Internet Networks and Services Quiz

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Questions and Answers

What is a network that connects devices within a limited geographical area called?

  • Local Area Network (LAN) (correct)
  • Wireless Local Area Network (WLAN)
  • System Area Network (SAN)
  • Wide Area Network (WAN)

FTP stands for File Transfer Protocol and is used to transfer data between computers.

True (A)

What are the three primary components of an email address?

User name, at sign (@), and host name.

A ______ is a program that can replicate itself and spread to other computers.

<p>computer virus</p> Signup and view all the answers

Match the following categories of viruses with their descriptions:

<p>Macro Virus = Infects documents and spreadsheets Boot Infectors = Infects the boot sector of a hard drive Directory Virus = Infects directory tables Web Scripting Virus = Infects websites and web applications Multipartite Virus = Infects multiple file types Worm = Replicates itself and spreads through networks without user intervention</p> Signup and view all the answers

Which of these is NOT a common search engine mentioned in the content?

<p>Safari (D)</p> Signup and view all the answers

Which of the following methods is NOT mentioned as a way computer viruses spread?

<p>Installing a new operating system (D)</p> Signup and view all the answers

Which of the following is NOT a valid top-level domain (TLD)?

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

What is a SAN used for?

<p>Connecting storage devices to servers (D)</p> Signup and view all the answers

Which of the following is NOT an example of a service provided by the Internet?

<p>Installing a physical printer driver (B)</p> Signup and view all the answers

Flashcards

LAN

A Local Area Network connects computers in a small geographic area.

Web Browser

Software that retrieves and displays webpages from the internet.

FTP

File Transfer Protocol used for transferring files over the internet.

Macro Virus

A type of virus that attaches to documents and activates when opened.

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Antivirus Program

Software designed to prevent, detect, and remove viruses from computers.

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Search Engines

Tools that help users find information on the internet.

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Email Address Parts

An email address consists of a User Name, @ sign, Host Name, and Top-Level Domain.

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Computer Viruses Spread

Computer viruses can spread through email attachments, networks, and infected software.

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Study Notes

Internet Networks

  • Networks connect computers and devices
  • Types of networks include:
    • Local Area Network (LAN): Connects devices in a small area like a home or office
    • Wide Area Network (WAN): Connects devices over a large area, spanning cities or countries
    • Wireless Local Area Network (WLAN): Uses wireless technology to connect devices within a limited area
    • System Area Network (SAN): A network dedicated to storage devices

Surfing the Web

  • World Wide Web: A system of interconnected hypertext documents
  • Webpage: A document accessible on the World Wide Web
  • Web Browser: Software used to navigate the World Wide Web

Internet Services

  • Telnet: Enables users to access remote computers
  • FTP (File Transfer Protocol): A standard for transferring files between computers
  • Electronic Mail: Facilitates sending and receiving messages
  • IRC (Internet Relay Chat): Enables real-time text communication
  • Electronic Commerce: Facilitates online buying and selling
  • Hosting: Provides storage space for websites
  • E-mail Listing: A group of email addresses for shared communication
  • Search Engines: Find information on the World Wide Web

Common Search Engines

  • Google, Yahoo, Bing, Baidu, AOL, Ask.com, Excite, DuckDuckGo, WolframAlpha, Yandex

Email Addresses

  • User Name: The part of an email address that identifies the user
  • @ sign: A symbol that separates the user name from the host name
  • Host Name: Identifies the email server
  • Top-Level Domain (TLD): The part of the address after the "@" that identifies the organization or country

Computer Viruses

  • Categories of Viruses:

    • Macro Viruses: Infect documents containing macros
    • Boot Infectors: Infect the part of a hard drive that starts the computer
    • Directory Viruses: Infect files and directories
    • Web Scripting Viruses: Infect web pages
    • Multipartite Viruses: Infect multiple parts of the system
    • Worms: Independently replicate themselves through networks

  • How Computer Viruses Spread:

    • Email attachments, networks, infected boot disks, infected software, hackers, instant messaging, friends and relatives

Virus Protection Tips

  • Install antivirus software
  • Avoid opening suspicious email attachments
  • Keep your operating system updated
  • Use a firewall

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