layer of the OSI model is responsible for data format translation.

presentation

A(n) is a set of rules that determine what a layer would do and provide a clearly defined set of messages that software at the layer needs to understand.

protocol


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