Computer Knowledge

Mobile Telecommunications Networks

2,143 Questions

Mobile telecommunications networks focus on cellular technologies including 5G architecture and GSM components. Key areas of study include network function virtualization, software defined networking, and beamforming. This topic is crucial for technical exams testing computer and networking awareness.

5G architecture componentsNetwork function virtualizationMassive MIMO technologyGSM network registersBeamforming and CSI

Mobile Telecommunications Networks Questions

Multiple choice

What is the term used to describe the interface between the RU and the DU in 5G?

  1. F1 interface

  2. E1 interface

  3. N1 interface

  4. X2 interface
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The E1 interface is used to connect the RU and the DU in 5G.

Multiple choice

Which of the following is NOT a benefit of using a distributed DU architecture in 5G?

  1. Reduced latency

  2. Increased capacity

  3. Improved coverage

  4. Increased complexity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Increased complexity is not a benefit of using a distributed DU architecture in 5G.

Multiple choice

Which of the following is NOT a function of the CU in 5G architecture?

  1. Radio resource management

  2. Mobility management

  3. Packet processing

  4. User plane data forwarding
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

User plane data forwarding is not a function of the CU in 5G architecture.

Multiple choice

What is the term used to describe the interface between the DU and the CN in 5G?

  1. F1 interface

  2. E1 interface

  3. N1 interface

  4. X2 interface
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The X2 interface is used to connect the DU and the CN in 5G.

Multiple choice

Which of the following is NOT a type of DU in 5G?

  1. Centralized DU

  2. Distributed DU

  3. Hybrid DU

  4. Virtualized DU
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Centralized DU is not a type of DU in 5G.

Multiple choice

What is the term used to describe the interface between the RU and the CN in 5G?

  1. F1 interface

  2. E1 interface

  3. N1 interface

  4. X2 interface
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

There is no direct interface between the RU and the CN in 5G.

Multiple choice

Which of the following is NOT a benefit of using a centralized DU architecture in 5G?

  1. Reduced latency

  2. Increased capacity

  3. Improved coverage

  4. Reduced complexity
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Reduced latency is not a benefit of using a centralized DU architecture in 5G.

Multiple choice

What is the purpose of the IEEE 802.1Q standard in IaaS?

  1. Defining virtual LANs (VLANs)

  2. Ensuring network security

  3. Managing network traffic

  4. Providing fault tolerance
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

IEEE 802.1Q defines the standard for virtual LANs (VLANs), which are used to segment IaaS networks into logical subnetworks.

Multiple choice

How does the use of 5G technology enhance the fan experience at major sporting events?

  1. It provides faster and more reliable internet connectivity for fans.

  2. It enables the use of AR and VR technologies for immersive fan experiences.

  3. It allows fans to access real-time statistics and information during the event.

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

5G technology at major sporting events provides faster and more reliable internet connectivity for fans, enables the use of AR and VR technologies for immersive fan experiences, and allows fans to access real-time statistics and information during the event.

Multiple choice

Which pricing model is suitable for applications that require access to a large amount of network bandwidth?

  1. Subscription-based pricing

  2. Pay-as-you-go pricing

  3. Usage-based pricing

  4. Network pricing
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Network pricing is a pricing model where customers pay a fee based on the amount of network bandwidth they use.

Multiple choice

Which of the following is NOT a common cause of mobile device connectivity issues?

  1. Weak signal strength

  2. Outdated software

  3. Damaged antenna

  4. Overheating
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Overheating is not a common cause of mobile device connectivity issues. Weak signal strength, outdated software, and damaged antenna are more common causes.

Multiple choice

What is the purpose of a guard interval in an OFDM system?

  1. To prevent inter-symbol interference

  2. To reduce the bandwidth required for transmission

  3. To improve the signal-to-noise ratio

  4. To enable multiplexing of multiple signals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A guard interval in an OFDM system is used to prevent inter-symbol interference caused by the overlapping of adjacent symbols.

Multiple choice

Which modulation technique is used in 5G NR?

  1. OFDM

  2. QAM

  3. SC-FDMA

  4. GFDM
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

OFDM (Orthogonal Frequency Division Multiplexing) is the modulation technique used in 5G NR. It divides the available bandwidth into a large number of narrow subcarriers, which are modulated independently.

Multiple choice

What is the maximum number of subcarriers that can be used in 5G NR?

  1. 128

  2. 256

  3. 512

  4. 1024
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The maximum number of subcarriers that can be used in 5G NR is 1024.

Multiple choice

Which coding scheme is used in 5G NR?

  1. Polar codes

  2. LDPC codes

  3. Turbo codes

  4. BCH codes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Polar codes are the coding scheme used in 5G NR. They are a type of channel code that can achieve the capacity of a channel with low decoding complexity.