CyberCertPrepSecurity FundamentalsNetworking FundamentalsEASYFree question
What does CIDR notation like 192.168.1.0/24 mean?
- A.The /24 means 24 computers
- B.CIDR (Classless Inter-Domain Routing) notation specifies a network address and its subnet mask - /24 means the first 24 bits are the network portion and the remaining 8 bits are for host addresses, equivalent to the subnet mask 255.255.255.0
- C.The /24 means 24 networks
- D./24 is the speed in Mbps
Why B is correct
CIDR notation: IP/prefix-length. /24 = 24 network bits, 8 host bits, mask 255.255.255.0. Common: /8 (16M hosts), /16 (65K hosts), /24 (254 hosts), /32 (single host). Used in: firewall rules, routing tables, and access control lists. Replaces classful addressing (A/B/C).
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