Free Practice Questions for CompTIA N10-009 Exam

GDPR (General Data Protection Regulation)is alegal frameworkenforced by the European Union to protect personal data and privacy. Unlike internal organizational policies such as AUPs or codes of conduct, GDPR is alegislated regulation, and organizations must comply or face legal consequences.

The netstat command provides information about network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. Running netstat on the server can help the administrator verify that the web server process is listening on the expected port (e.g., port 80 for HTTP or port 443 for HTTPS) and that there are no issues with network connections. This is a crucial first step in diagnosing why the web server is not accessible via a browser.References: CompTIA Network+ study materials. ​

A full-tunnel VPN routes all of a user's network traffic through the corporate network. This means that the organization can inspect all network traffic for security and compliance purposes, as all data is tunneled through the VPN, allowing for comprehensive monitoring and inspection.References: CompTIA Network+ study materials.

Band steering allows wireless access points to automatically direct capable devices to the 5GHz band, which typically has higher throughput and less interference than the 2.4GHz band, improving performance. The document confirms:

“Band steering helps balance wireless client loads by steering dual-band capable devices to the 5GHz band, which offers higher speeds and less channel congestion than 2.4GHz.”

A load balancer is designed to distribute user requests across multiple servers to ensure high availability and performance.

Breakdown of Options:

A. Router – Directs traffic between networks, not between web servers.

B. Switch – Works at Layer 2, does not distribute web traffic.

C. Firewall – Secures network traffic, but does not distribute load.

D. Load balancer – ✅ Correct answer. Optimizes web traffic distribution across multiple servers.

A Client-to-Site VPN allows a remote user to securely connect to a company's internal network, providing access as if they were physically on-site.

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 overall reliability of systems.

802.11ax, also known as Wi-Fi 6, is designed for high-density environments and improves device saturation and coverage compared to previous standards.

802.11ac: While it offers high throughput, it is not optimized for high-density environments as effectively as 802.11ax.

802.11ax (Wi-Fi 6): Introduces features like OFDMA, MU-MIMO, and BSS Coloring, which enhance performance in crowded environments, reduce latency, and increase the number of devices that can be connected simultaneously.

802.11g and 802.11n: Older standards that do not offer the same level of efficiency or support for high device density as 802.11ax.

Network References:

CompTIA Network+ N10-007 Official Certification Guide: Covers the 802.11 standards and their capabilities.

Cisco Networking Academy: Provides training on Wi-Fi technologies and best practices for high-density deployments.

Network+ Certification All-in-One Exam Guide: Discusses the various 802.11 standards and their applications in different environments.

A Change Advisory Board (CAB) reviews and approves network changes. Before approval, they need a detailed action plan outlining the change, potential impacts, and mitigation strategies.

A Plan of Action includes risk assessments, rollback procedures, and deployment steps, which are critical for decision-making.

? Reference: CompTIA Network+ (N10-009) Official Study Guide – Section: Network Troubleshooting Methodologies