MCQOPTIONS
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MCQOPTIONS
This section includes 61 Mcqs, each offering curated multiple-choice questions to sharpen your Internet of things (IoT) knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
MQTT stands for _____________ |
| A. | MQ Telemetry Things |
| B. | MQ Transport Telemetry |
| C. | MQ Transport Things |
| D. | MQ Telemetry Transport |
| Answer» E. | |
| 2. |
_________ and _________ saves the publish and subscribe keys that we have generated with the PubNub Admin portal. |
| A. | public_key and subscribe_key |
| B. | Public-key and subscribe-key |
| C. | publickey and subscribekey |
| D. | Key_public and key_subscribe |
| Answer» B. Public-key and subscribe-key | |
| 3. |
By clicking which key the PubNub will display public, subscribe, and secret keys. |
| A. | Pane |
| B. | Demo Keyset |
| C. | Portal |
| D. | Network |
| Answer» C. Portal | |
| 4. |
The messageChannel class declares the _________ class attribute that defines the key string. |
| A. | command_key |
| B. | command-key |
| C. | commandkey |
| D. | Key_command |
| Answer» B. command-key | |
| 5. |
Which service provides the lifecycle status of a given IoT service? |
| A. | Enable from suspension |
| B. | Enable |
| C. | Update |
| D. | Registered service status |
| Answer» E. | |
| 6. |
When you publish a message ________ is automatically created? |
| A. | Client |
| B. | Server |
| C. | Batch |
| D. | Server |
| Answer» D. Server | |
| 7. |
Which service permits the changes to the IoT services? |
| A. | Enable from suspension |
| B. | Enable |
| C. | Update |
| D. | Registered service status |
| Answer» D. Registered service status | |
| 8. |
PubNub publishes and subscribes _________ in order to send and receive messages. |
| A. | Network |
| B. | Account |
| C. | Portal |
| D. | Keys |
| Answer» E. | |
| 9. |
_________ allows us to control electronic components |
| A. | RETful API |
| B. | RESTful API |
| C. | HTTP |
| D. | MQTT |
| Answer» B. RESTful API | |
| 10. |
What is the time elapsed after a batch is created? |
| A. | 0.5 seconds |
| B. | 0.05 seconds |
| C. | 1.5 seconds |
| D. | 1 second |
| Answer» C. 1.5 seconds | |
| 11. |
Dash supports static images. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 12. |
________ uses a clean interface to provide data. |
| A. | Dashzen |
| B. | Ducksboard |
| C. | Klipfolio |
| D. | Dash |
| Answer» E. | |
| 13. |
_________ specifies the function that will be called on an error event. |
| A. | Callback |
| B. | Error |
| C. | Connect |
| D. | Reconnect |
| Answer» C. Connect | |
| 14. |
GUID full form is ___________ |
| A. | Global Unique Identifier |
| B. | Global User Identifier |
| C. | Gradual User Identifier |
| D. | Gradual Unique Identifier |
| Answer» B. Global User Identifier | |
| 15. |
Which command displays messages published to a topic? |
| A. | rostopic bw |
| B. | rostopic delay |
| C. | rostopic echo |
| D. | rostopic hz |
| Answer» D. rostopic hz | |
| 16. |
dweet.io provides __________ to send data from IoT devices. |
| A. | JSON |
| B. | HTTP |
| C. | Web API |
| D. | POST HTTP |
| Answer» D. POST HTTP | |
| 17. |
Dweepy is a simple python client for dweet.io. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 18. |
What utility of dweet.io allows publishing data? |
| A. | Data sharing |
| B. | Publishing data |
| C. | Storage |
| D. | Alerting devices |
| Answer» B. Publishing data | |
| 19. |
The visual view displays what? |
| A. | Pie graph |
| B. | Bar graph |
| C. | Line graph |
| D. | Histograms |
| Answer» D. Histograms | |
| 20. |
________ error will show if we try to send text string instead of bytes. |
| A. | TypeError |
| B. | Error |
| C. | Linker error |
| D. | Compiler error |
| Answer» B. Error | |
| 21. |
_________ method saves the received arguments in three attributes. |
| A. | __Init |
| B. | Init__ |
| C. | __Init__ |
| D. | _init_ |
| Answer» D. _init_ | |
| 22. |
__________ performs two functions toward the delivery of the services. |
| A. | Global Scheduler |
| B. | Local Scheduler |
| C. | Device Scheduler |
| D. | IoT Scheduler |
| Answer» B. Local Scheduler | |
| 23. |
Who will do actions if it is needed? |
| A. | Fog node |
| B. | Fog computing |
| C. | Devices |
| D. | Controller |
| Answer» C. Devices | |
| 24. |
rostopic delay will provide delay for ___________ |
| A. | Topics which has header |
| B. | Topics which has tail |
| C. | Topics which has tail and head |
| D. | To all topics |
| Answer» B. Topics which has tail | |
| 25. |
The processing of publishing data is called as __________ |
