Which measure does not improve security on public networks?

Which measure does not improve security on public networks?

• A. Disabling firewall permanently.
• B. Keeping software updated.
• C. Using a VPN.
• D. Verifying network name before connecting.

Answer: (A)

On public networks, security relies on layered defenses that protect data as it travels and prevent intrusions. A firewall acts as a barrier, filtering traffic and blocking unauthorized access. Turning it off permanently removes that protection, making your device more vulnerable and not improving security. In contrast, keeping software updated patches known vulnerabilities, reducing the chance that attackers can exploit them. Using a VPN encrypts your traffic, helping protect sensitive information from eavesdroppers on public networks. Verifying the network name before connecting helps you avoid rogue networks that could steal data or impersonate legitimate ones. So the action that does not improve security is disabling the firewall; the other practices strengthen security on public networks.

On public networks, security relies on layered defenses that protect data as it travels and prevent intrusions. A firewall acts as a barrier, filtering traffic and blocking unauthorized access. Turning it off permanently removes that protection, making your device more vulnerable and not improving security. In contrast, keeping software updated patches known vulnerabilities, reducing the chance that attackers can exploit them. Using a VPN encrypts your traffic, helping protect sensitive information from eavesdroppers on public networks. Verifying the network name before connecting helps you avoid rogue networks that could steal data or impersonate legitimate ones. So the action that does not improve security is disabling the firewall; the other practices strengthen security on public networks.