Exam PCNSE topic 1 question 463 discussion

In this case, the answer is C, but not really, because of administrative distance is for differents routing protocols, in the case os two static routes is the metric.

Both static routes will have the same AD

A. The first route installed When two static routes have the same Administrative Distance (AD) and are configured for the same destination, the first route installed will take priority.

First route. If the option of metric then it would be option C

I think they meant to say metric.

I think the answer is C here

A I checked in our production and noticed that the preferred path is the one which installed first.

There is a new question with a snippet of CLI route inputs that effectively ask this same question but instead of AD it is referencing the Metric value. So between two identical routes which will be installed comparing metrics.

https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/networking/static-routes/static-route-overview#:~:text=By%20default%2C%20static,route%20is%20unavailable

At the beginning I thought the answer was C, but it doesn't make sense because both routes are static routes. Then I found this: "If an interface is configured with more than one static route to a peer (the BFD session has the same source IP address and same destination IP address), a single BFD session automatically handles the multiple static routes. This behavior reduces BFD sessions. If the static routes have different BFD profiles, the profile with the smallest Desired Minimum Tx Interval takes effect." https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/networking/bfd/bfd-overview/bfd-for-static-routes So I believe the answer is B

https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/networking/static-routes/static-route-overview

First its low administrative distance, then its chosen by higher metric. In this case they have the same administrative distance, it doesn't say if they have different metrics, assuming they do have the same metric then the answer would be B. I think the question and answers are not correct or worded properly. "By default, static routes have an administrative distance of 10. When the firewall has two or more routes to the same destination, it uses the route with the lowest administrative distance. By increasing the administrative distance of a static route to a value higher than a dynamic route, you can use the static route as a backup route if the dynamic route is unavailable." "You can configure a static route with a Bidirectional Forwarding Detection (BFD) profile so that if a BFD session between the firewall and the BFD peer fails, the firewall removes the failed static route from the RIB and FIB tables and uses an alternative route with a lower priority."

C is correct

It should be lower AD By default, static routes have an administrative distance of 10. When the firewall has two or more routes to the same destination, it uses the route with the lowest administrative distance. -https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/networking/static-routes/static-route-overview