Questions: What happens to digital signals sent wirelessly over long distances? A. The signals are more likely to be affected by noise. B. The signals change so that data are less likely to be reliable. C. The signals become stronger the farther they are from the recipient. D. The signals become weaker as they move away from the source.

What happens to digital signals sent wirelessly over long distances? A. The signals are more likely to be affected by noise. B. The signals change so that data are less likely to be reliable. C. The signals become stronger the farther they are from the recipient. D. The signals become weaker as they move away from the source.

Transcript text: Apex Learning - Courses ning.com/public/activity/1004002/assessment $\uparrow$ 1.4.2 Test (CST): Waves Question 19 of 25 What happens to digital signals sent wirelessly over long distances? A. The signals are more likely to be affected by noise. B. The signals change so that data are less likely to be reliable. C. The signals become stronger the farther they are from the recipient. D. The signals become weaker as they move away from the source. SUBMIT PREVIOUS

Solution

Solution Steps

Step 1: Analyze the Options

To determine what happens to digital signals sent wirelessly over long distances, we need to analyze each option:

Option A: "The signals are more likely to be affected by noise." This is true because as signals travel over long distances, they can encounter various sources of interference and noise, which can degrade the signal quality.
Option B: "The signals change so that data are less likely to be reliable." While this can be a consequence of noise and interference, it is not a direct effect of distance itself.
Option C: "The signals become stronger the farther they are from the recipient." This is incorrect because signals generally weaken as they travel further from the source.
Option D: "The signals become weaker as they move away from the source." This is true because signal strength typically diminishes with distance due to factors like path loss and attenuation.

Step 2: Determine the Most Accurate Option

From the analysis, options A and D are both true to some extent. However, option D directly addresses the effect of distance on signal strength, which is the primary concern when discussing long-distance wireless transmission.