Multiple choice general knowledge science & technology

You live with your 4 other friends. All have laptops but only one internet connection. Service provider has noted the physical address(MAC address) of your subscribed laptop. How your friends can use internet on their laptops? (Select best option)

  1. By using proxy server.

  2. Using a hub.

  3. User can change their Physical address identical to subscribed laptop.

  4. Apply for another net connection.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

MAC (Media Access Control) addresses can be cloned or spoofed in software. By changing the MAC address on other laptops to match the ISP-registered MAC address, they can authenticate on the network. This is technically feasible though it violates ISP terms of service. A proxy server would work but requires the registered laptop to be always on. A hub doesn't solve authentication.