350-401 Question 185
Single answerA network administrator is configuring an enterprise network to ensure that specific traffic is directed to designated servers and to optimize network performance. The administrator has implemented IP SLA (Service Level Agreement) to monitor paths and verify the availability of the primary route. However, they also want to ensure automatic failover to a backup route in case of a failure. Which additional technology should the administrator implement in conjunction with IP SLA to meet this requirement?
- A
Object tracking
- B
Policy-Based Routing (PBR)
- C
Static routes
- D
Dynamic NAT
Show answer and explanation
Correct answer: A
Explanation
IP SLA by itself monitors the performance and availability of a route, but it does not modify the routing table. Object tracking integrates with IP SLA to dynamically adjust the routing table based on the state of the monitored route, enabling automatic failover to a backup route. This is the recommended technology to use in conjunction with IP SLA for this scenario.
- A. Correct.
Object tracking works with IP SLA to monitor the state of the primary route and dynamically adjust the routing table to trigger failover when the primary route becomes unavailable.
- B. Incorrect.
Policy-Based Routing (PBR) can route traffic based on policies, but it does not inherently work with IP SLA to provide automatic failover between routes.
- C. Incorrect.
Static routes are fixed and do not dynamically adjust based on the status of the primary route. They do not provide automatic failover capabilities.
- D. Incorrect.
Dynamic NAT is unrelated to route failover as it is used to translate private IP addresses to public IPs and vice versa.