UPSC CSE Prelims
Question 32
With reference to communication technologies, what is/are the difference/differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)?
- LTE is commonly marketed as 3G and VoLTE is commonly marketed as advanced 3G.
- LTE is data-only technology and VoLTE is voice-only technology.
Select the correct answer using the code given below.
View correct answer and explanation
Correct answer: D
Correct Option: D
Explanation:
LTE is a 4G mobile broadband network standard, while VoLTE carries phone calls as packets over LTE. Neither the alleged 3G labels nor the claim that LTE is data-only and VoLTE voice-only accurately describes them.
Statement / Pair Analysis:
1 (Incorrect): LTE is marketed as 4G, not 3G; VoLTE is voice service over 4G/LTE.
2 (Incorrect): LTE carries packet data that can include voice, and VoLTE users retain ordinary data services.
Option-wise Analysis:
A (Incorrect): It includes false item 1 (LTE is marketed as 4G, not 3G; VoLTE is voice service over 4G/LTE).
B (Incorrect): It includes false item 2 (LTE carries packet data that can include voice, and VoLTE users retain ordinary data services).
C (Incorrect): It includes false item 1 (LTE is marketed as 4G, not 3G; VoLTE is voice service over 4G/LTE); includes false item 2 (LTE carries packet data that can include voice, and VoLTE users retain ordinary data services).
D (Correct): All listed statements/pairs are false.