Stevens Institute of Technology - Department of Computer Science
CS615 Checkpoint DNS
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What protocol and well-known port does the DNS typically use?
Specify four DNS record types (RRs) besides
A
and
AAAA
.
How many top-level domains are there?
How many 'root servers' are there? Provide at least two IP addresses.
When/why do we use TCP instead of UDP?
On a caching resolver, what is the first query when it tries to resolve
www.cs.stevens.edu
?
On a caching resolver, what is the first query when it tries to resolve
155.246.56.11
?
What threats do DNS-over-TLS and DNS-over-HTTPs address that DNSSEC does not?