Podcast
Questions and Answers
What is the primary function of a Domain Name Server (DNS)?
What is the primary function of a Domain Name Server (DNS)?
- To manage the physical connections between network devices.
- To translate domain names into IP addresses. (correct)
- To directly connect computers to the internet.
- To encrypt data transmitted over the internet.
Which protocol is fundamental for the internet to function, ensuring data is correctly routed?
Which protocol is fundamental for the internet to function, ensuring data is correctly routed?
- HTTP
- FTP
- DNS
- TCP/IP (correct)
What was the original primary purpose of ARPANET?
What was the original primary purpose of ARPANET?
- To facilitate communication among various government bodies. (correct)
- To commercialize internet services for public use.
- To develop advanced gaming technologies.
- To serve as a global platform for social networking.
Which of the following is a disadvantage associated with the Internet?
Which of the following is a disadvantage associated with the Internet?
What does the term 'spamming' generally refer to in the context of internet usage?
What does the term 'spamming' generally refer to in the context of internet usage?
Besides communication, in what other significant area does the Internet provide substantial benefits?
Besides communication, in what other significant area does the Internet provide substantial benefits?
What technological advancement significantly broadened the Internet's capacity to publish and access information?
What technological advancement significantly broadened the Internet's capacity to publish and access information?
If a user reports that their computer is acting erratically and files are disappearing, which type of internet-related threat is MOST likely the cause?
If a user reports that their computer is acting erratically and files are disappearing, which type of internet-related threat is MOST likely the cause?
Imagine a scenario where government agencies need to share sensitive data securely and reliably. Which aspect of the Internet's original design, inherited from ARPANET, directly supports this requirement?
Imagine a scenario where government agencies need to share sensitive data securely and reliably. Which aspect of the Internet's original design, inherited from ARPANET, directly supports this requirement?
Consider a hypothetical future where all devices, including household appliances and vehicles, are interconnected via the Internet. What security challenge, already present today but significantly amplified in this future, would require the MOST urgent and innovative solutions?
Consider a hypothetical future where all devices, including household appliances and vehicles, are interconnected via the Internet. What security challenge, already present today but significantly amplified in this future, would require the MOST urgent and innovative solutions?
Flashcards
Internet
Internet
A global network of interconnected computer networks for accessing information.
TCP/IP
TCP/IP
Standard protocol used by the Internet for communication.
IP Address
IP Address
Unique numerical identifier for each device on a network.
DNS (Domain Name Server)
DNS (Domain Name Server)
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ARPANET
ARPANET
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Spamming
Spamming
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Virus
Virus
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Electronic Commerce
Electronic Commerce
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Study Notes
- The Internet serves as an Information super highway for accessing web-based information and can be defined in various ways.
Internet Structure and Protocol
- The Internet constitutes a global network of interconnected computer systems.
- It operates using the standard Internet Protocol known as TCP/IP.
- Every computer linked to the Internet is uniquely identified through an IP address.
- An IP address is a set of numbers, for example 110.22.33.114, that specifies a computer's location.
- DNS (Domain Name Server) computers give names to IP Addresses that enable users to easily locate computers by name.
- A DNS server will resolve a name such as http://www.tutorialspoint.com to its specific IP address.
- The Internet is accessible to users worldwide.
Internet Evolution
- First conceived in 1969, the Internet has undergone significant technological and infrastructural development.
- The Internet stems from the Advanced Research Project Agency Network or ARPANET.
- ARPANET was created by the Department of Defense in the United States.
- ARPANET's main goal was to facilitate communication between diverse government entities.
- The original ARPANET consisted of just four nodes, referred to as Hosts.
- By 1972, ARPANET expanded to 23 nodes across different countries and was renamed Internet.
- With advancements of technologies such as TCP/IP protocols, DNS, WWW, browsers, and scripting languages, the Internet evolved as a platform for disseminating and accessing information.
Advantages of the Internet
- The Internet has many advantages which touches almost every aspect of modern life.
- The Internet facilitates communication with individuals in remote locations through a variety of applications.
- Social networking sites include Facebook, Twitter, Yahoo, Google+, Flickr, and Orkut.
- The Internet enables information searches across areas like technology, health, science, social studies, and geographical information, facilitated by search engines.
- The Internet serves as a entertainment platform by offering online television, games, songs, videos, and social networking apps.
- Various services are enabled on the Internet such as internet banking, matrimonial services, online shopping, online ticket booking, bill payment, data sharing, and email.
- The concept of electronic commerce is made possible by internet, and facilitates online business transactions on electronic systems.
Disadvantages of the Internet
- The Internet has disadvantages despite being a source of key information.
- There is a risk of personal information compromise which makes protection of data such as names, addresses, and credit card numbers critical when using authenticated sites.
- Spamming, or unwanted bulk emails, can obstruct the entire system.
- Viruses can spread through computers connected to the Internet, which can lead to system crashes or data loss.
- The existence of pornographic content on the Internet poses a threat, especially to children.
- Misconceptions can arise from unauthenticated information found on varied websites.
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