Which of the following is somewhat wrong about D2D technology? (single-choice question, 2 points)

• A.High peak rate
• B.Small transmission delay
• C.High spectral efficiency
• D.Long transmission distance

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Which of the following is the highest modulation order as defined by 3GPP release 15? _SC

• A.256QAM
• B.64QAM
• C.16QAM
• D.1024QAM

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Compared with 4G networks, which of the following services can be better supported by 5G that supports higher rates? (Multiple choice, 10 points)

• A.Internet of Vehicles
• B.4K and 8K HD video
• C.Virtual Reality VR
• D.Augmented Reality AR

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Which of the following are correct in the description of the security requirements of 5G? (Multiple choice, 2 points)

• A.5G user permanent identity encryption
• B.5G uses 256-bit encryption algorithm
• C.It can realize end-to-end security protection between PLMNs
• D.Air interface user plane integrity protection

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Which of the following NSA networking statements are correct? _MC

• A.Capable of provisioning new services such as URLLC
• B.LOW Investment in the initial phase of 5G deployment
• C.Requiring continuous coverage provided by the 5G base solutions
• D.Deployment based on legacy 4G networks

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