CCNA 200-301 Updated Exam

The verified answer is C and D. RSTP uses discarding, learning, and forwarding port states. Compared with classic STP, RSTP removes the separate listening and blocking names and converges more quickly through proposal and agreement behaviour. Cisco CCNA 200-301 v1.1 places this skill in Network Access, where the exam expects a working understanding of how the feature behaves on real Cisco networks, not just a memorized command. Listening and blocking are associated with 802.1D terminology, and speaking is not an RSTP port state. In production, this distinction matters because a misapplied command or design choice usually creates an outage, a security gap, or unnecessary troubleshooting noise. The correct choice matches the control-plane, data-plane, wireless, security, or services behaviour described in the scenario and should be preferred over options that merely sound related.

The data plane is responsible for forwarding traffic. In traditional devices, the data plane is distributed across the network devices themselves, even when the control and management functions are centralized or influenced by a controller. The control plane decides paths and builds tables; the data plane uses those tables to switch or route packets. The management plane handles configuration, monitoring, and administrative access. A policy plane may describe intent or business policy in some architectures, but it is not the forwarding plane. Cisco CCNA 200-301 v1.1 Automation and Programmability tests software-defined architecture at a conceptual level. The most important separation is that controller-based networking can centralize control while forwarding still occurs on the devices. The plane that is distributed and responsible for traffic forwarding is the data plane. Therefore, D is correct.

PortFast is used on access ports that connect to end devices, not to other switches. Its practical effect is to reduce spanning-tree convergence delay for those edge ports. In normal 802.1D behavior, a port may pass through blocking, listening, and learning before it forwards frames. PortFast bypasses the listening and learning delay for a trusted edge connection and allows the port to enter forwarding quickly when the link comes up. Cisco CCNA 200-301 v1.1 places this under Network Access because it is a switching feature that directly affects host connectivity. The wording in the answer choices matters: PortFast does not enable BPDUs, and it does not put the port into the listening state. It also should not be treated as a loop-prevention feature by itself; if a switch is accidentally connected to a PortFast port, BPDU Guard is normally paired with it. The clean exam answer is that PortFast minimizes spanning-tree convergence time for access-facing ports.

Cisco syslog severity level 5 is notifications, often described as normal but significant operational events. A routing instance flapping fits that category because the device is not necessarily failing completely, but the event is meaningful enough that operations staff should see it. Debug output belongs to severity 7, not notice. An ARP inspection failure is typically treated as a security or error condition, not a routine notification. A device restart can also produce level-5 messages on some Cisco platforms, but in this question set the better match is the routing instance flap because it represents an operational state change that should be logged without implying a critical fault. CCNA v1.1 IP Services includes syslog and device-management behavior, so the exam target is recognizing severity meanings rather than memorizing one message string. The safest interpretation is: notice-level messages report significant but noncritical state changes. A route or routing instance flap is exactly that kind of significant network event.