CCNA Routing and Switching (legacy) — Question 83

What is the default administrative distance of OSPF?

Answer options

• A. 90
• B. 100
• C. 110
• D. 120

Correct answer: C

Explanation

The correct answer is C, as OSPF (Open Shortest Path First) has a default administrative distance of 110. Options A (90) and B (100) do not apply to OSPF; they pertain to other routing protocols like EIGRP and IS-IS, respectively. Option D (120) is the default for RIP, which is also incorrect for OSPF.