Which two statements are true about unified ISSU? (Choose two.)
Which two statements are true about unified ISSU? (Choose two.)
Unified In-Service Software Upgrade (ISSU) offers significant benefits such as reducing operating costs while maintaining high service levels and it necessitates the use of graceful Routing Engine switchover (GRES) and nonstop active routing (NSR) to ensure minimal disruption during upgrades.
You are troubleshooting an OSPF adjacency that is stuck in the ExStart state.
What would be the correct step to resolve the problem?
When an OSPF adjacency is stuck in the ExStart state, it is often due to a mismatch in the MTU settings between the two OSPF peers. Ensuring that the MTU settings match on both sides typically resolves this issue. This is because OSPF requires the MTU to be the same to successfully create the adjacency and proceed past the ExStart state.
You are configuring OSPF on a Junos device; however, you have not configured a router ID.
What is the default behavior in this situation?
When configuring OSPF on a Junos device and no router ID is manually configured, the system will use the IP address of the loopback interface with the highest IP address as the router ID by default. If no loopback interface is configured, then the IP address of the interface with the highest IP address will be used as the router ID.
Which two statements correctly describe IS-IS adjacencies? (Choose two.)
Level 1 adjacencies can form within the same (intra) area only, meaning they are limited to devices within a single area. On the other hand, Level 2 adjacencies are not restricted just to inter-area connections; they can be established both interarea and intra-area. This flexibility allows Level 2 routers to facilitate communication across a broader range of network segments, whether they span multiple areas or reside within the same area.
A route to the same destination is received from two different BGP sources.
Which criterion is considered first to determine the active BGP route?
When BGP selects the best path from multiple available routes to the same destination, the first criterion considered is the local preference. Local preference is a policy mechanism to prioritize one route over another within an AS (Autonomous System). Higher local preference values are preferred over lower values.