CompTIA Network+ (N10-007) — Question 672

Which of the following WAN technologies provides a guaranteed throughput rate?

Answer options

• A. DSL
• B. T-1
• C. Cable broadband
• D. Dial-up

Correct answer: B

Explanation

The correct answer is B, T-1, as it offers a dedicated line with a guaranteed bandwidth of 1.544 Mbps. Options A, C, and D do not provide guaranteed throughput; DSL and cable broadband can be affected by network congestion, while dial-up has significantly lower and variable speeds.