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Questions and Answers
What is a key characteristic of a P2P network?
What is a key characteristic of a P2P network?
Which computing model relies heavily on a central server for processing and storage?
Which computing model relies heavily on a central server for processing and storage?
How does distributed computing differ from parallel computing?
How does distributed computing differ from parallel computing?
What best describes a thick client?
What best describes a thick client?
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Which of the following statements is true about a client-server network?
Which of the following statements is true about a client-server network?
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What is the primary function of nodes in a computer network?
What is the primary function of nodes in a computer network?
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Which of the following is NOT a primary benefit of networking?
Which of the following is NOT a primary benefit of networking?
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What does packet switching refer to in networking?
What does packet switching refer to in networking?
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Which of the following exemplifies resource sharing in a network?
Which of the following exemplifies resource sharing in a network?
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What is a significant disadvantage of networking?
What is a significant disadvantage of networking?
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Which option describes centralized management in a network?
Which option describes centralized management in a network?
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What is a stand-alone computer?
What is a stand-alone computer?
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Which of the following is a common security risk associated with networking?
Which of the following is a common security risk associated with networking?
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What is one advantage of P2P networks?
What is one advantage of P2P networks?
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Which of the following is a disadvantage of P2P networks?
Which of the following is a disadvantage of P2P networks?
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In the client-server model, what role does the client play?
In the client-server model, what role does the client play?
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Which specialized server is responsible for handling e-mail messages?
Which specialized server is responsible for handling e-mail messages?
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What is a critical step in creating a good network plan?
What is a critical step in creating a good network plan?
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What is a function of the database server?
What is a function of the database server?
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Which statement best describes a disadvantage related to P2P networks?
Which statement best describes a disadvantage related to P2P networks?
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What is an advantage of a multi-core processor?
What is an advantage of a multi-core processor?
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What is the primary function of a server in relation to user queries?
What is the primary function of a server in relation to user queries?
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Which of the following is NOT a key feature of servers?
Which of the following is NOT a key feature of servers?
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What is the primary function of a modem?
What is the primary function of a modem?
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What defines a Local Area Network (LAN)?
What defines a Local Area Network (LAN)?
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How does a router differ from a modem in terms of connections?
How does a router differ from a modem in terms of connections?
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What characterizes a Wide Area Network (WAN)?
What characterizes a Wide Area Network (WAN)?
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Which of the following describes an Internet Area Network (IAN)?
Which of the following describes an Internet Area Network (IAN)?
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What role does a network switch play in a network?
What role does a network switch play in a network?
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What is a key characteristic of bus topology?
What is a key characteristic of bus topology?
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Which topology is best suited for networks requiring easy scalability?
Which topology is best suited for networks requiring easy scalability?
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Which statement accurately describes the function of a server in a network?
Which statement accurately describes the function of a server in a network?
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What is the primary purpose of a Home Area Network (HAN)?
What is the primary purpose of a Home Area Network (HAN)?
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What is a disadvantage of ring topology?
What is a disadvantage of ring topology?
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Which network type primarily focuses on storage and data management?
Which network type primarily focuses on storage and data management?
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What type of IP address does a modem obtain from an Internet Service Provider (ISP)?
What type of IP address does a modem obtain from an Internet Service Provider (ISP)?
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What is NOT a benefit associated with the features of servers?
What is NOT a benefit associated with the features of servers?
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In what way does a router enhance network security compared to a modem?
In what way does a router enhance network security compared to a modem?
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When is bus topology typically used?
When is bus topology typically used?
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What is a primary advantage of star topology?
What is a primary advantage of star topology?
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What is the primary difference between a client and a server in networking?
What is the primary difference between a client and a server in networking?
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What is a key function of packets when sending files over a network?
What is a key function of packets when sending files over a network?
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Which topology relies on a token passing mechanism for managing data flow?
Which topology relies on a token passing mechanism for managing data flow?
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What is a common use case for star topology?
What is a common use case for star topology?
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What is a disadvantage of bus topology for larger networks?
What is a disadvantage of bus topology for larger networks?
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Study Notes
Notebook
- A good notebook facilitates learning experiences.
Network Development
- A computer network connects two or more devices for communication and idea sharing.
- A network can be wireless or wired.
- Shared resources include data, printers, fax machines, and email systems.
- Primary network elements include resources (to share), pathways (data transfer), and protocols (computer communication rules).
