EMT Practice Test

1. Question Content...

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Question1: If there is a large transformer near the PLC communication environment, it will cause serious noise interference to its communication.

Question2: OceanConnect provides IoT services to end users

Question3: API application scenarios are divided into two types. Some manufacturers only make sensors and various sensors.
There is a car maker.
Also have a family.
There is also a camera.
This is what we call horizontal ecology.

Question4: Among the following options, what are the advantages of the IoT architecture after using the HuaweiLiteOS operating system?

Question5: When the task is suspended, if the current task is a locked task, it cannot be suspended.

Question6: The Internet of Vehicles refers to cars and cars, cars and roads, cars and people

Question7: In the power industry, using eLTE-loT to highlight the main advantages of AMI remote meter reading is wide coverage, heavy connectivity and easy deployment And expand

Question8: Among the following options, the ones that belong to IoT security are

Question9: The AR502E gateway only supports Zigbe and RF cashless communication interfaces, and does not support RS485 and Ethernet interfaces.

Question10: Voice delivery applications can use NB-IoT communication technology

Question11: Among the following options, which is not a primary energy ()?

Question12: Which of the following descriptions of the error correction coding of eLTE-IoT is wrong?

Question13: Is the () module used in HuaweiLiteOS to receive messages of variable length from tasks or interrupts?

Question14: When the platform receives the terminal message and reports, the codec plugin is responsible for decoding the message into XML format data recognized by the platform.

Question15: Terminal intelligence is the foundation of the development of the Internet of Things. Huawei provides a complete standardized Internet of Things operating system LiteOS to accelerate terminal intelligence

Question16: NB-IoT uses () technology for uplink and downlink respectively?

Question17: Among the following options, what is not the technical feature of NB-JoT?

Question18: In the field of intelligent manufacturing, the use of eLTE-IoT can realize the real-time return of video data on the production site.

Question19: The third-party platform sets the AES encryption parameters of the specified deviceld on the OceanConnect platform, and the subsequent OceanConnect.
The communication between the platform and this vehicle-mounted device requires AES encryption.

Question20: In the hierarchical division of the Internet of Things, which is responsible for information collection and signal processing ()?

Question21: Among the following options, the correct description about smart home video surveillance is

Question22: Among the following options, which does not belong to the advantage of static memory in HuaweiLiteOS memory management is ()?

Question23: AR5O2EGRc-Lc The command to view the online status of all devices is ()?

Question24: HuaweLiteOS interconnect framework provides () protocol stack to realize intercommunication?

Question25: A home gateway manufacturer has become OoeanConneot's ecological partner. On what Portal does it need to create an account for this company?

Question26: Among the following options. What are the hierarchical divisions of the Internet of Things ()? (Multiple choice)

Question27: Which of the following descriptions about the eLTE-Iot integrated base station AirNode is wrong?

Question28: In the hierarchical division of the Internet of Things, does Huawei's OceanConnect act on ()?

Question29: Among the following options, the applications that are suitable for using NB-IoT are ()? (multiple choice)

Question30: Among the following options, the common network features of oMTC and NB-IoT are ()?

Question31: Which of the following belong to the application layer of the Internet of Vehicles ()? (multiple choice)

Question32: The eDRX power saving technology further extends the sleep period of the terminal in idle mode, reduces unnecessary startup of the receiving unit, and greatly improves the downlink reachability compared to psm

Question33: SoftRadio is only used in test scenarios and does not allow access to the customer's existing network and commercial use.

Question34: Combine the use of dynamic memory to sort the following operations;
1. Apply for a memory block in the dynamic memory pool
2. Print out the data stored in the memory block
3. Release this memory
4. Initialize a dynamic memory pool
5. Use this memory block to store a piece of data

Question35: Which of the following options is the AT command for reporting data

Question36: Does NB-loT re-cultivation and deployment of GSM frequency band need to adopt () method?

Question37: Among the following options, which is not the high point of the eLTE4oT solution is ()?

Question38: When the terminal uses the NB-IoT solution to access, what is the protocolType field in the profile file of the platform?

Question39: eMTC can be applied to the Internet of Vehicles and video surveillance scenarios

Question40: Can eLTE-IOT network management manage () network elements? (multiple choice)

Question41: Semaphore is a mechanism to achieve communication between tasks, to achieve synchronization between tasks or mutually exclusive access to critical resources

Question42: What kinds of AT commands are divided into

Question43: MuLti-tone is a necessary function of terminal equipment, while Single-tone is an optional function

Question44: To enhance the Wi-Fi experience, a single ONT centralized Wi-Fi is a trend.

Question45: Does HuaweiLiteOs and the friend community provide () support? (Multiple)

Question46: Elte-loT currently supports frequency bands ()?

Question47: Which vendor is most suitable for operating Huawei's openife solution ()?

Question48: The English name of the Internet of Things is ()?

Question49: The device ID prefix of AR501L1Rc model is ()?

Question50: eLTE-JoT improves transmission efficiency and system capacity through () technology?

