WPA2-PSK (AES) is the most secure choice because the Advanced Encryption Standard (AES) with the CCMP protocol offers significantly stronger confidentiality and integrity than the older Temporal Key Integrity Protocol (TKIP) or the obsolete WEP algorithm. Using Open leaves traffic completely unencrypted. Therefore, selecting WPA2-PSK with AES provides the highest level of security available from the listed options.
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CompTIA A+ 220-1102 (V14)
Security
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