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Exam 300-430 All Questions

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Exam 300-430 topic 1 question 138 discussion

Actual exam question from Cisco's 300-430
Question #: 138
Topic #: 1
[All 300-430 Questions]

During the EAP process and specifically related to the client authentication session, which encrypted key is sent from the RADIUS server to the access point?

  • A. WPA key
  • B. session key
  • C. encryption key
  • D. shared-secret key
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Suggested Answer: B 🗳️

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rrahim
2 months, 1 week ago
Selected Answer: B
During the Extensible Authentication Protocol (EAP) process, the RADIUS server and the client establish a secure session for authentication. As part of this process, the RADIUS server sends a session key to the access point (AP). This session key (also known as the Pairwise Master Key (PMK)) is encrypted and sent securely from the RADIUS server to the AP after the client successfully authenticates. The AP then derives encryption keys from this session key to encrypt wireless traffic. Why Not the Other Options? Option Reason for Elimination A. WPA key WPA does not use a specific "WPA key" sent by the RADIUS server. Instead, the session key (PMK) is used to derive encryption keys like the PTK (Pairwise Transient Key). C. Encryption key The RADIUS server does not send an "encryption key" directly. Instead, it sends the session key, which is later used to derive encryption keys. D. Shared-secret key The shared-secret key is used for authentication between the RADIUS server and the AP, but it is not sent to the AP during the EAP process.
upvoted 1 times
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Vlad_Is_Love_ua
9 months, 2 weeks ago
Selected Answer: B
Once a client is associated with the AP, it must be authenticated and cryptographic keys generated for its session. An entire hierarchy of keys must be generated, beginning with the Master Session Key (MSK).
upvoted 3 times
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kthekillerc
2 years, 2 months ago
provided answer is correct
upvoted 3 times
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Sorvahr
3 years, 6 months ago
Answer is correct
upvoted 4 times
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