- Network benefits include resource sharing, communication, centralized management, cost efficiency, flexibility, data security, collaboration, and productivity.
- Network disadvantages include high initial costs, security risks (e.g., cyberattacks), complexity, dependency, performance issues, privacy concerns, and maintenance demands.
- A stand-alone computer operates independently.
- Packet switching breaks data into packets for efficient transfer across digital networks.
Modems vs. Routers
- Modems connect a home to the internet.
- Modems translate internet signals from providers.
- Modems connect to one device (or a router).
- Modems get a public IP address from the internet service provider (ISP).
- Routers share the internet with all devices.
- Routers create Wi-Fi and connect multiple devices.
- Routers connect to multiple devices (via Wi-Fi or cables).
- Routers assign local IP addresses to devices.
- Routers add firewalls to protect networks.
- Modems bring internet access to a home.
- Routers distribute internet access to all devices.
- One device may perform both modem and router functions.
Network Switches
- A network switch connects network devices (e.g., computers, printers) enabling communication.
- It directs data only to the intended device instead of broadcasting to all connected devices.
Network Definitions
- Servers: Provide resources to clients over a network. They store files, manage apps, etc.
- Clients: Request and use resources provided by servers.
- Peers: Devices that share equal status in a network, both providing and requesting services.
Peer-to-Peer vs. Client-Server Networks
-
Peer-to-Peer (P2P): No dedicated central server. Each computer acts as both client and server sharing resources directly.
- Advantages include decentralization, scalability, and cost efficiency.
- Disadvantages include lack of centralized control, security risks, network management complexity, reliability issues, and potential limitations with scaling.
-
Client-Server: A central server manages resources and services. Clients request resources from the server.
- Advantages include centralized control, better security, scalability, data backup, and resource sharing.
- Disadvantages include higher setup costs, single point of failure, complex setup, server load issues, and client dependency.
Centralized Computing
- Centralized computing uses one central server to process data. Clients connect to the server for tasks.
- Thin clients: Lightweight computers that rely heavily on a server for most processing.
- Thick clients: Perform most processing locally, thus requiring less reliance on a server.
- Distributed computing distributes tasks and data across multiple computers.
- Parallel computing uses multiple processors simultaneously within a single computer.
Client-Server Model
- Clients request resources. Servers provide those resources.
- This model is used, for example, when browsing websites. Your device (client) asks a web server for a webpage, and the server sends it back.
Steps to Create a Network Plan
- Review current infrastructure.
- Evaluate existing technologies.
- Assess infrastructure requirements.
- Document the network design for reference.
Specialized Servers
- Application servers specialize in providing client/server application features and data.
- File servers provide file storage and retrieval.
- Print servers manage printing tasks.
- Mail servers manage email traffic.
- Database servers manage databases for use by other applications.
- Web servers host websites' data and provide responses to clients' queries.
- Name servers translate domain names to IP addresses
Network Planning and Design
- Network planning involves encompassing topological design and network synthesis.
- Requirements, devices, network topology, and implementation plans must be defined.
Network Topologies
- Bus topology: Single cable connects all devices. Simple and inexpensive but vulnerable to errors.
- Star topology: Each device connected to a central hub, reliable structure. Downside - if the central unit fails, the entire network does.
- Ring topology: Devices connected in a circular pattern. Good for managed data flow; vulnerable to network disruption if one node fails.
- Network topology affects the performance and reliability of the entire network.
Key Server Components
- Processor: The "brain" of the server.
- RAM: Stores data being used by the operating system.
- Storage: Stores data on the server.
- Bandwidth: The transmission rate of the server.
Key Network Features
- Scalability: Ability to handle growth in users and data.
- High Processing Power: Enables concurrent processing of multiple requests.
- Cost Savings: Efficient use of resources in network infrastructure.
- Reliability: Consistent performance with minimal downtime.
- Better Collaboration: Facilitates teamwork and shared resources.
- Types of Networks: LAN, WAN, CAN, SAN, MAN, HAN.
OSI and DoD Layers
- OSI model: A conceptual model used to describe how information travels over a network (7 layers).
- DoD Model: A simpler approach to describing network functionality (4 layers).
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Description
This quiz covers essential concepts in network development, including the advantages and disadvantages of computer networks. It also differentiates between modems and routers, explaining their roles in connecting to the internet and facilitating communication. Test your understanding of key networking terms and concepts.
