642-883 question 55 discussion


Which router has the su [20/115] entry pointing to NullO in its routing table
and why? (Choose two.)

  • A. CE5
  • B. PE5
  • C. PE6
  • D. The router is summarizing into
  • E. The router is suppressing the route
  • F. The L2/L1 IS-IS router is blocking the interarea route to the L1-only router
Created 2 months ago by kurvaanyad


This doesn't look good. I think one answer should be from the A-C, and the other from the D-F range.