Networking Fundamentals — Question 40

To which IP configuration does the CIDR notation 192.168.1.1/25 refer?

Answer options

• A. 192.168.1.1 255.255.255.64
• B. 192.168.1.1 255.255.255.1
• C. 192.168.1.1 255.255.255.32
• D. 192.168.1.1 255.255.255.256
• E. 192.168.1.1 255.255.255.128

Correct answer: E

Explanation

The CIDR notation /25 indicates a subnet mask of 255.255.255.128, as it means that the first 25 bits are used for the network part. Option E is correct because it matches this subnet mask. The other options either provide incorrect subnet masks that do not correspond to /25, making them invalid choices.