3. Network Fundamentals Flashcards

1
Q

Ports and Protocols

What are protocols

A

set of rules and the format of data and how to work with it when any two systems are communicating.

Defines the set of rules for any given device to be able to commuincate with any other device.

Two types -

TCP - Transmission Control Protocol
IP - Internal Protocol

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2
Q

Port and Protocols

What is a port

A

Associated with a particular service program, and allow any given computer to send and receive may different types of traffic.

Help to aid and understand with to do with the data once recieved.

Identifies exactly which service the client is requesting

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3
Q

TCP vs UDP Protocols

What are features with TCP

A

The delivery of every packet is guaranteed, meaning that any lost packets are retransmitted

Very reliable protocol

Example - HTTPS, HTTP

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4
Q

TCP vs UDP Protocols

What is UDP

A

User Datagram Protocol

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5
Q

TCP vs UDP

What are the features of UDP

A

Does not implement any type of connection

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6
Q

TCP vs UDP

What is the downside of UDP

A
  • Not reliable
  • Delivery of packets and their order is not guranteed
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7
Q

Switches and Routers

What are switches used for?

A

Simply used to connect devices together on a network.

Do not connect devices that are on a seperate network. Only use a LAN.

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8
Q

Switches and Routers

What are the different catergories of switches?

A

Managed and Unmanaged

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9
Q

Switches and Routers

Routers

A

Allows devices to access the internet.

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10
Q

Switches and Routers

What is a extender?

A

Creates a new wireless network

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11
Q

Patch Panels

What is a patch panel?

A

Collection of ports on a panel. Acts as central location where all the wires from all locations can come together in a sinlge location.

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12
Q

Firewalls

What is the purpose of a firewall?

A

Enhance the security of an environment by controlling inbound and/or outbound network or host traffic.

Use rules to allow or deny traffic an implemented as either a dedicated hardware device or as software device.

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