Master the Cisco Certified Network Associate (CCNA) exam with our comprehensive Q&A collection. Review questions by topic, understand explanations, and build confidence for exam day.
Strategies to help you tackle Cisco Certified Network Associate (CCNA) exam questions effectively
Allocate roughly 1-2 minutes per question. Flag difficult questions and return to them later.
Pay attention to keywords like 'MOST', 'LEAST', 'NOT', and 'EXCEPT' in questions.
Use elimination to narrow down choices. Often 1-2 options can be quickly ruled out.
Focus on understanding why answers are correct, not just memorizing facts.
Practice with real exam-style questions for Cisco Certified Network Associate (CCNA)
A router is correct because it operates at Layer 3 and creates separate broadcast domains for each of its interfaces. Switches and bridges create separate collision domains but maintain a single broadcast domain unless VLANs are configured. Hubs and repeaters operate at Layer 1 and do not segment broadcasts or collisions.
When Layer 1 shows 'up' but Layer 2 shows 'down', this indicates the physical connection is working but there is a data link layer issue. The most common cause is an encapsulation mismatch (such as one side configured for PPP and the other for HDLC). An administrative shutdown would show both layers as down. A physical cable problem would cause Layer 1 to be down. An incorrect IP address is a Layer 3 issue and wouldn't affect Layer 2 status.
255.255.255.224 (/27) is correct because it provides 8 subnets with 30 usable hosts per subnet. The calculation: borrowing 3 bits gives 2^3=8 subnets, and leaving 5 bits for hosts gives 2^5-2=30 usable hosts. Option B (/28) provides 16 subnets but only 14 hosts. Option C (/26) provides only 4 subnets with 62 hosts. Option D (/25) provides only 2 subnets with 126 hosts. The /27 mask is the best fit meeting both requirements.
The Transport Layer is correct because it handles end-to-end communication and includes both TCP (reliable, connection-oriented) and UDP (unreliable, connectionless) protocols. The Network Access Layer handles physical transmission. The Internet Layer handles logical addressing and routing (IP). The Application Layer provides network services to applications.
The 'show interfaces trunk' command is correct because it specifically displays trunk port information including VLANs allowed on the trunk, VLANs active in management domain, and VLANs in spanning-tree forwarding state. While 'show running-config' would show the configuration, it doesn't provide the operational status. 'show vlan brief' shows VLAN information but not trunk-specific details about which VLANs are allowed on which trunks.
Review Q&A organized by exam domains to focus your study
20% of exam • 3 questions
What is the primary purpose of Network Fundamentals in Networking?
Network Fundamentals serves as a fundamental component in Networking, providing essential capabilities for managing, configuring, and optimizing Cisco solutions. Understanding this domain is crucial for the Cisco Certified Network Associate (CCNA) certification.
Which best practice should be followed when implementing Network Fundamentals?
When implementing Network Fundamentals, follow the principle of least privilege, ensure proper documentation, implement monitoring and logging, and regularly review configurations. These practices help maintain security and operational excellence.
How does Network Fundamentals integrate with other Cisco services?
Network Fundamentals integrates seamlessly with other Cisco services through APIs, shared authentication, and native connectors. This integration enables comprehensive solutions that leverage multiple services for optimal results.
20% of exam • 3 questions
What is the primary purpose of Network Access in Networking?
Network Access serves as a fundamental component in Networking, providing essential capabilities for managing, configuring, and optimizing Cisco solutions. Understanding this domain is crucial for the Cisco Certified Network Associate (CCNA) certification.
Which best practice should be followed when implementing Network Access?
When implementing Network Access, follow the principle of least privilege, ensure proper documentation, implement monitoring and logging, and regularly review configurations. These practices help maintain security and operational excellence.
How does Network Access integrate with other Cisco services?
Network Access integrates seamlessly with other Cisco services through APIs, shared authentication, and native connectors. This integration enables comprehensive solutions that leverage multiple services for optimal results.
25% of exam • 3 questions
What is the primary purpose of IP Connectivity in Networking?
IP Connectivity serves as a fundamental component in Networking, providing essential capabilities for managing, configuring, and optimizing Cisco solutions. Understanding this domain is crucial for the Cisco Certified Network Associate (CCNA) certification.
Which best practice should be followed when implementing IP Connectivity?
When implementing IP Connectivity, follow the principle of least privilege, ensure proper documentation, implement monitoring and logging, and regularly review configurations. These practices help maintain security and operational excellence.
How does IP Connectivity integrate with other Cisco services?
IP Connectivity integrates seamlessly with other Cisco services through APIs, shared authentication, and native connectors. This integration enables comprehensive solutions that leverage multiple services for optimal results.
10% of exam • 3 questions
What is the primary purpose of IP Services in Networking?
IP Services serves as a fundamental component in Networking, providing essential capabilities for managing, configuring, and optimizing Cisco solutions. Understanding this domain is crucial for the Cisco Certified Network Associate (CCNA) certification.
Which best practice should be followed when implementing IP Services?
When implementing IP Services, follow the principle of least privilege, ensure proper documentation, implement monitoring and logging, and regularly review configurations. These practices help maintain security and operational excellence.
How does IP Services integrate with other Cisco services?
IP Services integrates seamlessly with other Cisco services through APIs, shared authentication, and native connectors. This integration enables comprehensive solutions that leverage multiple services for optimal results.
15% of exam • 3 questions
What is the primary purpose of Security Fundamentals in Networking?
Security Fundamentals serves as a fundamental component in Networking, providing essential capabilities for managing, configuring, and optimizing Cisco solutions. Understanding this domain is crucial for the Cisco Certified Network Associate (CCNA) certification.
Which best practice should be followed when implementing Security Fundamentals?
When implementing Security Fundamentals, follow the principle of least privilege, ensure proper documentation, implement monitoring and logging, and regularly review configurations. These practices help maintain security and operational excellence.
How does Security Fundamentals integrate with other Cisco services?
Security Fundamentals integrates seamlessly with other Cisco services through APIs, shared authentication, and native connectors. This integration enables comprehensive solutions that leverage multiple services for optimal results.
10% of exam • 3 questions
What is the primary purpose of Automation and Programmability in Networking?
Automation and Programmability serves as a fundamental component in Networking, providing essential capabilities for managing, configuring, and optimizing Cisco solutions. Understanding this domain is crucial for the Cisco Certified Network Associate (CCNA) certification.
Which best practice should be followed when implementing Automation and Programmability?
When implementing Automation and Programmability, follow the principle of least privilege, ensure proper documentation, implement monitoring and logging, and regularly review configurations. These practices help maintain security and operational excellence.
How does Automation and Programmability integrate with other Cisco services?
Automation and Programmability integrates seamlessly with other Cisco services through APIs, shared authentication, and native connectors. This integration enables comprehensive solutions that leverage multiple services for optimal results.
After reviewing these questions and answers, challenge yourself with our interactive practice exams. Track your progress and identify areas for improvement.
Common questions about the exam format and questions
The Cisco Certified Network Associate (CCNA) exam typically contains 50-65 questions. The exact number may vary, and not all questions may be scored as some are used for statistical purposes.
The exam includes multiple choice (single answer), multiple response (multiple correct answers), and scenario-based questions. Some questions may include diagrams or code snippets that you need to analyze.
Questions are weighted based on the exam domain weights. Topics with higher percentages have more questions. Focus your study time proportionally on domains with higher weights.
Yes, most certification exams allow you to flag questions for review and return to them before submitting. Use this feature strategically for difficult questions.
Practice questions are designed to match the style, difficulty, and topic coverage of the real exam. While exact questions won't appear, the concepts and question formats will be similar.
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