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Which statement best describes an Open Shortest Path First (OSPF) virtual link? A. It designates the network’s backbone area.
B. It designates a physical connection between area border routers (ABR).
C. It connects area border routers (ABR) over a nonbackbone area.
D. It is associated with a specific physical link.
The correct answer is C. It connects area border routers (ABR) over a nonbackbone area.
Explanation: In OSPF, a virtual link is utilized to connect two area border routers (ABRs) across a non-backbone area to ensure that OSPF routing can be maintained. This allows the non-backbone area to communicate with the backbone area (Area 0) effectively, which is essential for proper routing in the OSPF network.