In a subnet mask of 255.255.255.192, how many subnets can be created from a Clas

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Question: In a subnet mask of 255.255.255.192, how many subnets can be created from a Class C network?

Options:

Correct Answer: 4

Solution:

The subnet mask 255.255.255.192 corresponds to /26, which allows for 2^(26-24) = 4 subnets from a Class C network.

In a subnet mask of 255.255.255.192, how many subnets can be created from a Class C network?

In a subnet mask of 255.255.255.192, how many subnets can be created from a Class C network?

Step 1: Understand that a Class C network has a default subnet mask of 255.255.255.0, which is also known as /24.
Step 2: Identify the given subnet mask, which is 255.255.255.192.
Step 3: Convert the subnet mask 255.255.255.192 to CIDR notation. This is /26 because the first 26 bits are used for the network part.
Step 4: Calculate how many bits are used for subnetting. Subtract the default Class C bits (24) from the new subnet mask bits (26). This gives you 26 - 24 = 2 bits for subnetting.
Step 5: Use the formula 2^n to find the number of subnets, where n is the number of bits used for subnetting. Here, n = 2, so calculate 2^2 = 4.
Step 6: Conclude that with a subnet mask of 255.255.255.192, you can create 4 subnets from a Class C network.

Subnetting – Understanding how subnet masks work and how they affect the number of available subnets in a given class of IP addresses.
CIDR Notation – Recognizing the relationship between subnet masks in decimal format and their CIDR (Classless Inter-Domain Routing) notation.
Classful Networking – Knowledge of Class C networks and their default subnetting characteristics.