Can an eLTE-loT network administrator manage () network elements? (Multiple choice)

• A.CPE (User Access Terminal)
• B.loT module
• C.Business Engine
• D.loT integrated base station .

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Among the following options, which network elements belong to the NB-IoT core network?

• A.HSS
• B.PGW
• C.SGW
• D.MME

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The southbound device sends an AT command to SoftRadio through the serial port, and the result is that SoftRadio does not have any information prompt, possible reasons are ()? (Multiple choice).

• A.SoftRadio received an unrecognizA, Ble AT command
• B.All of the A, Bove are possible
• C.There is a problem with the connection of the southbound device to the PC, SoftRadio does not receive the data .
• D.The AT command sent does not end with /r/n

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Semaphore is a mechanism to achieve communication between tasks, to achieve synchronization between tasks or mutually exclusive access to critical resources

• A.False
• B.True

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A home gateway manufacturer has become OoeanConneot's ecological partner. On what Portal does it need to create an account for this company?

• A.SPPORTAL
• B.OperationPortal
• C.OSS business Portal
• D.OSS Management PORTAL

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