Podcast
Questions and Answers
Powerline networking is especially useful when wireless access points cannot reach all the devices in the ______
Powerline networking is especially useful when wireless access points cannot reach all the devices in the ______
home
A Wireless Internet Service Provider (WISP) is an ISP that connects subscribers to designated access points or ______
A Wireless Internet Service Provider (WISP) is an ISP that connects subscribers to designated access points or ______
hotspots
Wireless broadband is another solution for the ______ and small businesses
Wireless broadband is another solution for the ______ and small businesses
home
Uses the same cellular technology used by a smart ______
Uses the same cellular technology used by a smart ______
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An antenna is installed outside the house providing wireless or wired connectivity for devices in the ______
An antenna is installed outside the house providing wireless or wired connectivity for devices in the ______
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Network security is an integral part of networking regardless of the size of the ______
Network security is an integral part of networking regardless of the size of the ______
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The network security that is implemented must take into account the environment while securing the ______
The network security that is implemented must take into account the environment while securing the ______
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Securing a network involves many protocols, technologies, devices, tools, and techniques in order to secure ______
Securing a network involves many protocols, technologies, devices, tools, and techniques in order to secure ______
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Securing a network involves many protocols, technologies, devices, tools, and techniques in order to secure ______ and mitigate threats
Securing a network involves many protocols, technologies, devices, tools, and techniques in order to secure ______ and mitigate threats
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Wireless broadband is another solution for the home and small ______
Wireless broadband is another solution for the home and small ______
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Study Notes
Network Components: Host Roles
- Every computer on a network is called a host or end device
- Servers provide information to end devices:
- Email servers run email server software
- Web servers run web server software
- File servers store corporate and user files
- Clients send requests to servers to retrieve information:
- Use client software to access email
- Use browser software to access web pages
Network Components: Peer-to-Peer
- A device can be both a client and a server in a Peer-to-Peer Network
- Advantages:
- Easy to set up
- Less complex
- Lower cost
- Disadvantages:
- Not as secure
- Not scalable
- Slower performance
- Recommended for very small networks and used for simple tasks like transferring files and sharing printers
Network Components: End Devices
- An end device is where a message originates from or is received
- Data originates with an end device, flows through the network, and arrives at an end device
Network Components: Intermediary Network Devices
- Intermediary devices interconnect end devices
- Examples include:
- Switches
- Wireless access points
- Routers
- Firewalls
- Roles:
- Regenerate and retransmit data signals
- Maintain information about network pathways
- Notify other devices of errors and communication failures
Common Types of Networks
- Small Home Networks: connect a few computers to each other and the Internet
- Small Office/Home Office (SOHO) Networks: enable computers within a home or remote office to connect to a corporate network
- Medium to Large Networks: many locations with hundreds or thousands of interconnected computers
- World Wide Networks: connects hundreds of millions of computers worldwide, such as the Internet
Common Types of Networks: LANs and WANs
- Local Area Network (LAN): spans a small geographical area, administered by a single organization or individual, and provides high-speed bandwidth to internal devices
- Wide Area Network (WAN): spans a wide geographical area, typically administered by one or more service providers, and provides slower speed links between LANs
Common Types of Networks: Intranets and Extranets
- Intranet: a private collection of LANs and WANs internal to an organization, accessible only to authorized members
- Extranet: provides secure access to an organization's network for individuals from other organizations who need access to their data
Internet Connections
- Internet access technologies:
- Broadband cable
- Broadband digital subscriber line (DSL)
- Wireless WANs
- Mobile services
- Business-class interconnections:
- Business DSL
- Leased lines
- Metro Ethernet
Internet Connections: Home and Small Office
- Connection types:
- Cable: high bandwidth, always on, internet offered by cable television service providers
- DSL: high bandwidth, always on, internet connection that runs over a telephone line
- Cellular: uses a cell phone network to connect to the internet
- Satellite: benefits rural areas without Internet Service Providers
- Dial-up: low bandwidth option using a modem
Network Trends: Cloud Computing
- Four types of Clouds:
- Public Clouds: available to the general public through a pay-per-use model or for free
- Private Clouds: intended for a specific organization or entity
- Hybrid Clouds: made up of two or more Cloud types
- Custom Clouds: built to meet the needs of a specific industry
Network Trends: Technology Trends in the Home
- Smart home technology: integrates technology into everyday appliances, allowing them to interconnect with other devices
- Examples: ovens that know what time to cook a meal based on your calendar
Network Trends: Powerline Networking
- Powerline networking: allows devices to connect to a LAN where data network cables or wireless communications are not viable
- Uses standard powerline adapters to connect devices to the LAN wherever there is an electrical outlet
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Description
Test your knowledge on various types of networks such as intranets and extranets, as well as internet connections. Learn about how intranets are private networks within an organization and how extranets provide secure access to external parties. Explore different types of internet connections as well.
