Identifying subnets of an IPv4 in CIDR notation - Networking Fundamentals

Video as requested by my friend Henry.

Explanation:
- The /26 refers to the numbers of bits in the subnet mask
- The 1's in the subnet mask show that the first 26 bits are turned on
- Basically, the last octet in the netmask binary, is what is the leftover 1’s. We needed 26 1’s representing the CIDR. Since we are dealing with the fourth octet, we refer back to the original IP at the same octet & convert it to binary so we can binary multiply them together. With that product converted to decimal, we can get the last octet in our subnet id.

Please note in the video I accidentally mentioned binary multiplication, when in actuality I was meaning to say we just multiply the binary numbers. So essentially multiply them as if they are normal numbers, don't worry about binary multiplication. Also, I apologize if anything is unclear, my brain was fried from doing my telecom/networking homework all night and this was recorded at about two in the morning!