Checkpoint · revision 1

Networks and Protocols Checkpoint

Check how addresses, subnet masks, HTTP, and reliable transport work together.

Scenario

A browser on a small office network must decide whether a destination is local, then request a web resource reliably.

Question 1

Which subnet mask represents an IPv4 /24 network?

255.0.0.0255.255.0.0255.255.255.0255.255.255.252

Question 2

How many usable host addresses are available in a conventional /29 IPv4 subnet?

hosts

Question 3

Which protocol translates a domain name into an IP address?

DNSHTTPTCPARP

Question 4

Which HTTP status code means that a requested resource was not found?

status code

Answer keys, scoring tolerance, XP, and awards stay on the server. Retrying the same attempt cannot award twice.