CompTIA N10-009 Exam CompTIA Network+ Certification Exam Exam Latest Version: 7.0 DEMO Version Full Version Features: • 90 Days Free Updates • 30 Days Money Back Guarantee • Instant Download Once Purchased • 24 Hours Live Chat Support Full version is available at link below with affordable price. https://boost2certify.com/comptia/n10-009 Page 1 of 13 https://boost2certify.com/comptia/n10-009 Question 1. (Single Select) Which of the following is used to estimate the average life span of a device? A: RTO B: RPO C: MTBF D: MTTR Correct Answer: C Explanation: Understanding MTBF: Mean Time Between Failures (MTBF): A reliability metric that estimates the average time between successive failures of a device or system. Calculation and Importance: Calculation: MTBF is calculated as the total operational time divided by the number of failures during that period. Usage: Used by manufacturers and engineers to predict the lifespan and reliability of a device, helping in maintenance planning and lifecycle management. Comparison with Other Metrics: RTO (Recovery Time Objective): The maximum acceptable time to restore a system after a failure. RPO (Recovery Point Objective): The maximum acceptable amount of data loss measured in time. MTTR (Mean Time to Repair): The average time required to repair a device or system and return it to operational status. Application: MTBF is crucial for planning maintenance schedules, spare parts inventory, and improving the Page 2 of 13 https://boost2certify.com/comptia/n10-009 overall reliability of systems. CompTIA Network+ study materials on reliability and maintenance metrics. Question 2. (Multi Select) Which of the following are the best device-hardening techniques for network security? (Select two). A: Disabling unused ports B: Performing regular scanning of unauthorized devices C: Monitoring system logs for irregularities D: Enabling logical security such as SSO E: Changing default passwords F: Ensuring least privilege concepts are in place Correct Answer: A, E Explanation: Disabling unused ports prevents unauthorized access and reduces the attack surface by ensuring that no inactive or unmonitored entry points are available for exploitation. Changing default passwords is critical for security because default credentials are widely known and can easily be exploited by attackers. These techniques are fundamental steps in hardening devices against unauthorized access and ensuring network security. CompTIA Network+ Exam Objectives and official study guides. Question 3. (Single Select) A technician needs to set up a wireless connection that utilizes MIMO on non-overlapping channels. Which of the following would be the best choice? A: 802.11a Page 3 of 13 https://boost2certify.com/comptia/n10-009 B: 802.11b C: 802.11g D: 802.11n Correct Answer: D Explanation: The 802.11n standard supports MIMO (Multiple Input Multiple Output), which allows multiple antennas to increase data throughput and improve reliability. Additionally, it uses non-overlapping channels in the 5 GHz band (and optionally the 2.4 GHz band), making it a good choice for high-speed, interference-resistant wireless connections. (CompTIA Network+ Study Guide, Chapter on Wireless Technologies) Question 4. (Single Select) SIMULATION A network technician needs to resolve some issues with a customer's SOHO network. The customer reports that some of the PCs are not connecting to the network, while others appear to be working as intended. INSTRUCTIONS Troubleshoot all the network components. Review the cable test results first, then diagnose by clicking on the appropriate PC, server, and Layer 2 switch. Identify any components with a problem and recommend a solution to correct each problem. If at any time you would like to bring back Page 4 of 13 https://boost2certify.com/comptia/n10-009 the initial state of the simulation, please click the Reset All button. Page 5 of 13 https://boost2certify.com/comptia/n10-009 Page 6 of 13 https://boost2certify.com/comptia/n10-009 Page 7 of 13 https://boost2certify.com/comptia/n10-009 Page 8 of 13 https://boost2certify.com/comptia/n10-009 Page 9 of 13 https://boost2certify.com/comptia/n10-009 A: See the answer and solution below Correct Answer: A Explanation: Page 10 of 13 https://boost2certify.com/comptia/n10-009 Question 5. (Single Select) A network technician is troubleshooting network latency and has determined the issue to be occuring two network switches( Switch10 and Switch11). Symptoms reported included poor video performance and slow file copying. Given the following informtion: Which of the following should the technician most likely do to resolve the issue? A: Disable automatic negotiation on Switch11. B: Modify Switch10 MTU value to 1500. C: Configure STP on both switches. D: Change the native VLAN on the ports. Page 11 of 13 https://boost2certify.com/comptia/n10-009 Correct Answer: B Page 12 of 13 https://boost2certify.com/comptia/n10-009 Full version is available at link below with affordable price. https://boost2certify.com/comptia/n10-009 40% Discount Coupon Code: HAPPYNEWYEAR25 Page 13 of 13 https://boost2certify.com/comptia/n10-009