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Exam 7: Network Reference Models and Standards

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Question 1

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The Transport layer PDU includes a field for window size. What is the window size?

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The window size is a negotiate...

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Question 2

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What is the significance of the MTU field as it relates to the Transport layer? Give an example of an MTU and how it is used.

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The Transport layer manages data transfe...

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Match each item with a statement below. a.Application layer b.Presentation layer c.Session layer d.Transport layer e.Network layer f.Data Link layer g.Physical layer h.Media Access Control sublayer i.Logical Link Control sublayer j.OSI reference model -This sublayer is responsible for error recovery.

What does the Transport layer use to determine the size of a segment?

What is a PDU?

List the layers of the OSI model from the top down, along with their counterparts in the TCP/IP model.

How can you find out what your MAC address is? (Choose all that apply.)

Which layer is responsible for establishing communication setup between the source and destination computers?

The ____________ layer is the bottom layer, whose job it is to convert bits into signals and vice versa.

What does the Transport layer use to make sure that a message is reassembled correctly on the receiving device?

The process of stripping the header and trailer from a PDU is called ____________.

Which of the following is the correct order of the layers of the OSI model from layer 1 to layer 7?

What function does the Logical Link Control sublayer of the Data Link layer provide?

Match each item with a statement below. a.Application layer b.Presentation layer c.Session layer d.Transport layer e.Network layer f.Data Link layer g.Physical layer h.Media Access Control sublayer i.Logical Link Control sublayer j.OSI reference model -Hubs operate at this layer.

You are working at the help desk and you get a message that a user cannot access the Internet. You open a command prompt, ping the workstation's IP address, and get a response. You ask the user to try the Internet again. He does so with the same result-no connection. Which type of device is most likely to be the problem?

What are the sublayers of the Data Link layer, and what do they do?

The PDU at the Data Link layer is called a ____________.

Match each item with a statement below. a.Application layer b.Presentation layer c.Session layer d.Transport layer e.Network layer f.Data Link layer g.Physical layer h.Media Access Control sublayer i.Logical Link Control sublayer j.OSI reference model -This layer uses port numbers as source and destination identifiers.

How does the window size provide flow control?

The maximum transmission unit for Ethernet is 1518 bytes.