Network Segmentation — CompTIA Network+ (N10-009) Practice Questions
Network segmentation is the practice of dividing a larger network into smaller, isolated subnetworks to improve security, performance, and manageability. On the Network+ exam, segmentation is implemented through VLANs at Layer 2 and subnetting at Layer 3, with candidates expected to understand how traffic between segments is controlled by routers or Layer 3 switches and filtered by firewall policies. Segmentation limits the blast radius of a security incident by containing lateral movement, and it reduces unnecessary broadcast traffic within each segment. The exam tests both the conceptual reasoning for segmentation and the practical configuration knowledge needed to implement and troubleshoot VLAN-based designs.
Free questions on network segmentation
What is the purpose of a VLAN?
Free question · easy · full answer + explanation
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