Networking Theory

Knowledge-based questions covering networking fundamentals at CCNA depth: well-known ports, IP addressing and special ranges, TCP and UDP, DNS record types, IP routing, application-layer protocols, and IPsec. No lab session required.

01 — Well-known ports
02 — IP addressing and special ranges
03 — TCP and UDP fundamentals
04 — DNS record types and resolution
05 — IP routing fundamentals
06 — Application-layer protocols
07 — IPsec and VPN concepts