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Questions and Answers
What is a computer network?
An interconnection of two or more computers enabling communication and sharing resources.
What are the five basic components of a computer network?
Message, Sender, Receiver, Transmission media, Protocol.
What is a Node in a computer network?
Which of the following are types of resources shared in a computer network? (Select all that apply)
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What type of network is typically used for communication over a city or large campus?
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What is a common disadvantage of Local Area Networks (LAN)?
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The main purpose of a Network Interface Card (NIC) is to format, send, and receive data.
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What are the advantages of a computer network?
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What is a peer-to-peer network?
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In a Local Area Network, devices are typically connected through ______.
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Which of the following is considered a Wide Area Network (WAN)?
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Study Notes
Interconnecting Computers
- A computer network allows computers to communicate and share resources
- Nodes are connection points on the network that can receive, create, send or store data
- Transmission Media connects devices using wires, cables or radio waves
- Protocols govern how devices communicate
- Networks allow resource sharing, communication, data exchange, and information sharing over broad areas.
Key Components of a Computer Network
- Computers
- Cables connecting computers
- Network Interface Card (NIC) formats data, sends data, and receives data at the designated node
- Switches
- Operating System (OS) software
Benefits of Computer Networks
- Sharing resources like printers and software
- Connectivity allowing communication between computers
Sharing Resources
- Hardware such as printers, modems, fax machines, CD-ROM players, etc.
- Software reduces the cost of installation.
Additional Benefits of Computer Networks
- Increased speed
- Reduced cost
- Improved security
- Centralized software management
- Flexible access
Disadvantages of Computer Networks
- High installation cost
- Requires time for administration
- Server failures
- Cable faults
Types of Computer Networks
- Local Area Network (LAN): Used for communication in an office building or home
- Metropolitan Area Network (MAN): Spans a larger area than a LAN, like a whole city
- Wide Area Network (WAN): connects multiple LANs together, the internet is the world's most popular WAN
- Personal Area Network (PAN): Connects a single persons' devices like a Bluetooth headset to a phone
Local Area Network (LAN)
- Enables sharing of resources like files and hardware
- Advantages: speed, cost efficiency, security, email, resource sharing
- Disadvantages: expensive installation costs, requires administrative time, file server failure, potential cable breakage
Metropolitan Area Network (MAN)
- Optimized for a large geographical area
- Examples include high-speed DSL and cable TV networks
Wide Area Network (WAN)
- Multiple LANs connected through devices like bridges, routers, and gateways, enabling them to share data
- The internet is the most widely known WAN
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Description
This quiz covers the essential components and concepts of computer networking. You will learn about nodes, transmission media, protocols, and the benefits of interconnected systems. Test your knowledge on resource sharing and the key elements that make up a computer network.