Question51: The experimental environment network mainly includes ()? (multiple choice)

Question52: staticUINT32Example_TaskHi(VOID)
{
UNIT32uwRet=LOS_CK;
printf("EnterTaskHihandler.\r\n");
}
Which of the following options has the correct output result?

Question53: Interruption refers to the process in which the CPU suspends the execution of the current program when necessary, and then executes a new program. (judge)

Question54: 1.CityConnectAgileController uses network cable to connect directly through which connection for communication access?

Question55: The key requirements of smart parking are to reduce operating costs, improve the lack of parking spaces, the low utilization rate and the rare situation of parking.
Consider user experience Network cost and network reliability.

Question56: Which of the following options belong to the key business of the home smart gateway? (Multiple choice)

Question57: The security of the Internet of Things is the cornerstone of the Internet of Things and a problem that the Internet of Things must face and solve.

Question58: Which parts of the NB-IoT network can SoftRadio simulate

Question59: The HuaweiLteOSKemel basic kernel contains the following () modules? (multiple choice)

Question60: In the hierarchical division of the Internet of Things, which is responsible for the interaction between the data star and the customer ()?

Question61: What is the main role of Industrial Internet of Things as a convergence device for local networking in providing edge computer capabilities?

Question62: What are the typical application scenarios of IoT gateways? (multiple choice)

Question63: In the Huawei IoT gateway Zigbee and 6LoVPAN technology, the network structure is as follows ()?

Question64: What is the period unit of task scheduling ()?

Question65: In the Huwei LiteOS Kernel framework, which list is the task in the running state?

Question66: Which of the following options is not operated on SPPortal? (Single choice)

Question67: Terminal intelligence is the foundation of the development of the Internet of Things. Huawei provides a complete and standardized Internet of Things operating system LiteOS to accelerate terminal intelligence. (judge)

Question68: Among the following options, what is not the key technical feature of NB-loT?

Question69: Among the following options, the ones that belong to IoT security are

Question70: Among the following options, which network elements belong to the NB-IoT core network?

Question71: What is the programming language used in the example of Keil integrated development environment ()?

Question72: PLC communication technology refers to a communication method that uses power lines to transmit data and media signals. (judge)

Question73: What is the unit for delaying the connection of LOS_TaskDelay() parameters? (Single choice)

Question74: The physical layer technology of Huawei IoT Gateway 6LoWPAN adopts the following () standards?

Question75: Interrupt refers to when the need arises, the CPU suspends the execution of the current program. Switch to the process of executing a new program.

Question76: Is NB-LOT working in () mode the most power-saving?

Question77: Which of the following options is not an advantage of the small packet data fast transmission technology?

Question78: The main application modules of Huawei's power Internet of Things solution include ()? (multiple choice)

Question79: APP scan code need to get () information? (multiple choice)

Question80: In the Huawei smart home ecosystem, equipment suppliers only need to care about the integration of equipment, and application providers only focus on the cloud management service capabilities of the seven major API categories.

Question81: If you are writing to a friend at this time, the phone ringing, you go to answer the phone, and then continue to write after you have answered the phone, the ringing of the phone during this process can be called which function

Question82: Among the following options, the one that does not belong to N in the HuaweLteOS1+N architecture is ()?

Question83: Among the following options, the advantages of the Huawei LiteOS operating system kernel are

Question84: In wired communication, the biggest difference between RS485 and RS232 is that RS485 supports-to-many communication, while RS232 can only support one-to-one communication.

Question85: Smart home leader. Smart ONT can also be extended based on USB Dongle, providing Zig-bye/Z-wane And other basic swap-in capabilities of the Internet of Things. By accessing the standard system, it will be able to inherit smart devices from different manufacturers.

Question86: eLTE-IoT improves anti-interference ability through () technology?

Question87: The main function of gateway access authentication is to authenticate the identity of the gateway to prevent unauthorized access by unauthorized devices.

Question88: Among the following options, please select the meaning of "2" in Huawei 1+2+1" architecture

Question89: What are the main sensors used in the outdoor smart parking vehicle detector ()?

Question90: eLTE-loT is used as a power AMI meter reading scenario, and each cell can support up to () meter access?

Question91: The naming format of the zip package of the device profile is as follows ()?

Question92: Regarding the features of the OceanConnect platform, what is the following that does not belong to authority management ()?

Question93: What is the first step of the OceanConnect business process ()?

Question94: Ladder water price requirement-one meter per household is one of the important driving forces for water companies to develop smart meter reading.

Question95: The following () company can become OceanConnect's ecological partner? (multiple choice)

Question96: Among the following options, the description of the development of the home network is wrong ()

Question97: The meter reading protocols mainly used in Huawei's power Internet of Things solution include ()? (multiple choice)

Question98: Does the Huawei LiteOS security framework contain () part? (multiple choice)

Question99: HuaweiLiteOS interconnect swing frame optimizes Mesh ad hoc network. The features do not include the following ()?

Question100: AMI is a complete system including smart meters, advanced communication networks, collectors and concentrators, and background software. It can use a two-way communication system to record user detailed load information