Download Latest N10-009 Questions

•Since this issue occurred after a configuration change on a Layer 3 switch, the most likely cause is misconfigured ACLs (Access Control Lists).

•ACLs control which traffic is allowed or denied, so an incorrect ACL may be blocking access to the file server.

•Why not the other options?

•Switching loop (B): A switching loop occurs at Layer 2 (not Layer 3) and causes network-wide broadcast storms, not just loss of access to a file server.

•Duplicate IP addresses (C): This would cause connectivity issues for the devices with the conflict, but not necessarily prevent all users from accessing the file server.

•Wrong default route (D): The default route is used for traffic leaving the local network. If users are unable to access an internal file server, this is unlikely to be the issue.

Traffic analysis involves monitoring and inspecting network traffic flows to detect unusual patterns, such as a workstation sending large volumes of outbound SMTP (spam). This process enables identification of malware as the root cause.

B. Availability monitoring checks uptime but doesn’t diagnose spam traffic.

C. Baseline metrics show normal usage but don’t pinpoint infected hosts.

D. Network discovery identifies devices, not malicious traffic flows.

References (CompTIA Network+ N10-009):

Domain: Network Security — Traffic analysis, malware detection, identifying compromised hosts.

The correct answer is Platform as a Service (PaaS). PaaS provides developers with a ready-to-use platform that includes runtime environments, developer tools, middleware, and database services. Developers can focus on writing code while the provider handles security patches, updates, and infrastructure management.

A. CaaS (Containers as a Service) focuses on deploying and managing containerized applications, not providing full developer platforms.

B. IaaS delivers virtual machines, storage, and networking, but administrators must install and maintain the OS, middleware, and updates.

D. SaaS provides end-user applications (e.g., email, CRM), not platforms for development.

By using PaaS, the developers can build applications quickly and cost-effectively without worrying about underlying infrastructure or system maintenance.

References (CompTIA Network+ N10-009):

Domain: Networking Concepts — Cloud service models (IaaS, PaaS, SaaS, CaaS).

A mesh network is the best solution for providing reliable wireless service to public safety vehicles. In a mesh network, each node (vehicle) can connect to multiple other nodes, providing multiple paths for data to travel. This enhances reliability and redundancy, ensuring continuous connectivity even if one or more nodes fail. Mesh networks are highly resilient and are well-suited for dynamic and mobile environments such as public safety operations.References: CompTIA Network+ study materials.