20+ practice questions focused on Network Fundamentals — one of the most tested topics on the Cisco DevNet Associate 200-901 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Network Fundamentals PracticeIn the OSI model, which layer is responsible for logical addressing and routing of packets between networks?
Explanation: Layer 3 (Network layer) handles IP addressing and routing decisions.
Which transport protocol is connection-oriented and ensures reliable delivery through acknowledgments and retransmissions?
Explanation: TCP is connection-oriented and provides reliability.
A DNS AAAA record is used to resolve a hostname to what type of address?
Explanation: AAAA records map hostnames to IPv6 addresses.
A network engineer is designing a subnet that needs to support 30 usable hosts. Which subnet mask should be used?
Explanation: Option C (255.255.255.224, /27) provides 5 host bits, yielding 2^5 = 32 total addresses per subnet. Subtracting the network and broadcast addresses leaves exactly 30 usable hosts, meeting the requirement precisely.
Which HTTP method is idempotent and used to update a resource by sending the full representation?
Explanation: PUT is idempotent because making the same request multiple times results in the same server state. It requires the client to send a full representation of the resource, replacing any existing resource at that URI. This aligns with RFC 7231, which defines PUT as a method that creates or replaces the target resource with the enclosed representation.
+15 more Network Fundamentals questions available
Practice all Network Fundamentals questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Network Fundamentals. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Network Fundamentals questions on the 200-901 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Network Fundamentals is tested as part of the Cisco DevNet Associate 200-901 blueprint. Practicing with targeted Network Fundamentals questions ensures you can handle any format or difficulty that appears.
Yes. Courseiva provides free 200-901 practice questions across all exam topics and domains. The platform includes topic-based practice, mock exams, missed-question review, bookmarked questions, and readiness tracking — no account required.
Difficulty is subjective, but Network Fundamentals is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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