CCNA & CCNP practice labs — hands-on Cisco CML scenarios

CCNA L3 Switching: A New VLAN, End to End

A new building-systems VLAN has been provisioned. Carry it, route it and advertise it so its controllers reach the edge.

CCNA46 min3 objectives

CCNA L3 Switching: Filters on the VLAN Gateways

Finance must be walled off from general users. Write two filters and put each where its VLAN's traffic enters the switch.

CCNA55 min3 objectives

CCNA L3 Switching: Bring the Switch Into OSPF

The static routes are gone. Bring the distribution switch into OSPF so the campus and the edge learn each other.

CCNA42 min3 objectives

CCNA L3 Switching: DHCP Across the Gateway

Hosts now get their addresses from a server two hops away. Make the switch relay the requests and keep the gateway range out of the pools.

CCNA45 min3 objectives

CCNA L3 Switching: A Routed Uplink to the Edge

Connect the campus to the edge router over a routed link, and give traffic a way out and back.

CCNA35 min3 objectives

CCNA L3 Switching: Retire the Router-on-a-Stick

The router-on-a-stick is gone. Turn the distribution switch into the gateway for both VLANs.

CCNA35 min3 objectives

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CCNA Break/Fix Capstone: One Floor, Two Layers, One Ticket

A full-path break/fix capstone for CCNA troubleshooting. A single floor was renumbered and re-cabled. Users on that floor cannot reach anything — not their default gateway, not other subnets, and not the internet. The change record mentions both the access switch and the internet edge. Your job: prove the path hop-by-hop from the client outward and repair every break. Fixing only one side does not change the symptom; both layers must be corrected.

CCNA75 min5 objectives

CCNA Break/Fix: The Adjacency That Forms and Never Finishes

A late-night rollback restored configs from before a WAN carrier change. Since then, both branches report OSPF neighbors that appear, start exchanging, and then reset—never reaching FULL. Users at Branch A cannot reach Branch B. Your task is to observe the partial adjacency behavior, isolate why the database exchange never completes, and restore the carrier’s standard everywhere it applies so reachability returns end-to-end.

CCNA65 min5 objectives

CCNA Break/Fix: Routes Configured, Never Installed

Troubleshoot a dual-stack hub-and-spoke where IPv6 traffic never flowed after go-live. IPv4 works end-to-end, but IPv6 static routes are present in running-config and missing from the RIB. Compare configured vs installed routes, trace next-hop reachability per link, and correct the next-hop so each static becomes active. Validate from the user LAN.

CCNA55 min5 objectives

CCNA Break/Fix: Subnets That Went Dark After Summary Tidy

Two internal subnets behind a branch router stopped working after a summarization tidy-up. Everything else inside the same /16 summary is fine, and the edge still has a discard route for the summary. Your job: trace which route each hop actually matches for those destinations, then restore reachability without removing or weakening the summary.

CCNA65 min6 objectives

CCNA Break/Fix: The Gateway Pair That Only Fails Over by Hand

An office floor’s redundant default gateway pair keeps needing manual intervention. During an uplink outage the active gateway stays active and strands users, and when the repaired router returns it seizes the VIP immediately and the floor bounces. Troubleshoot the pair’s failover behavior by examining what each router monitors and when it is allowed to take the role back. Bring the pair into compliance with the convergence standard without changing anything else.

CCNA55 min5 objectives

CCNA Break/Fix: Published Services Nobody Outside Can Open

A DMZ server was rebuilt onto a new IP last week. Since then, outside users cannot open its three published services, while the server itself can browse out normally. Your job: work from the public address toward the inside, diagnose where the forwarding breaks, and republish all three services on the advertised public IP without disrupting outbound internet access.

CCNA55 min4 objectives