350-401 Question 275
Single answerA network administrator is configuring a wireless network for a branch office. The administrator decides to use a Pre-Shared Key (PSK) for authentication. Which of the following statements about PSK is correct?
- A
PSK requires a RADIUS server for key distribution and authentication.
- B
PSK is less secure compared to enterprise authentication methods due to shared key usage.
- C
PSK generates unique encryption keys for each session using EAP-TLS.
- D
PSK is ideal for environments requiring individual user identity verification.
Show answer and explanation
Correct answer: B
Explanation
Pre-Shared Key (PSK) is a simpler authentication method often used in smaller environments without the complexity of a RADIUS server or individual user authentication. However, it is less secure than enterprise methods because the same key is shared among all users, making it susceptible to compromise if the key is leaked.
- A. Incorrect.
Incorrect: PSK does not require a RADIUS server. It is a simpler authentication method where the same pre-shared key is used by all devices.
- B. Correct.
Correct: PSK is less secure than enterprise methods (e.g., 802.1X) because the same key is shared among all users, making it vulnerable to key sharing or compromise.
- C. Incorrect.
Incorrect: PSK does not use EAP-TLS or generate unique encryption keys per session. It relies on a shared key for encryption.
- D. Incorrect.
Incorrect: PSK does not provide individual user identity verification since all devices use the same shared key to authenticate.