220-1002 · Question #374
Which of the following wireless security protocols supports the use of a 40-bit encryption key?
The correct answer is B. WEP. WEP (Wired Equivalent Privacy) was the original 802.11 wireless security standard and uses RC4 stream cipher with either a 40-bit (64-bit total with 24-bit IV) or 104-bit (128-bit total with 24-bit IV) encryption key. WEP is considered severely broken and obsolete. WPA (Wi-Fi…
Question
Which of the following wireless security protocols supports the use of a 40-bit encryption key?
Options
- ATKIP
- BWEP
- CWPA
- DWPA2
How the community answered
(27 responses)- A4% (1)
- B89% (24)
- C7% (2)
Explanation
WEP (Wired Equivalent Privacy) was the original 802.11 wireless security standard and uses RC4 stream cipher with either a 40-bit (64-bit total with 24-bit IV) or 104-bit (128-bit total with 24-bit IV) encryption key. WEP is considered severely broken and obsolete. WPA (Wi-Fi Protected Access) replaced WEP and uses TKIP with 128-bit keys; TKIP is the key management protocol, not an encryption key size. WPA2 uses AES-CCMP with 128-bit or 256-bit keys. Neither WPA nor WPA2 use a 40-bit key, making WEP the only correct answer.
Topics
Community Discussion
No community discussion yet for this question.