CCIE Data Center (legacy) — Question 38

Which two statements about connecting spines to the Inter-Site Network are true? (Choose two.)

Answer options

• A. Only spines connecting to the ISN must be EX or later HW.
• B. Spine-facing interfaces on the ISN must be configured using subinterface VLAN 4.
• C. Spine to ISN links can be configured with OSPF or static routes.
• D. All spines in a site must be EX or later HW.
• E. Sites must have two or more spines connected to the ISN.

Correct answer: A, E

Explanation

Option A is correct because only spines that connect to the ISN are required to be on EX hardware or newer. Option E is also correct as having multiple spines connected to the ISN ensures redundancy and reliability. The other options are incorrect as they either make statements about configuration requirements that are not necessarily true or impose restrictions that don't align with best practices.