350-401 Question #1044: Real Exam Question with Answer & Explanation

Question

An engineer must configure a new WLAN that supports 802.11r and requires users to enter a passphrase. What must be configured to support this requirement?

Options

• A802.1X and Fast Transition
• BFT PSK and Fast Transition
• C802.1X and SUITEB-1X
• DFT PSK and SUITEB-1X

Explanation

Explanation

FT PSK and Fast Transition is correct because 802.11r is the IEEE standard for Fast Transition (FT), which enables faster roaming between access points, and a passphrase-based authentication requires PSK (Pre-Shared Key) - not 802.1X, which requires a RADIUS server and certificates/credentials rather than a simple passphrase.

• Option A is wrong because 802.1X uses enterprise authentication (RADIUS/EAP), not a passphrase, and while it can work with Fast Transition, it doesn't match the passphrase requirement.
• Option C is wrong because 802.1X again doesn't use a passphrase, and SUITEB-1X is a high-security cryptographic suite for government/enterprise use - unrelated to simple passphrase authentication.
• Option D is wrong because SUITEB-1X is not required for 802.11r with a passphrase; it's an advanced security suite that adds unnecessary complexity beyond what's needed here.

💡 Memory Tip: Think "Passphrase = PSK" - any time a question mentions users entering a passphrase, PSK is your answer. Pair that with "802.11r = Fast Transition (FT)", and you'll immediately recognize FT PSK + Fast Transition as the winning combination.

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