CompTIA Network+: The OSI Reference Model

 

Question:

At the Transport Layer of the OSI Model, a connection-oriented protocol is one that __________.

• checks for and corrects errors

Question

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Standards described at the Presentation Layer of the OSI Model indicate that scrambling the data so it cannot be read is a responsibility handled at this layer. This scrambling of data is known as __________.

• Encryption

Question

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What is the purpose of the OSI model?

• Standardize the networking environment to allow interoperation among networks

Question

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What is the name given to a block of data at the Data Link Layer of the OSI that has been encapsulated with the addressing information?

• Frame

Question

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This is a protocol operating at the Application Layer of the OSI Model and is used to transfer files.

• FTP

Question

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At the Session Layer of the OSI Model, the protocols should determine the level of dialog used for communication. 

 

Which level indicates that during a two-way data transfer only one node at a time can communicate over the medium?

• Half Duplex

Question

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OSI standards at the Physical Layer define the characteristics that should be considered for items such as ____.

• Cable Connectors

Question

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The concept of taking blocks of data that may be too large for transmission along the data path at the Network Layer of the OSI model and breaking them into smaller blocks is known by what term?

• Fragmentation

Categories: CompTia Network+