💻 Computer Science & IT

Computer networks

TCP and UDP, DNS, HTTP and TLS: what actually happens between typing a URL and seeing a page.

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Question 1 of 8

Which is true of UDP but not TCP?

Question 2 of 8

What is the purpose of TCP's three-way handshake?

Question 3 of 8

A DNS record that maps a name to an IPv6 address is:

Question 4 of 8

HTTP status 301 means:

Question 5 of 8

In TLS, the certificate presented by a server proves:

Question 6 of 8

What does a subnet mask of /24 mean?

Question 7 of 8

Which layer of the OSI model does a router primarily operate at?

Question 8 of 8

What is head-of-line blocking, which HTTP/2 tried to fix?

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