CIDR Notation: /18
Question
Which CIDR notation is the equivalent of the subnet mask of 255.255.192.0?
Answers
Explanations
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A. B. C. D.A
The subnet mask of 255.255.192.0 is a 24-bit mask with the first 18 bits set to 1, which means it can be represented in CIDR notation as /18.
CIDR notation is a shorthand way of representing the subnet mask of an IP address. It is a way of specifying the network portion of an IP address and the host portion of an IP address.
CIDR notation consists of an IP address followed by a slash (/) and the number of bits in the subnet mask. For example, the IP address 192.168.0.0 with a subnet mask of 255.255.255.0 can be represented in CIDR notation as 192.168.0.0/24, which means that the first 24 bits are the network portion of the IP address.
To determine the equivalent CIDR notation for a subnet mask, you count the number of consecutive 1s in the subnet mask, starting from the left side. In the case of a subnet mask of 255.255.192.0, the first 18 bits are set to 1, so the equivalent CIDR notation is /18.
Therefore, the correct answer to the question is A. /18.
