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
Correct answer
Explanation
The correct answer is D, Neither 1 nor 2. Neither statement describes the real difference between the two. LTE is a fourth-generation mobile broadband standard and is sold to customers as 4G, not 3G. VoLTE is not a separate network at all: it is a way of carrying voice calls as data packets over that same LTE network, using the IP Multimedia Subsystem, instead of falling back to older 2G or 3G networks for calls. So statement 1 is wrong because LTE is marketed as 4G and VoLTE as HD voice on 4G, never as advanced 3G. Statement 2 is wrong because VoLTE runs over a data network and the phone can use the internet during a VoLTE call; it is not a voice-only technology. The benefits of VoLTE are clearer calls, faster call set-up and simultaneous voice and data. Option A is wrong because statement 1 is false. Option B is wrong because statement 2 is false. Option C is wrong because both statements are false. Exam tip: LTE is 4G data; VoLTE is voice sent as data over that 4G network.
Practice Questions
View allWhat are the uses of software ports ? 1. Connect client computer to server 2. Connect external devices to computer 3. Identify different services like email, file transfer 4. Connecting peripherals like cameras, scanners Select the answer using the code given below :
- A.1 and 2
- B.1 and 3
- C.2 and 3
- D.2 and 4
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A software port is a logical number, not a physical socket, so it is used for network connections and for telling services apart.
Read the full explanation →1 gigabyte in binary system is equivalent to
- A.1000 kilobytes
- B.1024 megabytes
- C.1200 megabytes
- D.10000 kilobytes
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In the binary system every step up the ladder of memory units is a factor of 2 raised to 10, that is 1024, so one gigabyte holds 1024 megabytes.
Read the full explanation →Consider the following:
1. Small memory
2. Less expensive memory
3. Fast memory
Which of the above are the characteristics of the cache memory?
- A.1 and 2 only
- B.2 and 3 only
- C.1 and 3 only
- D.1, 2 and 3
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Cache memory is small and very fast, but it is the most expensive memory per byte after the CPU registers, so statement 2 is wrong.
Read the full explanation →What is the correct term used for a set of wires used to connect different internal components of the computer system for the purpose of transferring data as well as addresses amongst them?
- A.Hub
- B.Port
- C.Router
- D.Bus
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A bus is the shared set of electrical lines on the motherboard that carries data, addresses and control signals between the CPU, memory and input-output devices.
Read the full explanation →Which one of the following is an application of Artificial Intelligence?
- A.Database management system
- B.Operating system
- C.Natural language processing
- D.Register
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NLP is the branch of artificial intelligence that lets computers understand, interpret and produce human language. Artificial intelligence covers systems that perform tasks normally needing human intelligence, such as learning, reasoning and understanding speech or text.
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