Network Protocols — CompTIA Security+ (SY0-701) Practice Questions

Network protocols define the rules governing how devices communicate, and understanding their security properties is central to the SY0-701 exam. Candidates must know which protocols transmit data in cleartext versus encrypted form, how protocols like DNS, DHCP, and ICMP can be abused in attacks such as poisoning, spoofing, and tunneling, and how network segmentation and firewall rules enforce protocol-level controls. The exam expects familiarity with both legacy insecure protocols and their secure replacements so that candidates can recommend appropriate hardening steps.

Free questions on network protocols