Is this question from CEH officall stuff ? I doubt . If they are from dumps , I would like to add that never rely on dump's answers .... however you can use them for an idea how will the exam be

Yes, it is from the official CEH stuff, Career Academy boot Camp. To each module with video there is review_quiz.
I found in other places some mistakes. It was a question about WEP.
see below:
<question>
WEP is used on 802.11 networks, what was it designed for?
</question>
<answer Correct="No">
WEP is designed to provide a wireless local area network (WLAN) with a level of security and privacy comparable to what it usually expected of a wired LAN.
</answer>
<answer Correct="Yes">
WEP is designed to provide strong encryption to a wireless local area network (WLAN) with a lever of integrity and privacy adequate for sensible but unclassified information.
</answer>
<answer Correct="No">
WEP is designed to provide a wireless local area network (WLAN) with a level of availability and
privacy comparable to what is usually expected of a wired LAN.
</answer>
<answer Correct="No">
WEP is designed to provide a wireless local area network (WLAN) with a level of privacy comparable
to what it usually expected of a wired LAN.
</answer>
Their answer is option 2. In my opinion it should be option 1, but I might be wrong. Maybe in their opinion, it's 2 because of the word encryption. Will be glad to hear your opinion.