Network Fundamentals

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• LAN and WAN

• VPN and extranet

• VPN and Internet

• Secure DNS and VPN

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• switch/hub

• router

• firewall

• switcher

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• LAN

• WAN

• SAN

• PAN

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• Virtual

• Extended

• Secure

• Storage

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• VPAN

• VLAN

• VSAN

• VWAN

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• LAN and VLAN

• SAN and VSAN

• WAN and VWAN

• PAN and VPAN

What is a purpose of a communication protocol?

• Provides reliable, ordered, and error-checked delivery of a stream of octets between applications running on hosts communicating by an IP network

• Does not provide a reliable, ordered, and error-checked delivery of a stream of octets between applications running on hosts communicating by an IP network

• Provides reliable, but not ordered, and error-checked delivery of a stream of octets between applications running on hosts communicating by an IP network

• Provides reliable, ordered, and error-checked delivery of a stream of octets between applications running on hosts communicating by an MAC network

Explain what a "host" is

• A machine that connects to other computers forming a bot-network.

• A parasite carrier

• A machine that allows other computer to access something on this machine.

• A machine that automatically troubleshoots users.

List network topologies

• Duck,Horse,Manhattan,Mesh,Star and Capital.

• Circular,Car,Rose chain,Square,ring and chocolate.

• Point-to-point,Bus,Ring,Mesh,Star and daisy chain.

• Point-to-dome,Plane,Oval,Squid,Planet and daisy chain.

Which one is an example of WAN?

• Home Wi-Fi
• The Internet
• An intranet
• Private network of a company