220-1102 · Question #823
Which of the following is the most significant drawback of using the WEP protocol for wireless security?
The correct answer is C. Vulnerability to key-cracking attacks. The correct answer is C. Vulnerability to key-cracking attacks. WEP (Wired Equivalent Privacy) uses a static, weak RC4 encryption implementation with a flawed IV (Initialization Vector) scheme. An attacker can passively capture enough wireless traffic and use readily available…
Question
Which of the following is the most significant drawback of using the WEP protocol for wireless security?
Options
- AComplex configuration process
- BSlow data transfer speed
- CVulnerability to key-cracking attacks
- DIncompatibility with older devices
How the community answered
(21 responses)- A5% (1)
- B5% (1)
- C90% (19)
Explanation
The correct answer is C. Vulnerability to key-cracking attacks. WEP (Wired Equivalent Privacy) uses a static, weak RC4 encryption implementation with a flawed IV (Initialization Vector) scheme. An attacker can passively capture enough wireless traffic and use readily available tools to crack the WEP key in minutes, regardless of key length. This fundamental cryptographic weakness is why WEP is considered obsolete and should not be used. WEP is not particularly complex to configure (A), does not have significantly slower speeds than its contemporaries (B), and is actually compatible with older devices (D) - compatibility was one of its design goals.
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