Subnetting, Packet Flow, and Troubleshooting

35–45 min15 Questions

Skills Tested

Perform same subnet test
Identify network, broadcast, and host ranges
Use block size to determine subnet ranges
Understand subnet boundaries quickly
Apply VLSM concepts conceptually
Identify when a default gateway is used
Analyze packet flow (local vs remote)
Use ping for troubleshooting
Follow a structured troubleshooting process

Progress0%

You are working as a junior network engineer.

Issues reported:

!Some devices can communicate while others cannot
!Some can ping locally but not remotely

Analyze subnetting, packet flow, and configurations to identify what is happening.

Network Topology

192.168.1.0/26

💻PC-A.10/26Subnet 0

🖥️PC-B.50/26Subnet 0

🔀Switch

🌐RouterG0/0: .1/26G0/1: .65/26

🖥️PC-C.70/26Subnet 1

Subnet 0: 192.168.1.0/26

(0–63)

Subnet 1: 192.168.1.64/26

(64–127)

Multiple Choice

Q1/15

What is the main purpose of subnetting?

Progress0 correct

Q1Q15

Lessons Reinforced

Lesson 30: Subnetting FundamentalsLesson 31: Network / Broadcast / Host RangeLesson 32: Subnet PatternsLesson 33: VLSMLesson 34: Default GatewayLesson 35: Packet FlowLesson 36: ICMP / PingLesson 37: Troubleshooting