Network+ questions often hinge on one deciding fact. If you can pin that fact before reading the answers, the distractors get much less convincing.

This guide covers the traps that show up around OSI layers, hub vs switch, switch vs router, collision domains, broadcast domains, Telnet vs SSH, IMAP vs POP3, /26 subnetting, and DHCP relay.

Network+ exam traps summary table

Trap

Pinning fact