Free CCNA Exam Flashcards
Memorize 50 essential terms and definitions for the Cisco Certified Network Associate. See the term, recall the definition, then flip to check yourself.
OSI Model
The Open Systems Interconnection model is a 7-layer conceptual framework that standardizes network communication functions. Each layer (Physical, Data Link, Network, Transport, Session, Presentation, Application) has specific responsibilities, enabling different network technologies to interoperate. Understanding the OSI model is essential for troubleshooting network issues by isolating problems to specific layers.
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About These CCNA Flashcards
These 50 flashcards are designed to help you memorize key terms and definitions for the Cisco Certified Network Associate. Each card shows a term on the front and its definition on the back—the classic flashcard format for vocabulary memorization. Use these alongside our practice questions to build both recall and comprehension.
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Frequently Asked Questions
What is the CCNA exam pass rate?
Cisco doesn't publish official pass rates, but industry estimates suggest only 5-40% of first-time candidates pass the CCNA 200-301 exam. Some sources report that up to 95% of candidates may not pass on their first attempt. The CCNA has a passing score of 825 out of 1000 (scaled), with 100-120 questions to answer in 120 minutes. This includes multiple-choice, drag-and-drop, and simulation questions. The simulation tasks are particularly challenging and require hands-on practice with Cisco Packet Tracer or GNS3.
How long should I study for the CCNA exam?
Study time depends on your background: Beginners with no networking experience need 3-5 months studying 15-20 hours weekly. Those with basic networking knowledge can prepare in 2-3 months with focused effort. Some candidates with strong fundamentals pass within 1-2 months of diligent study. The key is hands-on practice with network simulation tools alongside theoretical study. Most successful candidates spend 200-300 total hours preparing.
What are the hardest topics on the CCNA 200-301 exam?
The most challenging CCNA topics include: 1) Subnetting - calculating subnet masks, valid hosts, and network addresses under time pressure; 2) Routing protocols (OSPF, EIGRP) - understanding neighbor relationships and route selection; 3) VLANs and inter-VLAN routing - configuring trunk ports and router-on-a-stick; 4) Network automation and programmability - newer topics added in 2020; 5) Simulation questions - hands-on configuration tasks that require actual CLI command knowledge. The 200-301 exam covers more topics than previous versions, making breadth of knowledge essential.
What is the CCNA retake policy if I fail?
Cisco requires a 5-day waiting period before your first retake and 14 days for subsequent retakes of the same exam. After three consecutive failures, you must wait 180 days (6 months) before trying again. Each retake costs the full exam fee of $300 USD. Cisco's testing partner Pearson VUE enforces these policies strictly. There's no lifetime limit on attempts. Your most recent score counts, so thorough preparation before retaking is essential.
Is the CCNA harder than CompTIA Network+?
Yes, CCNA is significantly harder than CompTIA Network+. CCNA is vendor-specific (Cisco) and requires detailed knowledge of Cisco IOS commands, configuration syntax, and Cisco-specific protocols. Network+ is vendor-neutral and tests broader networking concepts at a higher level. CCNA has simulation questions requiring actual CLI configuration; Network+ is entirely multiple-choice. CCNA costs $300 vs Network+'s $358 but carries more weight in enterprise networking careers where Cisco equipment dominates.
How long is CCNA certification valid?
CCNA certification is valid for 3 years from the date you pass the exam. To recertify, you can either retake the CCNA exam, pass a higher-level Cisco certification exam (like CCNP), or earn 30 Continuing Education (CE) credits. CE credits can be earned through Cisco Learning Network activities, attending Cisco Live events, or other approved training. Many professionals recertify by pursuing CCNP, which also resets their CCNA validity period.