Compared to analog signals, digital signals typically allow faster transmission rates and provide higher accuracy/robustness under noise. Which choice captures this comparison?

Introduction / Context:
A core advantage of digital communication is that it represents information with discrete symbols (bits). This supports high-rate multiplexing and robust regeneration, improving practical throughput and reliability compared to many analog systems under similar conditions.

Given Data / Assumptions:

• We compare digital and analog signaling in typical modern networks.
• Noise and distortion are present in real channels.
• Coding, regeneration, and error control are available in digital systems.

Concept / Approach:
Digital links support precise thresholding and regeneration at repeaters, enabling long chains without cumulative noise. Advanced modulation/coding packs more bits per hertz, often yielding higher effective data rates than legacy analog systems, while keeping error rates low.

Step-by-Step Solution:
1) Faster transmission: Digital modulation, compression, and multiplexing (e.g., QAM, OFDM, TDM) enable high bit rates per channel.2) More accurate: Binary decision thresholds plus error detection/correction reduce the impact of moderate noise.3) Therefore, both attributes usually apply to digital signals compared to analog for data networking.

Verification / Alternative check:
Practical systems (Ethernet, fiber links, cellular data) achieve gigabit+ rates with low bit error rates, outperforming analog data carriage.

Why Other Options Are Wrong:
Only faster or only more accurate: Incomplete; both are typical advantages.

All of the above: Includes statements not listed; incorrect distractor.

Neither: Contradicts widespread empirical evidence.

Common Pitfalls:
Assuming “accuracy” means perfect; digital still suffers errors but can keep them acceptably low with coding and proper SNR.

Final Answer:
both (a) and (b)