CompTIA Network+ (N10-008) — Question 154

Which of the following is the IEEE link cost for a Fast Ethernet interface in STP calculations?

Answer options

• A. 2
• B. 4
• C. 19
• D. 100

Correct answer: C

Explanation

The correct answer is C, as the IEEE standard designates a link cost of 19 for a Fast Ethernet interface in STP calculations. Options A, B, and D represent incorrect costs for this type of interface as they do not align with the established IEEE metrics.