Podcast
Questions and Answers
What should you select when connecting to a trusted network?
What should you select when connecting to a trusted network?
- Private network (correct)
- Unsecured network
- Virtual network
- Public network
Which of the following best describes an IP address?
Which of the following best describes an IP address?
- A security protocol for data transmission
- A serial number for internet devices
- A type of domain name format
- A numerical label identifying each device (correct)
What is the primary purpose of the Domain Name System (DNS)?
What is the primary purpose of the Domain Name System (DNS)?
- To translate domain names into IP addresses (correct)
- To store user passwords
- To secure internet connections
- To increase internet speed
Which IP address format is newer and offers a larger address space?
Which IP address format is newer and offers a larger address space?
Which of the following is NOT a characteristic of a public network?
Which of the following is NOT a characteristic of a public network?
What feature will your device disable when connected to a public network?
What feature will your device disable when connected to a public network?
Which of the following represents valid IPv4 format example?
Which of the following represents valid IPv4 format example?
Which of the following is a common DNS service provider?
Which of the following is a common DNS service provider?
What significant networking protocol did ARPANET adopt in 1983?
What significant networking protocol did ARPANET adopt in 1983?
Which innovation in 1984 simplified computer addressing on networks?
Which innovation in 1984 simplified computer addressing on networks?
Who proposed the idea of the World Wide Web in 1989?
Who proposed the idea of the World Wide Web in 1989?
What year saw the introduction of the first web browser, Mosaic?
What year saw the introduction of the first web browser, Mosaic?
When did the commercial internet officially emerge?
When did the commercial internet officially emerge?
Which innovation during the 2000s significantly impacted internet access and everyday life?
Which innovation during the 2000s significantly impacted internet access and everyday life?
What major development in the 2010s enhanced data processing and storage capabilities?
What major development in the 2010s enhanced data processing and storage capabilities?
What technology began rolling out in the 2020s, promising faster speeds and reliable connections?
What technology began rolling out in the 2020s, promising faster speeds and reliable connections?
What is the purpose of the Home button in a web browser?
What is the purpose of the Home button in a web browser?
How is the speed of a connection typically measured?
How is the speed of a connection typically measured?
Which file size would likely take the longest to download at a speed of 1Mbps?
Which file size would likely take the longest to download at a speed of 1Mbps?
What is a benefit of streaming content?
What is a benefit of streaming content?
What is the first step to perform a search from the address bar?
What is the first step to perform a search from the address bar?
Which of the following ad blockers specifically focuses on blocking pop-ups and pop-unders?
Which of the following ad blockers specifically focuses on blocking pop-ups and pop-unders?
What is a common feature of both AdBlock and AdBlock Plus?
What is a common feature of both AdBlock and AdBlock Plus?
Which ad blocker is specifically mentioned as available for Chrome only?
Which ad blocker is specifically mentioned as available for Chrome only?
What does the reload button do in a web browser?
What does the reload button do in a web browser?
Which feature of Ghostery enhances user privacy?
Which feature of Ghostery enhances user privacy?
Which ad blocker is described as lightweight and open-source?
Which ad blocker is described as lightweight and open-source?
What does the forward button do in a browser?
What does the forward button do in a browser?
Which of the following statements is true about non-intrusive ads?
Which of the following statements is true about non-intrusive ads?
What was the primary purpose of the computers developed in the 1950s like UNIVAC?
What was the primary purpose of the computers developed in the 1950s like UNIVAC?
Who proposed the concept of a global computer network in 1962?
Who proposed the concept of a global computer network in 1962?
What significant technology was developed in the 1960s that is essential for modern networking?
What significant technology was developed in the 1960s that is essential for modern networking?
What milestone event occurred in October 1969?
What milestone event occurred in October 1969?
Who introduced email on ARPANET in 1972?
Who introduced email on ARPANET in 1972?
Which protocol was developed by Vinton Cerf and Robert Kahn in 1973?
Which protocol was developed by Vinton Cerf and Robert Kahn in 1973?
What was the significance of ARPANET connecting to other networks in 1977?
What was the significance of ARPANET connecting to other networks in 1977?
What major advancement in computer networking took place in the 1960s according to the timeline?
What major advancement in computer networking took place in the 1960s according to the timeline?
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Study Notes
History of the Internet
- 1940s: The first electronic computers, like ENIAC, were built during World War II.
- 1950s: Computers like UNIVAC were developed for business and government use.
- 1962: J.C.R. Licklider proposed the concept of a global computer network in his "Intergalactic Computer Network" vision.
- 1964: Paul Baran and Donald Davies independently developed the concept of packet switching.
- 1969: ARPANET (Advanced Research Projects Agency Network) was launched, becoming the world's first packet-switched network.
- 1972: Email was introduced on ARPANET by Ray Tomlinson.
- 1973: TCP/IP protocol was developed by Vinton Cerf and Robert Kahn, allowing different computers and networks to communicate.
- 1977: ARPANET connected to other networks, forming the basis of what would become the internet.
- 1983: ARPANET adopted TCP/IP as its standard networking protocol.
- 1984: Domain Name System (DNS) simplified the way computers are addressed by using domain names (e.g., "example.com").
- 1989: Tim Berners-Lee proposed the idea of the World Wide Web, a system for linking hypertext documents accessed through the internet.
- 1991: The World Wide Web went live.
- 1993: The first web browser, Mosaic, was introduced.
- 1995: The commercial internet emerged.
- 2000s: High-speed internet access through broadband and Wi-Fi networks became widely available. Social media platforms like Facebook, Twitter, and YouTube transformed communication.
- 2010s: Cloud computing enhanced the power and accessibility of networked computing.
- 2020s: 5G networks began rolling out, and the Internet of Things (IoT) connected billions of devices.
Understanding How the Internet Works
- Private Network: Trusted networks like your home or office Wi-Fi. Devices can share files and discover each other.
- Public Network: Untrusted networks like those in coffee shops or airports. Devices disable discoverability and sharing for security.
- IP Addresses: Unique identifiers assigned to each device connected to the internet.
- IPv4: The original format (e.g., 192.168.0.1) with around 4.3 billion possible addresses.
- IPv6: A newer format (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334) with a vastly larger address space.
- DNS (Domain Name System): Translates human-readable domain names (like "example.com") into IP addresses that computers use to communicate.
- DNS Services: Provided by DNS servers that respond to queries from devices trying to resolve domain names into IP addresses.
Web Browser Navigation
- Back Button: Advances the page back by one.
- Forward Button: Advances the page forward by one.
- Reload Button: Reloads a page again.
- Home Page: The default page when the browser is opened.
Downloading and Uploading
- Downloading: Getting data from a server to your computer.
- Uploading: Sending data from your computer to a server.
- Connection Speed: Measured in bits per second (bps) (Kbps, Mbps, Gbps).
Streaming
- Streaming: Data is sent to a device in a continual and steady stream.
- Benefits of Streaming: Storage efficiency and accessibility across devices.
Search From the Address Bar
- Search: Clicking a suggested search term in the address bar will initiate a search using the selected search engine.
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