Who is credited with inventing the World Wide Web?
- A.Vinton Cerf
- B.Charles Babbage
- C.Tim Berners-Lee
- D.Ray Tomlinson
Correct answer
Explanation
The correct answer is C, Tim Berners-Lee. Working at CERN in Switzerland, he proposed a system of linked documents in 1989, wrote the first browser and server, and put the first website online in 1991. HTML, HTTP and the URL all come from his design, which is why he is called the inventor of the World Wide Web.
Option A, Vinton Cerf, designed the TCP/IP protocol suite along with Robert Kahn and is called a father of the internet, which is the network rather than the web. Option B, Charles Babbage, belongs to the nineteenth century and is the father of the computer for his Difference and Analytical Engines. Option D, Ray Tomlinson, sent the first network email in 1971 and chose the @ sign for addresses. Each of the three is famous, but only Berners-Lee is tied to the Web.
Read the full article: Internet and Email: Protocols, Ports and Terms
Practice Questions
View allDeleted emails are stored in
- A.Drafts
- B.Trash
- C.Inbox
- D.Sent mail
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When a letter is deleted from a mailbox it is not wiped out at once. It is moved to a folder called Trash, or Bin in some services, and kept there for a fixed number of days so that a letter deleted by mistake can be restored.
Read the full explanation →In Gmail, the email address of the recipients can be entered in __________ field.
- A.Subject
- B.To
- C.Message
- D.From
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The To field of a mail window is meant for the addresses of the people the letter is written to.
Read the full explanation →ARPANET, the forerunner of the internet, carried its first message in which year?
- A.1959
- B.1969
- C.1979
- D.1989
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ARPANET was funded by the Advanced Research Projects Agency of the United States Department of Defense, and in 1969 it linked computers at four American universities and passed its first message between them.
Read the full explanation →Which symbol was chosen by Ray Tomlinson to separate the user name from the host name in an email address?
- A.#
- B.&
- C.@
- D.*
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Ray Tomlinson sent the first message between two computers on ARPANET in 1971 and needed a character that would never appear in a person's name.
Read the full explanation →What is the default port number of HTTPS?
- A.21
- B.80
- C.110
- D.443
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HTTPS is HTTP wrapped in encryption, and web servers listen for it on port 443. When an address begins with https, the browser opens a secure channel on that port, and the padlock shown beside the address means the traffic on it is coded.
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