Recent questions tagged internet-of-things

Description : Which is the part of Data Link Layer: a. LLC b. MAC c. Both a and b d. None of these

Last Answer : c. Both a and b

Description : Which IEEE standard is developed for CSMA/CD a. IEEE 802.1 b. IEEE 802.2 c. IEEE 802.3 d. IEEE 802.4

Last Answer : c. IEEE 802.3

Description : Which multiple access technique is used by IEEE 802.11 standard for wireless LAN? a. ALOHA b. CSMA/CA c. CDMA d. none of the mentioned

Last Answer : b. CSMA/CA

Description : MQTT is: a. Based on client-server architecture b. Based on publish-subscribe architecture c. Based on both of the above d. Based on none of the above

Last Answer : b. Based on publish-subscribe architecture

Description : HTTP resources are located by a. unique resource locator b. unique resource identifier c. none of the mentioned d. uniform resource identifier

Last Answer : d. uniform resource identifier

Description : .Frequency band used by 802.11 ah standard is: a. 60 GHz b. 2.4 GHz c. Sub 1 GHz d. 5 GHz

Last Answer : c. Sub 1 GHz

Description : Which layer is called a port layer in OSI model? a. Session b. Application c. Presentation d. Transport

Last Answer : a. Session

Description : Which transport layer protocols is used by DHCP? a. RSVP b. TCP c. DCCP d. UDP

Last Answer : d. UDP

Description : Which one out of these is not a data link layer technology: a. Bluetooth b. UART c. WIFI d. HTTP

Last Answer : d. HTTP

Description : ____ sensor measure heat emitted by objects. A. Smoke Sensor B. Temperature Sensor C. IR Sensor D. Proximity Sensor

Last Answer : C. IR Sensor 

Description : ____ sensor is used for automatic door controls, automatic parking system, automated sinks, automated toilet flushers, hand dryers. A. Smoke Sensor B. Temperature Sensor C. IR Sensor D. Motion Sensor

Last Answer : D. Motion Sensor 

Description : The measurement of humidity is A. RH B. PH C. IC D. None of aboved

Last Answer : A. RH 

Description : ___ sensors include thermocouples, thermistors, resistor temperature detectors (RTDs) and integratd circuits (ICs). A. Smoke Sensor B. Temperature Sensor C. IR Sensor D. Proximity Sensor

Last Answer : B. Temperature Sensor 

Description : ____detect the presence or absence of nearby object without any physical contact. A. Smoke Sensor B. Pressure Sensor C. IR Sensor D. Proximity Sensor

Last Answer : D. Proximity Sensor 

Description : ____ is used latching, locking, triggering. A. Solenoid B. Relay C. Linear Actuator D. Servo motors

Last Answer : A. Solenoid 

Description :  ___ is an open source electronic platform based on easy to used hardware and software. A. Arduino B. Uno C. Raspberry Pi D. Node

Last Answer : A. Arduino 

Description : What is the microcontroller used in Arduino UNO? A. ATmega328p B. ATmega2560 C. ATmega32114 D. AT91SAM3x8E

Last Answer : A. ATmega328p 

Description : IoT devices are ____ A. Standard B. Non-standard C. Both D. None 

Last Answer : B. Non-standard 

Description : Properties of IoT devices. A. Sense B. Send and receive data C. Both A and B D. None of above

Last Answer : C. Both A and B  

Description : Properties of Arduino are: A. Inexpensive B. Independent C. Simple D. both A and C

Last Answer : D. both A and C 

Description : Gas sensors are used to detect _____gases. A. Toxic B. Natural C. Oxygen D. Hydrogen

Last Answer : A. Toxic  

Description :  Image sensors are found in_______ A. Cameras B. Night-vision equipment C. Sonars D. All of above

Last Answer : D. All of above 

Description : Accelerometer sensors are used in______ A. Smartphones B. Aircrafts C. Both D. None of above

Last Answer : C. Both 

Description : Solenoid is a specially designed ________ A. Actuator B. Machine C. Electromagnet D. none of above

Last Answer : C. Electromagnet  

Description : Linear actuators are used in________ A. Machine tools B. Industrial machinery C.both A and B D.None 

