Network Models and Types of Networks Summary (copy)

What is the purpose of networking protocol and reference models?

To facilitate communication between devices across networks.

What does the OSI model stand for?

Open Systems Interconnection model.

How many layers does the OSI model have?

Seven layers.

What is the main function of the Application layer in the OSI model?

It provides network services for end-user applications.

What does encapsulation refer to in networking?

The process of adding control information as data passes through layers.

Define a Local Area Network (LAN).

A network that covers a limited geographic area, allowing private internal communications.

What distinguishes a Wide Area Network (WAN) from other networks?

It connects geographically distant Local Area Networks (LANs), such as the Internet.

What are Protocol Data Units (PDUs)?

The form that data takes at each layer of the network model.

What is the function of the Transport layer in the OSI model?

It defines and numbers data segments and reassembles data.

Describe what a Personal Area Network (PAN) is.

A small scale network that revolves around a single person, often for personal devices.

What is the significance of the TCP/IP model?

It helps understand the implementation of protocols in current networks.

Identify the difference between physical and logical topology.

Physical topology refers to the physical layout of devices, while logical topology defines how the medium is accessed for data transmission.

What type of network connects LANs within a common geographic area?

Metropolitan Area Network (MAN).