Computer Networks Overview

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Questions and Answers

What is the primary function of a Router in a network?

  • To connect a computer to the internet using a telephone line
  • To broadcast requests to the entire network
  • To connect a LAN with an internet connection (correct)
  • To amplify and generate incoming signals

A Switch is less advanced than a Hub.

False (B)

What does a Modem allow a computer to do?

Connect to the internet

A ______ is used to monitor and control incoming and outgoing network traffic based on defined security rules.

<p>firewall</p> Signup and view all the answers

Match the following network devices with their primary functions:

<p>Hub = Broadcasts requests to all devices in a network Switch = Connects multiple devices with advanced features Server = Stores and shares data over a network Repeater = Amplifies and generates incoming signals</p> Signup and view all the answers

What is the primary function of a Fax Server?

<p>To send and receive paperless faxes (A)</p> Signup and view all the answers

IEEE is the largest technical professional society related to engineering and technology.

<p>True (A)</p> Signup and view all the answers

What common technology is used for connecting devices in a wired LAN?

<p>Ethernet</p> Signup and view all the answers

The common types of network media include twisted-pair cable, coaxial cable, fiber-optic cable, and ______.

<p>wireless</p> Signup and view all the answers

Match the following types of network media with their description:

<p>Twisted-pair cable = Commonly used for telephone and network connections Coaxial cable = Transmits radio frequency signals Fiber-optic cable = Uses light to transmit data Wireless = Communicates without physical connections</p> Signup and view all the answers

Flashcards

Fax Server

A network device that sends and receives paperless faxes.

Application Server

Manages network applications.

Telephony Server

Handles call center and call routing.

Proxy Server

Handles tasks for other network machines, especially internet connections.

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IEEE

Institute of Electrical and Electronics Engineers, a global professional society that advances technology.

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IEEE Standards (Networks)

Ensure communication between network devices and set guidelines for internet technologies.

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Ethernet

Standard technology for connecting devices in wired networks.

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Network Media

Physical path for electrical signals between network components.

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Coaxial Cable

Electrical cable used to transmit radio frequency signals.

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Network Interface Card (NIC)

A hardware component that connects a computer to a network.

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Hub

A device that distributes network signals to all connected devices, broadcasting requests.

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Switch

A device connecting network devices, sending signals only to intended recipients.

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Router

Connects a local network to the internet, directing network traffic.

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Modem

Connects a computer to the internet via phone lines.

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Repeater

Increases signal strength in a network, extending its reach.

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Firewall

A security device controlling network traffic, allowing, blocking, or dropping based on rules.

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Server

A computer running an operating system and providing data and resources to clients on a network.

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Client

A computer on a network that accesses data and resources from a server.

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File Server

A server that stores and manages files accessible to network users.

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Mail Server

A server that handles email communication on a network.

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Print Server

A server that manages network printers.

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Web Server

A server that manages web content and responds to requests from clients.

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Study Notes

Computer Networks

  • Introduction to Networks
  • Computer Network Components
    • Network Interface Card (NIC)
    • Hub
    • Switch
    • Router
    • Modem
    • Repeaters
    • Firewall
  • Network Media
    • Twisted-pair cable
    • Coaxial cable
    • Fiber-optic cable
    • Wireless
  • Network Communication Types
    • Unicast
    • Broadcast
    • Multicast
  • Network Devices (servers)
    • File Server
    • Mail Server
    • Print Server
    • Web Server
    • Fax Server
    • Application Server
    • Telephony Server
    • Proxy Server
  • IEEE Standards
  • Ethernet
    • Half-duplex Ethernet
    • Full-duplex Ethernet
  • Wireless Technologies
    • Bluetooth
    • Wi-Fi

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