CCSA R81 156-215.81 Exam Dumps

 Phase 1 of the two-phase negotiation process conducted by IKE operates in Main mode or Aggressive mode12. Main mode is more secure than Aggressive mode, as it protects the identities of the peers and uses six messages to establish the IKE SA13. Authentication, Quick, and High Alert are not valid modes for IKE phase 1.

References: Understand IPsec IKEv1 Protocol, Internet Key Exchange for IPsec VPNs Configuration Guide, Internet Key Exchange

By default, the WebUI listens on port 80. The WebUI is a web-based interface that allows administrators to configure and monitor Gaia OS settings and features from a web browser. The WebUI uses the HTTP protocol to communicate with the Gaia machine, which by default uses port 80 as the standard port number. The other port numbers are not used by the WebUI by default, but they can be changed by modifying the Gaia configuration file or using CLISH commands. 

 RADIUS Accounting gets identity data from requests generated by the accounting client. RADIUS Accounting is a feature that allows tracking and measuring resource usage of network services by users. The accounting client, which is usually a network access server (NAS), sends accounting requests to a RADIUS server with information about user sessions, such as start and stop times, bytes transmitted and received, IP addresses, etc. The RADIUS server records this information in a database for billing, auditing, or reporting purposes. One of the mandatory attributes that the accounting client must include in every accounting request is the User-Name attribute, which identifies the user who is accessing the network service.

There are two default users on Gaia Platform and neither can be deleted. The two default users are admin and monitor. The admin user has full access to the Gaia configuration and management tools, such as CLI and WebUI. The monitor user has read-only access to the Gaia configuration and management tools, and can only view the system status and settings. These two users cannot be deleted, but their passwords can be changed.References: [Gaia Administration Guide], [Gaia Overview]