What is the CIDR notation for a subnet mask of 255.255.255.192?

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Question: What is the CIDR notation for a subnet mask of 255.255.255.192?

Options:

Correct Answer: /26

Solution:

The CIDR notation for a subnet mask of 255.255.255.192 is /26, indicating 26 bits are used for the network part.

What is the CIDR notation for a subnet mask of 255.255.255.192?

What is the CIDR notation for a subnet mask of 255.255.255.192?

Step 1: Understand what a subnet mask is. A subnet mask helps to divide an IP address into a network part and a host part.
Step 2: Convert the subnet mask 255.255.255.192 into binary. The binary representation is 11111111.11111111.11111111.11000000.
Step 3: Count the number of '1's in the binary representation. In this case, there are 26 '1's.
Step 4: Write the CIDR notation by using a slash followed by the number of '1's counted. This gives us /26.
Step 5: Conclude that the CIDR notation for the subnet mask 255.255.255.192 is /26.

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