350-401 Question 269
Select 3A network engineer is configuring 802.1X authentication on a corporate network. The engineer needs to ensure that users connecting to the network are authenticated using a centralized RADIUS server. Which of the following steps are required to successfully implement 802.1X on the switch?
- A
Enable 802.1X globally on the switch.
- B
Configure the switch port to use the 'portfast' feature.
- C
Specify a RADIUS server for authentication.
- D
Set the switch port to an 'access' mode and enable 802.1X port control.
- E
Enable SNMP on the switch for monitoring purposes.
Show answer and explanation
Correct answers: A, C, D
Explanation
To implement 802.1X authentication, the switch must have 802.1X enabled globally, a RADIUS server configured for authentication, and the required switch ports set to 'access' mode with 802.1X port control enabled. These steps ensure that connected devices are authenticated through the RADIUS server before gaining network access. Other features like 'portfast' or SNMP are unrelated to the 802.1X process.
- A. Correct.
Enabling 802.1X globally on the switch is a required step to activate 802.1X functionality.
- B. Incorrect.
The 'portfast' feature is not related to 802.1X and is typically used to minimize Spanning Tree Protocol (STP) convergence times on access ports.
- C. Correct.
Specifying a RADIUS server is essential for the 802.1X authentication process as it facilitates centralized user authentication.
- D. Correct.
Setting the switch port to 'access' mode and enabling 802.1X port control ensures that the port operates in a mode where 802.1X authentication can be enforced.
- E. Incorrect.
Enabling SNMP is not required for 802.1X configuration, though it can be used for network monitoring.