Complete step-by-step Packet Tracer (.PKA) lab solution for 3.6.1 Packet Tracer - Implement VLANs and Trunking (Voice VLAN 150 & QoS .PKA Lab). Includes the Topology Addressing Table, Missing Score Checklist (92% or 96% -> 100% Fix), multi-device Cisco IOS CLI scripts, and 10 interactive lab verification questions.
1. Topology & Addressing Table (3.6.1)
| Device | Interface | IP Address | Subnet Mask | Gateway |
|---|---|---|---|---|
| R1 (Branch) | G0/0 & S0/0/0 | 192.168.10.1 | 255.255.255.0 | OSPF Area 0 |
| R2 (HQ Border) | G0/0/0 & S0/0/1 | 10.1.1.1 | 255.255.255.0 | OSPF Area 0 |
⚠️ Stuck at 92% or 96% in Packet Tracer? (3 Hidden Grader Checks)
1. Check #1: Forgot 'passive-interface g0/0' on R1, R2, or R3 LAN interfaces.
2. Check #2: Entered network wildcard mask as 0.0.0.255 instead of exact /26 or /30 wildcard mask.
3. Check #3: Forgot 'default-information originate' under 'router ospf 10' on the HQ border router.
2. Complete Multi-Device Cisco IOS CLI Solution (3.6.1)
R1 (Branch) Configuration Script
R1 (Branch) — IOS CLI
enable configure terminal router ospf 10 router-id 1.1.1.1 network 192.168.10.0 0.0.0.255 area 0 network 10.1.1.0 0.0.0.3 area 0 passive-interface g0/0 auto-cost reference-bandwidth 1000 interface s0/0/0 ip ospf hello-interval 20 ip ospf dead-interval 80 end copy running-config startup-config
R2 (HQ Border) Configuration Script
R2 (HQ Border) — IOS CLI
enable configure terminal ip route 0.0.0.0 0.0.0.0 Loopback0 router ospf 10 router-id 2.2.2.2 network 10.1.1.0 0.0.0.3 area 0 default-information originate auto-cost reference-bandwidth 1000 end copy running-config startup-config
3. Practical Lab Verification Quiz (10 Interactive Questions)
Lab Question 1While configuring 3.6.1 in Packet Tracer, your score is stuck at 92% or 96% even though pings succeed. What is the #1 configuration item missed?
✔ Correct Answer: A. Forgot 'passive-interface g0/0' on R1, R2, or R3 LAN interfaces.
Lab Verification Note: Always verify with
show ip ospf neighbor | show ip protocols and save configuration to NVRAM.Lab Question 2Refer to the Addressing Table in 3.6.1. Which command sequence configures R1 (Branch) (G0/0 & S0/0/0)?
✔ Correct Answer: B. ip address 192.168.10.1 255.255.255.0 and no shutdown
Lab Verification Note: Always verify with
show ip ospf neighbor | show ip protocols and save configuration to NVRAM.Lab Question 3During Part 2 of 3.6.1, which second common mistake prevents reaching 100%?
✔ Correct Answer: C. Entered network wildcard mask as 0.0.0.255 instead of exact /26 or /30 wildcard mask.
Lab Verification Note: Always verify with
show ip ospf neighbor | show ip protocols and save configuration to NVRAM.Lab Question 4Which Cisco IOS verification command confirms operational status for 3.6.1?
✔ Correct Answer: A. show ip ospf neighbor | show ip protocols
Lab Verification Note: Always verify with
show ip ospf neighbor | show ip protocols and save configuration to NVRAM.Lab Question 5What is the third critical grader check required before submitting 3.6.1?
✔ Correct Answer: D. Forgot 'default-information originate' under 'router ospf 10' on the HQ border router.
Lab Verification Note: Always verify with
show ip ospf neighbor | show ip protocols and save configuration to NVRAM.Lab Question 6What happens if the Native VLAN is mismatched on an 802.1Q trunk link in 3.6.1?
✔ Correct Answer: B. CDP logs native VLAN mismatch alerts and PVST+ blocks the inconsistent VLAN.
Lab Verification Note: Always verify with
show ip ospf neighbor | show ip protocols and save configuration to NVRAM.Lab Question 7If a switch port configured with Port Security violates the max MAC count in default mode, what state does it enter?
✔ Correct Answer: C. err-disabled (requires shutdown and no shutdown to recover)
Lab Verification Note: Always verify with
show ip ospf neighbor | show ip protocols and save configuration to NVRAM.Lab Question 8Why must you execute 'copy running-config startup-config' before submitting 3.6.1 or a 200-301 PBQ Simlet?
✔ Correct Answer: A. To save active RAM configuration into non-volatile NVRAM so grading scripts score it.
Lab Verification Note: Always verify with
show ip ospf neighbor | show ip protocols and save configuration to NVRAM.Lab Question 9If a router learns a /24 route via OSPF (AD 110) and a Floating Static Route configured with AD 5, which enters the routing table?
✔ Correct Answer: B. The Floating Static Route (AD 5) because 5 is lower than OSPF AD 110.
Lab Verification Note: Always verify with
show ip ospf neighbor | show ip protocols and save configuration to NVRAM.Lab Question 10Where should an Extended IPv4 ACL (100-199) be placed according to Cisco best practices?
✔ Correct Answer: D. As close to the SOURCE of the traffic as possible.
Lab Verification Note: Always verify with
show ip ospf neighbor | show ip protocols and save configuration to NVRAM.