McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Information Technology Engineering (IT) .
| 1. |
allows us to control electronic components |
| A. | retful api |
| B. | restful api |
| C. | http |
| D. | mqtt |
| Answer» A. retful api | |
| 2. |
MQTT stands for |
| A. | mq telemetry things |
| B. | mq transport telemetry |
| C. | mq transport things |
| D. | mq telemetry transport |
| Answer» D. mq telemetry transport | |
| 3. |
MQTT is better than HTTP for sending and receiving data. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 4. |
MQTT is protocol. |
| A. | machine to machine |
| B. | internet of things |
| C. | machine to machine and internet of things |
| D. | machine things |
| Answer» C. machine to machine and internet of things | |
| 5. |
Which protocol is lightweight? |
| A. | mqtt |
| B. | http |
| C. | coap |
| D. | spi |
| Answer» A. mqtt | |
| 6. |
PubNub publishes and subscribes in order to send and receive messages. |
| A. | network |
| B. | account |
| C. | portal |
| D. | keys |
| Answer» D. keys | |
| 7. |
By clicking which key the PubNub will display public, subscribe, and secret keys. |
| A. | pane |
| B. | demo keyset |
| C. | portal |
| D. | network |
| Answer» B. demo keyset | |
| 8. |
The messageChannel class declares the class attribute that defines the key string. |
| A. | command_key |
| B. | command-key |
| C. | commandkey |
| D. | key_command |
| Answer» A. command_key | |
| 9. |
method saves the received arguments in three attributes. |
| A. | init |
| B. | init |
| C. | init |
| D. | _init_ |
| Answer» C. init | |
| 10. |
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» A. public_key and subscribe_key | |
| 11. |
specifies the function that will be called when there is a new message received from the channel. |
| A. | reconnect |
| B. | error |
| C. | connect |
| D. | callback |
| Answer» D. callback | |
| 12. |
specifies the function that will be called on an error event. |
| A. | callback |
| B. | error |
| C. | connect |
| D. | reconnect |
| Answer» B. error | |
| 13. |
Specifies the function that will be called when a successful connection with the PubNub cloud. |
| A. | callback |
| B. | error |
| C. | connect |
| D. | reconnect |
| Answer» C. connect | |
| 14. |
specifies the function that will be called when a successful re-connection is completed. |
| A. | callback |
| B. | error |
| C. | connect |
| D. | reconnect |
| Answer» D. reconnect | |
| 15. |
specifies the function that will be called when the client disconnects. |
| A. | callback |
| B. | error |
| C. | connect |
| D. | reconnect |
| Answer» D. reconnect | |
| 16. |
The number of elements in the Open IoT Architecture? |
| A. | 6 elements |
| B. | 8 elements |
| C. | 7 elements |
| D. | 3 elements |
| Answer» C. 7 elements | |
| 17. |
Global Sensor Network is built for |
| A. | reducing cost and time for development |
| B. | reducing cost and increasing time for development |
| C. | increasing cost and increasing time for development |
| D. | increasing cost and decreasing time for development |
| Answer» A. reducing cost and time for development | |
| 18. |
One of the main characteristics of Linked Stream Data is “Live Streaming”. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 19. |
The huge number of devices connected to the Internet of Things has to communicate automatically, not via humans. What is this called? |
| A. | skynet |
| B. | bot 2 bot |
| C. | machine 2 machine |
| D. | intercloud |
| Answer» C. machine 2 machine | |
| 20. |
Internet of Things needs a lot of network connection. What is the proposed “white Space” radio standard called? |
| A. | bluetooth |
| B. | wimax |
| C. | weightless |
| D. | zigbee |
| Answer» C. weightless | |
| 21. |
What is the sensor/protocol used in GSN? |
| A. | http protocol |
| B. | coap protocol |
| C. | mqtt protocol |
| D. | xmpp protocol |
| Answer» B. coap protocol | |
| 22. |
Which is the core wrapper of GSN? |
| A. | serial |
| B. | udp |
| C. | gpstest |
| D. | zeromqwrapper |
| Answer» D. zeromqwrapper | |
| 23. |
Open IoT ontology is extending the W3C SSN ontology which supports the description of the physical and processing structure of sensors. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 24. |
Open IoT manages the registration, data acquisition, deployment of sensors and interconnected of objects, through which network? |
| A. | gsn |
| B. | x-gsn |
| C. | lsm |
| D. | http |
| Answer» B. x-gsn | |
| 25. |
Which environment does Global Sensor Network work on? |
