2. Networking

Network Protocols — Quiz

Test your understanding of network protocols with 5 practice questions.

Practice Questions

Question 1

What mechanism do TCP SYN cookies provide to protect a server from SYN flood attacks?

Question 2

On an Ethernet network with an MTU of 1500 bytes, an IP header of 20 bytes, and a TCP header including 12 bytes of options, what is the maximum TCP payload size per packet? Show your calculation.

Question 3

Which DNSSEC record type contains the hash of a DNSKEY record to establish trust between parent and child zones?

Question 4

What security threat does the HTTP Strict Transport Security (HSTS) header primarily mitigate?

Question 5

Despite HTTP/2’s multiplexed streams, what type of blocking can still degrade performance, and why?