200-301 Premium Exam Questions

A router installs the best route by applying two major rules: longest prefix match and administrative distance. Prefix length is considered first when routes describe different destination scopes; the more specific prefix wins for destinations inside that range. When routes have the same prefix length but come from different routing sources, the route with the lower administrative distance is preferred. In the answer set, the OSPF route to 10.0.0.0/30 is chosen over competing routes to the same /30 because OSPF has a better administrative distance than RIP and iBGP. The EIGRP host route to 10.0.0.1/32 is also installed because it is a more specific route to that single host. Cisco CCNA 200-301 v1.1 IP Connectivity requires engineers to interpret routing tables using these exact rules. The OSPF /16 is broader and does not replace a more specific /30 for matching destinations. The route table can contain both a network route and a host route when their prefixes differ.

A Layer 2 switch floods a frame with an unknown destination MAC address out all ports in the same VLAN except the port where the frame entered. That behavior is not a fault; it is normal Ethernet switching. The switch learns from the source MAC address of incoming frames, not from the unknown destination. If the destination MAC is already in the MAC address table, the frame is forwarded only out the associated port. If it is missing, the switch must treat the traffic as unknown unicast and flood within the VLAN so the destination has a chance to receive it. The switch does not drop the frame just because the destination is unknown, and it does not send it only to the CPU for learning. Cisco CCNA v1.1 Network Access covers switching fundamentals, including MAC learning, forwarding, filtering, and flooding. The decisive detail is the VLAN boundary: flooding is limited to the same VLAN and excludes the ingress port.

The verified answer is C. logging trap 4 sends warning severity messages and all more severe syslog messages to the server. Syslog severity numbers become more severe as the number decreases, so level 4 includes emergencies, alerts, critical, errors, and warnings. Cisco CCNA 200-301 v1.1 places this skill in IP Services, where the exam expects a working understanding of how the feature behaves on real Cisco networks, not just a memorized command. Level 5 would include notices but is not limited to warning and error conditions; levels 2 and 3 omit warnings. 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 task describes a default route. A router uses a default route when no more specific route matches the destination address in the routing table. In IPv4, the static default route is written with destination 0.0.0.0 and mask 0.0.0.0, followed by the next-hop IP address or exit interface. Since the router must forward unmatched traffic to 192.168.1.1, the correct configuration is the option that uses ip route 0.0.0.0 0.0.0.0 192.168.1.1. Cisco CCNA 200-301 v1.1 IP Connectivity requires engineers to recognize default routes because they are common at branch routers, internet edges, and lab topologies. A route to a specific network would not satisfy the requirement to forward all unmatched traffic. A default gateway command is for switches or hosts in limited contexts, not the proper router forwarding-table method here. The answer is C because it represents the static default route toward 192.168.1.1.