In CIDR notation, what does a /24 subnet mask represent?
Practice Questions
Q1
In CIDR notation, what does a /24 subnet mask represent?
255.255.255.0
255.255.0.0
255.0.0.0
255.255.255.255
Questions & Step-by-Step Solutions
In CIDR notation, what does a /24 subnet mask represent?
Step 1: Understand what CIDR notation is. CIDR stands for Classless Inter-Domain Routing, and it is a way to represent IP addresses and their associated network masks.
Step 2: Recognize that the '/24' in CIDR notation indicates the number of bits used for the network part of the address.
Step 3: Realize that a /24 subnet mask means that the first 24 bits of the IP address are used for the network, and the remaining bits are used for host addresses.
Step 4: Convert the /24 notation to a traditional subnet mask. A /24 subnet mask is equivalent to 255.255.255.0.
Step 5: Calculate the number of available IP addresses in a /24 subnet. With 8 bits left for hosts (32 total bits - 24 bits for the network), you can have 2^8 = 256 addresses.
Step 6: Note that out of these 256 addresses, 1 is reserved for the network address and 1 for the broadcast address, leaving 254 usable IP addresses for devices.
