312-50V12 Question #268: Real Exam Question with Answer & Explanation

Question

The security team of Debry Inc. decided to upgrade Wi-Fi security to thwart attacks such as dictionary attacks and key recovery attacks. For this purpose, the security team started implementing cutting-edge technology that uses a modern key establishment protocol called the simultaneous authentication of equals (SAE), also known as dragonfly key exchange, which replaces the PSK concept. What is the Wi-Fi encryption technology implemented by Debry Inc.?

Options

• AWPA
• BWEP
• CWPA3
• DWPA2

Explanation

Debry Inc. implemented WPA3, as indicated by its use of the Simultaneous Authentication of Equals (SAE) protocol, also known as dragonfly key exchange, which replaces the Pre-Shared Key (PSK) concept to bolster Wi-Fi security against dictionary and key recovery attacks.

Common mistakes.

• A. WPA (Wi-Fi Protected Access) is an older standard that uses TKIP and PSK, which are known to be vulnerable to several attacks and do not utilize the modern SAE protocol.
• B. WEP (Wired Equivalent Privacy) is an outdated and highly insecure Wi-Fi encryption standard that is easily compromised and predates modern security protocols like SAE.
• D. WPA2 (Wi-Fi Protected Access 2) primarily uses AES-CCMP but still relies on PSK for personal mode, making it susceptible to dictionary attacks if the PSK is weak, and it does not incorporate the SAE protocol.

Concept tested. WPA3 SAE key exchange protocol

Reference. https://learn.microsoft.com/en-us/windows-hardware/drivers/network/what-s-new-in-wi-fi-and-wi-fi-direct

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