Verify your knowledge of domains and security in this quiz.
How many servers, at most, are involved in a DNS query (e.g. Authoritative servers).?
At most 3 servers.
This is correct—at most 3 servers: root, TLD, and Authoritative nameservers. In some cases, the Internet Provider's servers can also be counted; but we won't do that here.
What is WhoisGuard?
A service that domain registrars provide, which prevents your domain registration information—such as name and e-mail—from being available to the public.
That's correct! WhoisGuard is generally a great idea unless you're alright with personal information being available online.
What is SSL?
A layer that sits on top of the HTTP and allows servers and clients to encrypt their communications, so somebody intercepting them cannot read them.
That's correct! While HTTP traffic can be intercepted, if it is encrypted in a Secure-Sockets Layer, it cannot be easily decrypted.
When modifying your domain's DNS servers (in your domain registrar), what nameservers are you changing?
The Authoritative nameservers.
That's correct! That Authoritative nameservers are those which know the IP address your domain points to.
What port does HTTPS traffic most commonly use?
443
That's correct!