Exam JN0-335 topic 1 question 52 discussion

D: When multiple ISP links are used: APBR can be used for selecting high-bandwidth, low-latency links for important applications, when more than one link is available. APBR can be used for creating a fallback link for important traffic in case of link failure. When multiple links are available, and the main link carrying the important application traffic suffers an outage, then the other link configured as the fallback link can be used to carry traffic. APBR can be used for segregating the traffic for deep inspection or analysis. With this feature, you can classify the traffic based on applications that are required to go through deep inspection and audit. If required, such traffic can be routed to a different device.

Answer is B

B Correct. AppQoE monitors application performance, and based on a score, selects the best possible link for that application traffic to meet performance requirements that are specified in the AppQoE SLA configuration, so to achieve this goal, AppQoE defines application-specific SLA rules and associates the SLA rules to an APBR profile and to a routing instance on which the application traffic will be sent.

APBR, which stands for Adaptive Policy-Based Routing. APBR allows for dynamic routing decisions based on various criteria, including the health or performance of WAN links. This component can monitor the status of the links and adaptively route traffic to ensure optimal performance, making it the right choice for handling situations with excessive packet loss on one of the WAN links.

B is correct