Protecting Networks: Managerial Controls and Wireless Security
Introduced| English |
|---|
| split tunneling/splɪt ˈtʌnəlɪŋ/ |
| WPA3/ˌdʌbljuː piː eɪ ˈθriː/ |
Policies set the standard
- A router security policy and switch security policy ban local accounts.
- A VPN policy sets authentication rules and forbids split tunneling 分离隧道.
- A wireless security policy requires strong encryption.
Locking down wireless
- Disable beacon frames so the network is harder to find.
- Control signal strength so it does not leak outside the building.
- Enable WPA3 Wi-Fi 保护接入第三代 — old WEP and original WPA are broken.
Strong wireless choice or weak?
WPA3 is strong; WEP and the original WPA are broken. Reducing signal leak and disabling beacons help.
Which is the strongest current wireless encryption?
WPA3 is today's strongest.
Why control a wireless network's signal strength?
A leaking signal invites outside attackers.
____ filtering allows only known devices onto the network.
MAC filtering restricts by hardware address.
Which harden a wireless network? (Choose all)
WEP is broken — it weakens security.
Restricting who joins
- Use MAC filtering to allow only known devices.
- Require users to authenticate before joining.
- Together these keep unknown devices off the network.
WEP and the original WPA have known, unfixable weaknesses. If a question offers them as a "secure" option, they are the wrong answer — WPA3 is today's strong choice.
WEP is a safe choice for a modern secure wireless network.
WEP is broken; use WPA3.
A café broadcasts a strong Wi-Fi signal that reaches the parking lot. An attacker sits outside and probes it. Controlling signal strength so the network stops at the walls removes that exposure entirely.
Written policies (router, switch, VPN, wireless) set a minimum standard. Harden wireless by disabling beacon frames, controlling signal strength, enabling WPA3, and using MAC filtering plus authentication. Never trust WEP or original WPA.