CCNA Routing and Switching (legacy) — Question 74

Which route source code represents the routing protocol with a default administrative distance of 90 in the routing table?

Answer options

• A. S
• B. E
• C. D
• D. R
• E. O

Correct answer: C

Explanation

The correct answer is C, which stands for EIGRP (Enhanced Interior Gateway Routing Protocol), and it has a default administrative distance of 90. The other options represent different routing protocols: A is for OSPF (Open Shortest Path First) which has a distance of 110, B is for EIGRP external routes with a distance of 170, D is for RIP (Routing Information Protocol) with a distance of 120, and E is for OSPF inter-area routes.