| A. | Yocto |
| B. | Thing |
| C. | Dweepy |
| D. | Dweeting |
| Answer» E. | |
| 26. |
_________ specifies the function that will be called when a successful re-connection is completed. |
| A. | Callback |
| B. | Error |
| C. | Connect |
| D. | Reconnect |
| Answer» E. | |
| 27. |
When the batch is created, it begins a countdown that publishes the batch once sufficient time has elapsed. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 28. |
A commercial building may contain mainly _______ component. |
| A. | Memory |
| B. | Fog node |
| C. | Cloud nodes |
| D. | Sensors |
| Answer» E. | |
| 29. |
MQTT is better than HTTP for sending and receiving data. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 30. |
Publishing messages is handled through ________ Class. |
| A. | Client() |
| B. | Server() |
| C. | Publish() |
| D. | Batch() |
| Answer» B. Server() | |
| 31. |
____________ Computing is the extension of cloud computing. |
| A. | Mobile cloud computing |
| B. | Mist computing |
| C. | Fog computing |
| D. | Cloud computing |
| Answer» D. Cloud computing | |
| 32. |
Does fog support IoT concepts? |
| A. | Yes |
| B. | No |
| C. | Can't say |
| D. | None of these |
| Answer» B. No | |
| 33. |
____________ practice of using a network of remote servers hosted on the Internet of store. |
| A. | Mist Computing |
| B. | Fog computing |
| C. | Cloud computing |
| D. | Mobile cloud computing |
| Answer» D. Mobile cloud computing | |
| 34. |
________ Command is used to retrieve the latest dweet made for our thing. |
| A. | HTTP |
| B. | HTTPie |
| C. | cURL |
| D. | RESTful API |
| Answer» C. cURL | |
| 35. |
AIDC stands for ____________ |
| A. | Automated Identification Data Carriers |
| B. | Automobile Identification Data Carriers |
| C. | Automated Identification Data Computing |
| D. | Automated Identification Device Carriers |
| Answer» B. Automobile Identification Data Carriers | |
| 36. |
dweet.io is similar as __________ |
| A. | GIUD |
| B. | Insta |
| C. | Web api |
| D. | |
| Answer» E. | |
| 37. |
Which computing can be heavy weight and dense form of computing power? |
| A. | Mobile Cloud computing |
| B. | Fog computing |
| C. | Mist computing |
| D. | Cloud computing |
| Answer» E. | |
| 38. |
A time series with ambient humidity observations expressed in ___________ |
| A. | Degree Fahrenheit |
| B. | Degree Celsius |
| C. | Percentage |
| D. | Fahrenheit |
| Answer» D. Fahrenheit | |
| 39. |
A series of values captured from the sensor is _________ |
| A. | Actuator |
| B. | Time series |
| C. | API |
| D. | UI |
| Answer» C. API | |
| 40. |
A time series with ambient temperature observations expressed in _________ |
| A. | Degrees Fahrenheit |
| B. | Degrees Celsius |
| C. | Percentage |
| D. | Fahrenheit |
| Answer» B. Degrees Celsius | |
| 41. |
_________ setting that can be modified on a device. |
| A. | Actuator |
| B. | Time Series |
| C. | API |
| D. | UI |
| Answer» B. Time Series | |
| 42. |
Resource management includes ___________ |
| A. | IoT Devices |
| B. | IoT Cloud |
| C. | IoT Networks |
| D. | IoT Web |
| Answer» C. IoT Networks | |
| 43. |
What is the role of communication protocol in IoT? |
| A. | Smart cities |
| B. | Cyber physical system |
| C. | Mac layer issue |
| D. | Managing energy |
| Answer» D. Managing energy | |
| 44. |
Which of the following is the future application of IoT? |
| A. | Role of green IoT system |
| B. | QoS in communication |
| C. | Secure communication |
| D. | Multimedia communication |
| Answer» B. QoS in communication | |
| 45. |
What do we call string in python 2? |
| A. | Str |
| B. | Unicode |
| C. | Strs |
| D. | Unicades |
| Answer» C. Strs | |
| 46. |
The embedded devices will form _______ network. |
| A. | ATM |
| B. | Ethernet |
| C. | FDDI |
| D. | Ad-hoc |
| Answer» E. | |
| 47. |
_________ service enables the previously suspended services. |
| A. | Enable from suspension |
| B. | Enable |
| C. | Update |
| D. | Registered service status |
| Answer» B. Enable | |
| 48. |
Which command finds out the topic? |
| A. | rostopic bw |
| B. | rostopic delay |
| C. | rostopic echo |
| D. | rostopic find |
| Answer» E. | |
| 49. |
Building automation demonstrates the need for _______ |
| A. | Edge intelligence |
| B. | Sensors |
| C. | Control function |
| D. | Local operations |
| Answer» B. Sensors | |
| 50. |
MQTT is _________ protocol. |
| A. | Machine to Machine |
| B. | Internet of Things |
| C. | Machine to Machine and Internet of Things |
| D. | Machine Things |
| Answer» D. Machine Things | |