Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Chapter 12
Chapter 13
Chapter 14
Chapter 1 quiz
10 questions · instant feedback after each answer.
1.
What does TCP/IP stand for?
Correct answer: B. TCP/IP is the protocol suite that every device on the Internet uses to exchange data.
2.
Which organisation launched ARPANET in the 1960s?
Correct answer: C. ARPANET was launched by the US Department of Defense and connected universities and research centres.
3.
How many bits are in an IPv4 address?
Correct answer: B. IPv4 is 32-bit: four 8-bit numbers separated by periods, giving about 4.3 billion addresses.
4.
How many bits are in an IPv6 address?
Correct answer: C. IPv6 is 128-bit: eight groups of four hex digits, giving 340 undecillion addresses.
5.
What is the main job of DNS?
Correct answer: B. DNS is the "phone book" of the Internet: it maps domain names such as example.com to numeric IP addresses.
6.
Which of these is NOT a valid domain naming rule?
Correct answer: A. Spaces are not permitted anywhere in a domain name.
7.
Which HTTP version uses the QUIC protocol over UDP?
Correct answer: C. HTTP/3 is QUIC-based (UDP), making it faster and more reliable. It carries around 30% of web traffic in 2025.
8.
Who invented the World Wide Web?
Correct answer: B. Tim Berners-Lee invented the Web at CERN in 1989 and created the first web page.
9.
Which of the following is a backend technology?
Correct answer: C. Node.js is a backend runtime. React and Tailwind are frontend; WebAssembly runs in the browser.
10.
Which statement best describes the Internet vs. the Web?
Correct answer: C. The Internet is the infrastructure (roads). The Web is a service on top of it (cars). The Web was invented in 1989.
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