An organization is using a linkstate routing that is not dependent on IP addressing .Which action enable information across area boundaries in this organization?
A. Assign level 1 router interface
B. Assign level 1 routers to different areas
C. Assign level 2 router interface to the backbone area
D. Assign level 2 router to different areas
E. Assign level 2 router interface to different area
The question is about IS-IS. So we can assign a router to different areas. We need to assign interfaces of the level 2 router to different areas. So I believe the correct answer is E.