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IP Engineering > Week 1: TCP/IP Model > Flashcards

Week 1: TCP/IP Model Flashcards

1
Q

What are the 7 Layers in the OSI Model?

A 
Application
Presentation
Session
Transport
Network
Data Link
Physical
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2
Q

True of False: The Layers in the TCP/IP Model exactly match those in the OSI Model

A

False, they do not exactly match

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3
Q

How many layers are in the TCP/IP Procotol Suite?

A

5

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4
Q

What are the 5 layers in the TCP/IP Protocol Suite?

A 
Application
Transport
Network
Data Link
Physical
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5
Q

What can the data flow be described as at the Application Layer?

A

Process-to-Process

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6
Q

What can the data flow be described as at the Transport Layer?

A

Host-to-Host

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7
Q

What does data that is transmitted across a network to another device undergo?

A

Encapsulation

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8
Q

What are the 2 events that occur when data is encapsulated?

A

The data is wrapped with protocol information at each layer of the OSI Model
Each layer communicates only with its peer layer on the receiving device

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9
Q

Application Specific Addresses relate to which TCP/IP Model Layer?

A

Application

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10
Q

Port Numbers relate to which TCP/IP Model Layer?

A

Transport Layer (TCP & UDP)

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11
Q

IP Addresses relate to which TCP/IP Model Layer?

A

Network (IP & IPv6)

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12
Q

Physical Addresses (MAC Addresses) relate to which TCP/IP Model Layer?

A

Network Access & Physical (Network Access Protocols)

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13
Q

How many bits/bytes do most local-area networks use for the MAC Address?

A

48-bits (6 Bytes)

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14
Q

What does each device (computer or router) have for connection?

A

A Logical & Physical Address

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15
Q

How many bits are used to represent a Port Address?

A

16 bits

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16
Q

What properties of a PDU (Protocol Data Unit) change from hop to hop?

A

The Physical Address (MAC) will change from hop to hop

17
Q

What properties of a PDU (Protocol Data Unit) will NOT change from hop to hop?

A

The Logical and Port Addresses usually remain the same

18
Q

What is a Protocol Data Unity (PDU) composed of?

A

A Frame that contains a Packet which contains a Segment

19
Q

What is a Segment composed of?

A

Source Port
Destination Port
Data

20
Q

What is a Packet composed of?

A

Source IP
Destination IP
Protocol
Segment

21
Q

what is a Frame composed of?

A 
Destination MAC
Source MAC
Ether-Field
Packet
FCS
22
Q

What is the PDU-related component that is made and Header that is attached at the Transport Layer?

A

Segment

TCP Header

23
Q

What is the PDU-related component that is made and the Header that is attached at the Network Layer?

A

Packet

IP Header

24
Q

What is the PDU-related component that is made and the Header that is attached at the Data Link Layer?

A

Frame

LLC Header & subsequent MAC Header

25
Q

What is a PDU?

A

A Protocol Data Unit is encapsulated data with a Layer-respective header. Upper Layer PDU’s make the lower Layer’s data/payload

IP Engineering (15 decks)

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