JNCIE-DC: Juniper Networks Certified Expert – Data Center — Question 10

Your customer is planning to secure a data center with webservers reachable through two ISP connections terminating on each node of an active/passive SRX
Series chassis cluster. ISP-1 is the preferred connection because it provides higher bandwidth than ISP-2.
Which two must you include in your design proposal to meet this requirement? (Choose two.)

Answer options

• A. Use conditional BGP advertisements and use interface monitoring for both ISP interfaces.
• B. Use static routing and use interface monitoring for both ISP interfaces.
• C. Ensure that both ISP interfaces are in the same zone and use interface monitoring.
• D. Ensure that both the ISP interfaces are in different zones and use interface monitoring.

Correct answer: A, D

Explanation

The correct answer is A and D. Using conditional BGP advertisements allows for better handling of routing preferences, ensuring that ISP-1 is preferred due to its higher bandwidth. Meanwhile, placing the ISP interfaces in different zones (D) effectively separates the traffic paths for redundancy and monitoring. Options B and C do not achieve the same level of dynamic routing capability or proper traffic segregation required for this design.