Be able to compare UDP and TCP behavior, list HTTP/2 features including HPACK header compression and multiplexing, and describe REST API request/response mechanics. The key skill is mapping protocols such as NETCONF and REST to the correct SDN architecture layer.
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Domain overview
Network Fundamentals is 15% of the Cisco DevNet Associate 200-901 exam. It checks whether you understand how applications talk over networks: UDP versus TCP behavior, HTTP/1. 1 versus HTTP/2 features such as multiplexing and HPACK header compression, REST API basics, and where protocols like NETCONF sit in SDN architecture layers.
Exam objectives
UDP connectionless, best-effort datagram behavior versus TCP reliability and handshakes
HTTP/2 features: binary framing, multiplexing, server push, and HPACK header compression
REST API concepts: HTTP methods, status codes, and stateless request/response interaction
NETCONF placement in SDN layers and its role configuring network devices via YANG models
Assuming UDP guarantees delivery or ordering; UDP is connectionless and does not retransmit lost packets or preserve sequence.
Confusing HTTP/2 features with HTTP/1.1, such as claiming HTTP/2 removes TLS or that HPACK is a compression algorithm for bodies.
Placing NETCONF in the application or infrastructure layer instead of the management/controller layer of SDN architecture.
Practice questions for the Network Fundamentals domain are being added. Check back soon.
← Back to all 200-901 domainsBe able to compare UDP and TCP behavior, list HTTP/2 features including HPACK header compression and multiplexing, and describe REST API request/response mechanics. The key skill is mapping protocols such as NETCONF and REST to the correct SDN architecture layer.
The Courseiva 200-901 question bank contains 0 questions in the Network Fundamentals domain, covering the 15% of the exam attributed to this domain in the official Cisco blueprint. Click any question to see the full explanation and answer breakdown.
Start with a 10-question focused session to identify your baseline accuracy in this domain. Read every explanation — even for questions you answer correctly — to understand the reasoning. Once you score consistently above 80%, move to a 20–30 question session to confirm depth before moving to the next domain.
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