BB Net+ Ch2 Flashcards

1
Q

What goal was the ISO trying to achieve when they created the OSI model? Pg 28

A

Creating a protocol that would allow compatibility between network devices and software made by different vendors.

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2
Q

Explain binding in the context of the OSI model. Pg 29

A

The communication processes that are related to each other are bound, or grouped together, at a particular later.

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3
Q

What are the important benefits of the OSI model? Pg 29-30

A

-network communication process are separated thus enabling easier development, design, and troubleshooting.-Allows multiple vendors to work on protocols thru standardization of network components.-encourages industry standardization by specifically defining the tasks of each layer-allows various types of network hardware and software to communicate-prevents changes in one layer from affecting another

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4
Q

What are the seven layers of the OSI model (from 1st to 7th)? What are their functions? Pg 30

A

1 - Physical - Physical topology2 - Datalink - framing3 - Network - routing4 - Transport - end-to-end connection5 - Session - dialog control6 - Presentation - data encryption, compression, and translation services7 - Application - file, print, message, database, and application services

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5
Q

What do the top 3 layers of the OSI model do? Pg 31

A

Define the rules of how the applications working within host machines communicate with each other as well as with end users.

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6
Q

What do the bottom 4 layers of the OSI model do? Pg 31

A

Define how the actual data is transmitted from end to end.

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7
Q

The application layer chooses and determines the availability of __________ ______ along with the _____ necessary to make their required connections. Pg 32

A

communicating partners, resources

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8
Q

T/F Web browsers reside within the application layer. Pg 32

A

False. Web browsers interface with the application layer, they do not reside in it.

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9
Q

Summarize the function of the presentation layer. Pg 33

A

Presents data to the application layer, translates incoming data, and formats code.

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10
Q

Summarize the function of the session layer. Pg 33

A

Keeps applications’ information separated from other applications’ data.

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11
Q

Summarize the transport layer. Pg 33

A

Segments and reassembles data into a data stream.

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12
Q

What is connection oriented communication? Pg 34

A

A sender and receiver establish a connection prior to sending data. (Similar to “shaking hands” before conversing with someone)

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