| A. | c++ |
| B. | java |
| C. | html |
| D. | c |
| Answer» B. java | |
| 26. |
is a community that is working together to establish an IoT architecture. |
| A. | eclipse iot |
| B. | red hat |
| C. | intercloud |
| D. | bot 2 bot |
| Answer» A. eclipse iot | |
| 27. |
provides a middleware and application container for IoT gateway. |
| A. | eclipse kura |
| B. | red hat |
| C. | intercloud |
| D. | bot 2 bot |
| Answer» A. eclipse kura | |
| 28. |
is a modular and cloud based platform. |
| A. | eclipse kura |
| B. | red hat |
| C. | intercloud |
| D. | eclipse kapua |
| Answer» D. eclipse kapua | |
| 29. |
Kapua also provides a core integration framework. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 30. |
an open source stack for gateways and the edge. |
| A. | eclipse kapua |
| B. | red hat |
| C. | intercloud |
| D. | eclipse kura |
| Answer» D. eclipse kura | |
| 31. |
Gateway provides the connection between and |
| A. | cloud and controller |
| B. | network and cloud |
| C. | network and controller |
| D. | controller and device |
| Answer» A. cloud and controller | |
| 32. |
Sensors provide data per second. |
| A. | hundreds of hundreds of data |
| B. | hundreds of thousands of data |
| C. | tens of hundreds of data |
| D. | tens of thousands of data |
| Answer» D. tens of thousands of data | |
| 33. |
Does IOT gateway provide security for the network. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 34. |
A sensor uses which network? |
| A. | lan and han |
| B. | han and pan |
| C. | lan and pan |
| D. | lan, pan and han |
| Answer» D. lan, pan and han | |
| 35. |
Gateway software should be smart enough to handle |
| A. | gps |
| B. | message |
| C. | logging |
| D. | sensors |
| Answer» C. logging | |
| 36. |
Number of approaches gateway can be installed? |
| A. | 2 approaches |
| B. | 3 approaches |
| C. | 2 approaches |
| D. | 2 approaches |
| Answer» B. 3 approaches | |
| 37. |
Drawback of Factory Bootstrap? |
| A. | it should not have many gateways |
| B. | it should not have many devices |
| C. | complex circuit can’t be handled |
| D. | it should have many gateways |
| Answer» A. it should not have many gateways | |
| 38. |
Central software management server communicates with the gateway devices in which approach? |
| A. | factory bootstrap |
| B. | server limited bootstrap |
| C. | client initiated bootstrap |
| D. | bootstrap |
| Answer» B. server limited bootstrap | |
| 39. |
Which mode assumes that it is the gateway’s responsibility to connect to the central repository server? |
| A. | factory bootstrap |
| B. | server limited bootstrap |
| C. | client initiated bootstrap |
| D. | bootstrap |
| Answer» C. client initiated bootstrap | |
| 40. |
The feature of IoT Gateway is the ability to download updates over-the-air. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 41. |
Hardware address is known as |
| A. | mac address |
| B. | ip address |
| C. | network interface card |
| D. | address resolution protocol |
| Answer» A. mac address | |
| 42. |
MAC stands for |
| A. | media area control |
| B. | memory access control |
| C. | memory area control |
| D. | media access control |
| Answer» D. media access control | |
| 43. |
What translates IP address into MAC address? |
| A. | organizationally unique identifier |
| B. | address resolution protocol |
| C. | network interface card |
| D. | burned in address |
| Answer» C. network interface card | |
| 44. |
Networking Hardware Address is referred with |
| A. | ip address |
| B. | mac address |
| C. | nic |
| D. | organizationally unique identifier |
| Answer» B. mac address | |
| 45. |
Does MAC address contain characters. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 46. |
MAC addresses are very useful in diagnosing network issues. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 47. |
On wireless networks filtering is the security measure. |
| A. | oui |
| B. | ip |
| C. | nic |
| D. | mca |
| Answer» D. mca | |
| 48. |
MAC addresses are used as |
| A. | network addresses |
| B. | ip address |
| C. | hardware address |
| D. | burned in address |
| Answer» A. network addresses | |
| 49. |
IEEE standards for Institute of Electrical and Electronics Engineers. |
| A. | false |
| B. | true |
| Answer» B. true | |
| 50. |
The original IEEE 802 MAC address comes from |
| A. | mac address |
| B. | ip address |
| C. | ethernet address |
| D. | http |
| Answer» C. ethernet address | |
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