Final CCNA Practical Review

60–75 min20 Questions

Skills Tested

End-to-end network troubleshooting across all layers
VLAN and trunk configuration validation
Inter-VLAN routing analysis
Static and dynamic routing decisions
OSPF neighbor and route verification
DHCP, DNS, and NAT troubleshooting
ACL traffic filtering analysis
Wireless and port security concepts
CLI interpretation across multiple devices

Progress0%

You are assigned to troubleshoot a production network before a major deployment.

Reports:

!Some VLANs cannot communicate with each other
!Internet access is inconsistent across subnets
!Routing appears unstable between sites
!One subnet cannot reach an application server
!Wireless clients can connect but have limited access

Analyze multiple simultaneous issues and determine their root causes. Apply systematic Layer 1–7 troubleshooting across switching, routing, services, and security.

Network Topology

Final Review Lab

💻PC-AVLAN 10 .10.10

💻PC-BVLAN 20 .20.10

🔀S1trunk G0/1 + AP

🌐R1.10.1 | .20.1 | .12.1

🌐R2.12.2 | .30.1 | NAT

🖥️Server192.168.30.10

🌍Internetvia NAT

R1↔R2 link10.0.12.0/30

AP on S1VLAN 20 wireless

Troubleshooting

Q1/20

PC-A (VLAN 10, 192.168.10.10) can reach its default gateway but cannot communicate with PC-B (VLAN 20, 192.168.20.10). What is the MOST likely issue?

Progress0 correct

Q1Q20

Lessons Reinforced

Lessons 83: Final ReviewLessons 1–82: Full Course Comprehensive Review