Same for:
- 5.3.9 Check Your Understanding – Secure WLANs
- 3.6.15 Check Your Understanding – Secure WLANs
1. What are the best ways to secure WLANs? (Choose two.)
or
What are the two best ways to secure WLANs? (Choose two.)
- Authentication
- SSID cloaking
- Encryption
- MAC address filtering
Explanation: Neither SSID cloaking nor MAC address filtering would deter a crafty intruder. The best way to secure a wireless network is to use authentication and encryption systems.
2. Which of the following authentication methods does not use a password shared between the wireless client and the AP?
or
Which authentication method does NOT use a password shared between the wireless client and the AP?
- WEP
- WPA
- WPA2
- WPA3
- Open
Explanation: WEP, WPA, WPA2, and WPA3 all use a pre-shared password between the wireless client and the AP.
3. Which encryption method is used by the original 802.11 specification?
or
Which encryption method is used by the original 802.11 specification?
- AES
- TKIP
- AES or TKIP
- RC4
Explanation: The original 802.11 specification was designed to secure the data using the Rivest Cipher 4 (RC4) encryption method with a static key.
4. Which of the following encryption methods uses CCMP to recognize if the encrypted and non-encrypted bits have been altered?
or
Which encryption method uses CCMP to recognize if the encrypted and non-encrypted bits have been altered?
- RC4
- TKIP
- AES
Explanation: AES uses the Counter Cipher Mode with Block Chaining Message Authentication Code Protocol (CCMP) that allows destination hosts to recognize if the encrypted and non-encrypted bits have been altered.
5. Which of the following authentication methods has the user enter a pre-shared password? (Choose two)
or
Which two authentication methods require the user to enter a pre-shared password? (Choose two.)
- Open
- WPA Personal
- WPA Enterprise
- WPA2 Personal
- WPA2 Enterprise
Explanation: WPA Personal and WPA2 Personal both use a pre-shared password that wireless clients use to authenticate with the AP.