Public IP Address

Public IP Address

• A. It is assigned by your local router's DHCP
• B. It never changes
• C. It is only used for internal LAN communication
• D. Anyone on the internet can see it, anyone connected to the internet has one, cannot be repeated

Answer: (D)

Public IP address is the address that is reachable on the Internet and is assigned to your network by your Internet service provider. It’s the address that outside servers see when you connect to them, which is why it’s possible to reach a website or service from anywhere. This address is globally unique at any given time, so two networks aren’t using the same public IP simultaneously. Inside your home or office, devices typically use private IP addresses and share the single public IP through a router performing network address translation (NAT). That’s why the other statements aren’t accurate: the public IP isn’t handed out by your router’s DHCP, it can change if the ISP reassigns it, and public IPs aren’t needed for every device on the Internet (many sit behind NAT with private addresses).

Public IP address is the address that is reachable on the Internet and is assigned to your network by your Internet service provider. It’s the address that outside servers see when you connect to them, which is why it’s possible to reach a website or service from anywhere. This address is globally unique at any given time, so two networks aren’t using the same public IP simultaneously. Inside your home or office, devices typically use private IP addresses and share the single public IP through a router performing network address translation (NAT). That’s why the other statements aren’t accurate: the public IP isn’t handed out by your router’s DHCP, it can change if the ISP reassigns it, and public IPs aren’t needed for every device on the Internet (many sit behind NAT with private addresses).