Ann, a user, is experiencing issues trying to decrypt email on a new mobile device. She is unable to access internal resources, but she can get to the Internet while connected to the WLAN. Ann can…

Question

Options

• AThere is an incorrect certificate on the mobile device.
• BThere is no wireless connectivity.
• CAnn is using an incorrect password.
• DThe email application is not working correctly.
• EAnn's user account is disabled.

• A
  68% (17)
• B
  8% (2)
• C
  4% (1)
• D
  4% (1)
• E
  16% (4)

Explanation

The incorrect certificate on the mobile device is the most likely cause. The clues are: (1) authentication errors on the WLAN - enterprise WLANs often use 802.1X/EAP authentication, which requires a valid certificate; (2) she can access the internet but not internal resources - she is connected to the network at some level but not fully authenticated into the enterprise environment; (3) she can decrypt email on a desktop - her account is fine, ruling out account issues. B) No wireless connectivity is ruled out - she can reach the internet. C) Incorrect password would cause a different type of error and would affect both desktop and mobile equally. D) The email app issue doesn't explain the WLAN authentication errors. E) A disabled account would prevent desktop access too. A missing or untrusted certificate on the new mobile device is the classic cause of 802.1X WLAN authentication failures.

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