Question

What is the subnet mask of /25?
Group of answer choices

255.255.255.0

255.255.255.192

255.255.128.0

255.255.255.128

Answer 1

A subnet mask of /25 corresponds to 255.255.255.128.

Here's a brief explanation of how this works:

- The "/25" notation indicates that the first 25 bits of the subnet mask are set to '1', while the remaining bits (32 - 25 = 7 bits) are set to '0'.
- In decimal representation, this translates to:
- 255 (11111111) for the first 24 bits,
- 128 (10000000) for the 25th bit,
- 0 for the remaining bits.

Thus, the answer is **255.255.255.128**.