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UPSC Prelims 2019 Paper-1 📅 02 Jun, 2019

With reference to communication technologies, what is/are the difference/differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)?
1. LTE is commonly marketed as 3G and VoLTE is commonly marketed as advanced 3G.
2. LTE is data-only technology and VoLTE is voice-only technology.

Select the correct answer using the code given below.

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
Result Summary
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UPSC Prelims
2019 • 02 Jun, 2019 • Paper-1
With reference to communication technologies, what is/are the difference/differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)?
1. LTE is commonly marketed as 3G and VoLTE is commonly marketed as advanced 3G.
2. LTE is data-only technology and VoLTE is voice-only technology.

Select the correct answer using the code given below.
Correct Answer
Neither 1 nor 2
Statement 1 Analysis: This is entirely incorrect. LTE is universally recognized and marketed as standard 4G (Fourth Generation) technology, not 3G. VoLTE is ess......
Ref/Book : UPSC Prelims 2019
Ref. Subject Science and Technology
Chapter -
Ref. Topic Communication Technologies
Pg. No -
💡 Analysis & Explanation
Statement 1 Analysis ▼
This is entirely incorrect. LTE is universally recognized and marketed as standard 4G (Fourth Generation) technology, not 3G. VoLTE is essentially a technology enhancement over LTE that allows voice calls to be transmitted over the 4G data network.
Statement 2 Analysis ▼
This is also incorrect. While traditional LTE initially handled data (while voice calls had to circuit-switch down to legacy 2G/3G networks), it evolved beyond being 'data-only'. More critically, VoLTE is definitely not 'voice-only'; its very definition is carrying both high-speed internet data and high-definition voice calls simultaneously over the exact same IP network.
Conclusion ▼
Both statements severely misrepresent fundamental telecommunication standards.
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