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  Packet Tracer Labs

 

Subnetting Practice

 

The need to have solid understanding of subnets is at the very heart of successfully cracking the Cisco certification. Majority of the questionnaire in CCNA belongs to subnetting. Hence, subnetting practice is – without a doubt – an essential part of your preparation for any basic Cisco examination.  

In simple terms, we need subnets to communicate with every device and service available on that network. To achieve that, these devices and services are required to have a unique address called – IP address. An IP address not just assigns a unique identification number to every machine on a network, but it also provides a mechanism for different devices and services to communicate with each other. 

An IP address is composed of a network, subnet and the host bits. Every new subnet is created by borrowing the final bit from the network part of an IP address. And when we subnet a network, we categorize it into unique coherent groups, known as the hosts. An IP address assigns bits to those subnets and carries them in its host section. Having different subnets for different items in the same network allows us to create many hosts having unique access priorities. 

Therefore, subnetting practice is very much required when preparing for the CCNA exam. To crack the exam, passing marks of 825 out of 1000 are needed which becomes even more difficult to score when we have a stringent time limit that we are given. So, you need to have a thorough understanding of subnetting to finish your exam in time. Hence, I advise you to prepare well for this topic because it is the most time consuming part of the exam especially if you are slow at calculations. 

Nevertheless, you don't have to be a genius in math’s to learn subnetting because it is more of the concept rather than a mathematical problem, but you should learn to calculate it accurately and quickly. Once you get the hold of the concept then you can easily solve different subnetting question in a far less amount of time. 

Below is the practice questions based on different Subnetting Classes. I have especially designed these questions to help prepare for subnetting in the best possible way. Practicing these questions will improve your subnetting skills, so begin now! And don't forget to check your answers after you solve them (answers provided). 

Important: If your concepts are not clear yet then you should check subnetting examples first.

 

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