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Exercise 3: VLSM (Self-Practice)

IP Subnetting course

Muhammad Muntiqa · 2025-08-22 09:19 · 0 claps · 0.8 min read
#subnetting #vlsm #ccna-training #cisco-certifications
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Exercise 3: VLSM (Self-Practice)

IP Subnetting course

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Welcome back to our IP Subnetting course.

Check out Ex. 1 (Beginner Level): **here**

Check out Ex. 2 (Beginner Level): **here**

Check out Chapter 3: **here**

Section: **3.2 [3.3](https://medium.com/@mohdmuntiqa/3-3-practice-exercise-on-vlsm-efd8710ab2e0)**

Check out Chapter 2: **here**

Sections: **2.2 2.3**

Check out Self Practice Test on IP Subnetting **here**

Check out Chapter 1: **here**

Sections: **1.2 [1.3](https://medium.com/@mohdmuntiqa/1-3-understanding-ipv4-addresses-20550042d85d) [1.4](https://medium.com/@mohdmuntiqa/1-4-ip-address-classes-447ee3160f55) 1.5**

Check out the course Table of Content **here**

Exercise 3: Variable Length Subnet Mask (VLSM)

Scenario: You’ve been given a 192.168.5.0 /24 and need to create subnet for the following:

  1. IT: 50 devices.
  2. HR: 20 devices.
  3. Admin: 10 devices.
  4. Sales: 30 devices.

Find out the following:

  1. Network Address.
  2. Usable IP Addresses/ subnet.
  3. Broadcast Address.
  4. New subnet mask/ subnet.

If you need to revise about VLSM, you can re-visit the step by step guide on VLSM **here**

If you enjoyed working through this beginner exercise, my e-book IP Subnetting 101 has dozens more beginner-friendly problems with step-by-step solutions. **Check it out here**


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