Chapter 3 Network Protocols and Communications Flashcards Preview

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Flashcards in Chapter 3 Network Protocols and Communications Deck (10):
1

What is the Layers of the OSI Model
3.2.4.4
3.2.4.1

7. Application
6. Presentation
5. Session
4. Transport
3. Network
2. Data Link Layer
1. Physical Layer

2

What is the TCP/IP Model
3.2.4.4

4. Application Layer
3. Transport
2. Internet
1. Network Layer

3

What is the protocol data unit (PDU) for the Physical Layer?
3.3.1.2

Bits - A Physical layer PDU used when physically transmitting data over the medium

4

What is the protocol data unit (PDU) for the data Link Layer?
3.3.1.2

Frame – Data Link access layer PDU

5

What is the protocol data unit (PDU) for the Network Layer?
3.3.1.2

Packet - Network layer PDU

6

What is the protocol data unit (PDU) for the Transport Layer?
3.3.1.2

Segment - Transport layer PDU

7

What is the protocol data unit (PDU) for the Application Layer?
3.3.1.2

Data - The general term for the PDU used at the application layer

8

What order is the Encapsulation process
3.3.1.3

1) Data - User
2) Segment - Transport
3) Packet - IP
4) Frame - Ethernet

9

What is a physical address?

A Physical address is a 48-bit flat address burned into the ROM of the NIC card which is a Layer1 device of the OSI model. This is divided into 24-bit vendor code and 24-bit serial address

10

What is a Logical Address?

A Logical address is a 32- bit address assigned to each system in a network. This works in Layer-3 of OSI Model. This would be generally the IP address.