Net+ M1.2 Lesson

Open Ended

If something is a "model," what does it actually mean?

Drag and Drop

 




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Pizza Away

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Please

Do

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Drag and Drop

 




​ Please ​

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​ Sausage ​

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Away

Drag these tiles and drop them in the correct blank above

Do

Not

Throw

Pizza

Home

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Dropdown

What year was the OSI model published?​

Select answer

Open Ended

Look at 1.2.2, what is a network protocol?

Open Ended

Look at 1.2.2, explain addressing.

Open Ended

Look at 1.2.2, explain ENCAPSULATION.

Dropdown

A network will involve the use of many different ​

Select answer

operating at different layers of the OSI model. At each layer, for two ​

Select answer

to communicate they must be running the same protocol. The protocol running at each layer ​

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with its peer layer on the other node. This communication between nodes at the same layer is described as a ​

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. To transmit or receive a communication, on each node, each layer provides ​

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for the layer above and uses the services of the layer below. This is referred to as adjacent layer interaction.

Dropdown

At each level (except the Physical layer), the sending node adds a ​

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to the data ​

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, forming a “chunk” of data called a ​

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OSI in the real world

How does OSI connect to this room?

Protocol: Read/Write
Source: Teachers Desk
Destination: Student Seat @ R2:S4

Data is Index Card with 'hello' on it
(prot:R/W((s:td;d:ssr2s4)(data='hello')))

Open Ended

Transmission media can be classified as (two things)

Multiple Choice

Cabled media examples are

• USB cables, HUBs

• HDMI cables, VGA

• Ethernet cables
• Twisted pair cables, coaxial cables, fiber optic cables

Multiple Choice

An area of a larger network is called a

• zone
• area
• segment
• region

Open Ended

Why is it important to segment a network?

Categorize

Options (5)

construction of cable

interface/connector form factor

number and function of pins

radio transceiver

antenna specs

Physical interface—Mechanical specifications for the network medium.

cabled

wireless

Open Ended

On 1.2.3, what does signaling mean?

Match

Match these roles

• The part of a network interface that sends and receives signals over the network media. 

  
  

• A device that amplifies an electronic signal to extend the maximum allowable distance for a media type. 

• A multiport repeater, deployed as the central point of connection for nodes. 

• A device that converts one media signaling type to another. 

transceiver

receiver

hub

media converter

• transceiver

• receiver

• hub

• media converter

HOW data operates across a physical network

Logical Topology

Contains: bits from layer 1
Header Fields: source/destination + error checker

Layer 2 FRAME

Multiple Choice

When a device, located at AA needs to send data to a device at AC, which network appliance keeps track of those destinations?

• Switch
• Hub
• Modem
• Router

Open Ended

In 1.2.4, what does a bridge do?

Open Ended

Why is a SWITCH better than a BRIDGE?

Multiple Choice

This allows nodes with wireless network cards to communicate and creates a bridge between wireless networks and wired ones.

• Router
• Network switch
• Modem
• Wireless access point

moves data around the internetwork
uses logical network and host IDs
main appliance is a router

​Network Layer

Multiple Choice

In layer 3, packets are forwarded router by router or otherwise known as

• hop by hop

• switch by switch

• LLP by LLP

Multiple Choice

Network security is important at layer 3 because of data moving on the internetwork; a firewall is placed because it has THIS function

• access control list

• security features

• virus blocking

• filter list

access control list

set of addresses that your firewall allows/disallows

ex: roblox

ACL

Open Ended

What does the network layer (3) do?

Match

match the terms to the layers

• frames

• packets

• segments

2

3

4

• 2

• 3

• 4

Multiple Choice

In layer 4, what header attached to the segment to help the data know where it needs to go?

• applications port number

• source IP

• dest IP

• protocol number

Transport layer, if necessary, can send packets again if they are damaged

Layer 4

multilayer switch (load balancer)

advanced firewalls

intrusion detection systems

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Devices at layer 4

Open Ended

What does layer 4 do?

Reorder

Reorder the last 3 layers

• Session

• Presentation

• Application

1

2

3

• 1
• 2
• 3

Match

Match the layer to the function

• helps open and close a dialog and does this many times

• responsible for making the data make sense for the application

• provides an interface for software programs on network hosts that have a connection to exchange data

session

presentation

application

• session

• presentation

• application

Word Cloud

describe the OSI model in one word

​Copy this table into your notebook

​Independent Work

1. Complete 1.2.9

2. Create the OSI model in Adobe Express (or another editor as a grade)