Last Answer : A. Machine tools 

Description : DC motors converts electrical into ___ energy. A. Mechanical B. Wind C. Electric D. None

Last Answer : A. Mechanical  

Description : Stepper motors are_____ A. AC motors B. DC motors C. Electromagnets D. None of above

Last Answer : B. DC motors

Description : Devices that transforms electrical signals into physical movements A. Sensors B. Actuators C. Switches D. Display

Last Answer : B. Actuators 

Description :  ________ in IoT as one of the key characteristics, devices have different hardware platforms and networks. A. Sensors B. Heterogeneity C. Security D. Connectivity

Last Answer : B. Heterogeneity 

Description : The number of devices that need to be managed and that communicate with each other will be much larger. A. Intelligence B. Connectivity C. Dynamic Nature D. Enormous Scale

Last Answer : D. Enormous Scale 

Description : The collection of data is achieved with ________ changes. A. Intelligence B. Connectivity C. Dynamic Nature D. Enormous Scale

Last Answer : C. Dynamic Nature 

Description :  ________ empowers IoT by bringing together everyday objects. A. Intelligence B. Connectivity C. Dynamic Nature D. Enormous Scale

Last Answer : B. Connectivity 

Description : Which characteristics involve the facility the thing to respond in an intelligent way to a particular situation? A. Intelligence B. Connectivity C. Dynamic Nature D. Enormous Scale 

Last Answer : A. Intelligence 

Description : Does micro SD card present in all modules? A. True B. False

Last Answer : A. True 

Description : Which instruction set architecture is used in Raspberry Pi? A. X86 B. MSP C. AVR D. ARM

Last Answer : D. ARM 

Description : What is the Ethernet/LAN cable used in RPi? A.Cat5 B.at5e C. cat6 D . RJ45

Last Answer : D . RJ45 

Description : How power supply is done to RPi? A. USB connection B. Internal battery C. Charger D. Adapter

Last Answer : A. USB connection 

Description : What do we use to connect TV to RPi? A. Male HDMI B. Female HDMI C. Male HDMI and Adapter D. Female HDMI and Adapter

Last Answer : C. Male HDMI and Adapter 

Description : Does RPi have an internal memory? A. True B. False

Last Answer : A. True 

Description : Does Raspberry Pi need external hardware? A. True B. False

Last Answer : B. False 

Description : The process of collecting, organizing and collecting large sets of data called as A. WSN B. Cloud Computing C. Big Data D. None of above

Last Answer : C. Big Data 

Description : ____ is a transformative computing paradigm that involves delivering applications and services over the internet. A. WSN B. Cloud Computing C. Big Data D. None of above

Last Answer : B. Cloud Computing 

Description : Zigbee specification are based on ______. A. 802.3 B. 802.11 C. 802.16 D. 802.15.4

Last Answer : D. 802.15.4 

Description : ____ is a one of the most popular wireless technologies used by WSNs. A. Zigbee B. AllSean C. Tyrell D. Z-Wave

Last Answer : A. Zigbee 

Description :  _____ is suitable for IOT applications to have low latency or high throughput requirements. A. REST B. Publish-Subscriber C. Push-Pull D. WebSocket

Last Answer : D. WebSocket 

Description : _________ is the most refined and restrictive service model. A. IaaS B. CaaS C. PaaS D. All of the mentioned

Last Answer : C. PaaS 

Description : ______ offering provides the tools and development environment to deploy applications on another vendor’s application. A. PaaS B. IaaS C. CaaS D. All of the mentioned

Last Answer : B. IaaS 

Description : Which of the following is the fundamental unit of virtualized client in an IaaS deployment? a) workunit b) workspace c) workload d) all of the mentioned

Last Answer : c) workload 

Description :  _________ is a cloud computing service model in which hardware is virtualized in the cloud. A. IaaS B. CaaS C. PaaS D. None of the mentioned

Last Answer : A. IaaS 

Description :  _________ as a Service is a cloud computing infrastructure that creates a development environment upon which applications may be build. A. Infrastructure B. Service C. Platform D. All of the mentioned

Last Answer : C. Platform