The capabilities of cellular networks have improved greatly since theiroriginal development for analogvoice phone calls. Most recently, fourth-generation (4G) wireless supports a variety of…

Question

Options

• AUse spread-spectrum technology to ensure high transmission rates.
• BProvide fast transmission rates equivalent to DSL or broadband-cable.
• CProvide fast transmission rates equivalent to high-speed dial-up connections.
• DEnable bandwidth throttling, allowing the user access to unrestricted download speeds.

• A
  2% (1)
• B
  94% (48)
• C
  4% (2)

Explanation

4G networks are designed to deliver broadband-level speeds, achieving transmission rates comparable to DSL or broadband cable connections (typically 10–100+ Mbps), which is what makes option B correct - this was the defining leap from 3G's slower data rates.

Option A is wrong because spread-spectrum technology is not exclusive to 4G; it has been used since earlier wireless generations (including 3G/CDMA), so it doesn't distinguish 4G's capabilities. Option C is wrong because high-speed dial-up (56 Kbps) is far slower than 4G - that comparison would more loosely describe early 2G/2.5G data speeds. Option D is wrong because bandwidth throttling is actually a limitation carriers impose on users, not a benefit - and 4G does not inherently provide unrestricted download speeds.

Memory tip: Think of 4G as the generation that brought the home internet experience to mobile - when 4G launched, the marketing pitch was "fast as your home broadband," which maps directly to DSL/cable equivalence in option B.

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