Exam Prep Questions

Question 1 What designator must the OSPF backbone always use when being configured?

  • A. IA

  • B. Area 0

  • C. Standard

  • D. Area51

A1: Answer B is correct. Area ID 0 is used to represent the backbone area. A backbone router is characterized as a router that has at least one interface connected to Area 0 (or OSPF transit area). Therefore, Area 0 is commonly referred to as the backbone area. Answer A is incorrect because IA is a designator in the routing table for an inter-area entry. Answer C is incorrect because the word “standard” is not a designator. The term is used to describe a single area environment that receives link updates, route summaries, and external route information. Answer D is incorrect because Area51 is a common theme ...

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