Practise exhibit-style questions that ask you to read a topology, table, command output or diagram before choosing the best answer.
Start Scenario PracticeExhibit: Users report no internet access after PAT was configured. The inside and outside interfaces are marked correctly. Which missing configuration is the most likely cause?
Explanation: PAT needs both the inside and outside interface roles and a NAT statement referencing an ACL that identifies the inside local addresses. Without the ACL match and NAT overload rule, translation does not occur for user traffic.
A junior network engineer configured a floating static route on Router R1 to provide backup connectivity to a remote network 10.10.10.0/24. The primary connection uses OSPF. However, after the primary link fails, hosts on R1 cannot reach the remote network. The OSPF adjacency is down, and the floating static route is not appearing in the routing table. Based on the exhibit, what is the most likely cause of the issue?
Explanation: Option B is correct because the floating static route's next-hop becomes unreachable after the primary OSPF link fails. In the exhibit, the next-hop IP is likely configured to an address that is only reachable via OSPF; when that adjacency drops, the router has no route to the next-hop, so it cannot recursively resolve the static route. As a result, the route does not appear in the routing table. Option A is wrong because the route is present in the configuration (as a floating static route). Option C is wrong because the administrative distance of the floating static route is intentionally higher than OSPF's so that it only installs when OSPF fails; this is correct behavior. Option D is wrong because a default route would not override a more specific static route to 10.10.10.0/24.
Exhibit: A router has the following routes in its routing table: - OSPF: 10.1.1.0/24 - Static: 10.1.1.128/25 - Default: 0.0.0.0/0 A packet is destined for 10.1.1.130. Which route does the router use?
Explanation: Routers use longest-prefix match before they think about metrics. The /25 route for 10.1.1.128/25 is more specific than the /24 or the default route, so traffic for 10.1.1.130 follows that path.
A switch stack is running PVST+. Users on VLAN 40 lose connectivity for roughly 30 seconds every time the uplink on SW2 flaps. Based on the exhibit, which change would most directly improve convergence for this VLAN?
Explanation: The output shows VLAN 40 is still using the legacy IEEE STP process, which converges much more slowly than Rapid PVST+. Moving the switch to rapid-pvst mode gives VLAN 40 the faster proposal/agreement behavior that typically cuts convergence time from tens of seconds to a few seconds.
A network administrator is troubleshooting an issue where internal hosts can ping the company's web server by IP address (192.0.2.10) but cannot access it using the fully qualified domain name www.example.com. The DNS server (192.0.2.5) is reachable and responds to queries. The administrator runs nslookup www.example.com from a host and receives the following output: C:\> nslookup www.example.com Server: UnKnown Address: 192.0.2.5 Name: www.example.com Address: 192.0.2.20 Based on the output, what is the most likely cause of the problem?
Explanation: The nslookup output shows that www.example.com resolves to 192.0.2.20, but the web server is at 192.0.2.10. This indicates the DNS A record is incorrect and must be updated to point to the correct IP. Pinging by IP works because it bypasses DNS, confirming network connectivity. The host's DNS cache is not the issue because nslookup queries the server directly and still returns the wrong address. The firewall is not involved since pinging by IP succeeds, and the DNS server is authoritative (the response is received).
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Practice all Refer to the Exhibit Practice QuestionsPractise exhibit-style questions that ask you to read a topology, table, command output or diagram before choosing the best answer. These appear throughout the 200-301 and require you to apply your knowledge, not just recall facts.
Cisco doesn't publish an exact breakdown, but scenario-based questions (especially exhibit and command-output formats) make up a significant portion of the 200-301. Practicing each scenario type ensures you're ready for any format.
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