Cisco Updated 350-401 Exam Questions and Answers by coby

The configuration line ‘aaa authentication login default group ISE-Servers local enable’ sets up the router to use the ISE-Servers group for authentication first. If both servers in the ISE-Servers group are unavailable, it falls back to using the local username database (‘local’). If there are no usernames defined in the configuration, then as a last resort, it uses the enable password (‘enable’) for login. References: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) training materials.

Nonstop Forwarding (NSF) is designed to maintain packet forwarding even when there is a failure in the route processor. When a redundant route processor fails, NSF works with Stateful Switchover (SSO) to ensure that the current forwarding state and routing tables are synchronized between the active and standby route processors. This synchronization allows the standby processor to immediately take over without any loss of packets. NSF ensures that the neighboring routers continue to forward packets based on the most recent tables without needing to reconverge.

References: The Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) course

The Identity Services Engine (ISE) in a Cisco SD-Access solution plays a crucial role in security and access control. It acts as a centralized policy management platform that enables the creation and enforcement of access policies for endpoint devices. ISE uses information such as user identity, device type, and other context to dynamically map endpoints to specific groups, thus defining the access levels and permissions for each device within the network. This ensures thatonly authorized users and devices can access certain network resources, enhancing the overall security posture.

References := Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR)