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WorksheetsIoT
Total questions: 100
Worksheet time: 32mins
Internet of things can be integrated with which of these separate domains?
Cloud-based storage and computing
Cyber-Physical Systems
Big-data networks
All the above
Which of the following is true?
IoT is a subset of M2M
M2M is a subset of IoT
IoT is a subset of CPS
CPS is a subset of Web of Things(WoT)
IoT proxy operates in
Application Layer
Network Layer
MAC Layer
Physical Layer
Which one of these is the first technology in the chronological order of the evolution of IoT?
ATM
Web
Smart City
Smart Healthcare
The protocol IKEv2 stands for
Information Key Exchange version 2
Internet Key Exchange version 2
Internet Key Exclusion version 2
Inter-key Exclusion version 2
The phenomenon of the output signal slowly changing, independent of the measured property is called:
Aliasing
Drift
Hysteresis
None of the above
Which of these statements regarding sensors are TRUE?
Sensors are input devices
Sensors can be analog or digital
Sensors respond to some external stimuli
All the above
Light activated Polymers (LAP) are a special type of
Light dependent resistors
Shape memory polymers
Solar cells
None of these
Which of these is a part of the Sensing Layer of the IoT Service Oriented Architecture?
Service integration
Service repository
Business Logic
Data sensing and actuation protocols
A DC motor is a type of:
Pneumatic actuators
Hydraulic actuators
Electrical Actuators
Mechanical Actuator
Which of the following controls the publish-subscribe messaging pattern in MQTT?
MQTT broker
MQTT Client
MQTT Server
None of these
AMQP (Adv Message Queuing Protocol) is designed for connecting
Constrained networks
LAN's and WAN's
Systems and Business process
None of these
The MQTT publish-subscribe protocol is:
Event Driven
Broker Driven
Client Driven
All of these
REST stands for
Representational State Transfer
Resourceful Sensor Transfer
Resourceful State Transport
None of these
Which of them is TRUE for XMPP?
It is decentralised
It supports interoperability
It does not guarantee QoS
All of these
Which of these is a routing protocol for low power lossy networks over IPv6?
RPL
OSPF
Both a & b
None of these
In Adv Msg Queuing Protocol (AMQP), link initiation in order to send and receive messages is done by which frame type?
OPEN
ATTACH
BEGIN
FLOW
RPL (Routing Power for Low power and Lossy Networks) supports :
Message confidentiality
Loop detection in the routes
Data path validation
All the above
Which statement is TRUE with respect to 802.15.4 standard?
It is low data rate standard
Used for architecting wireless PAN's
Uses ONLY two layers - PHY & MAC
All the above
In the network layer, Zigbee follows which routing scheme?
AODV
DSDV
RIPv2
OSPF
The HART protocol was designed for
Home Automation Networking
Networked Smart Field Devices
Vehicular Networking
All the above
Channel hopping is performed at which HART layer?
Physical
Data Link
Network
Application
Which of these is NOT a NFC mode of communication?
Peer-to-peer
Read/Write
Card Emulation
Beacon
Bluetooth is a technology with
Full duplex links
Half duplex links
Both a & b
None of these
The PHY and MAC Layers in ISA 100.11A are based upon:
IEEE 802.11a
IEEE 802.15.4
IEEE 802.15.6
IEEE 802.11g
The modulation scheme followed by Z-wave is:
BPSK
QPSK
GFSK
O-QSK
Which of these is NOT part of sensor web?
Observations and Measurements (O&M)
Energy Effeciency
Sensor Model language (sensorml)
Transducer Model language (TML)
Which topology is supported by Z-wave?
Star
Mesh
Tree
All of these
Event aware topology Management in WSN's (Wireless Sensor Networks) include
Timely detection of an event of interest
Monitoring the event
Adapting to the changes of the event state
All of these
WBAN stands for:
Wireless Buffer Area Networks
Wireless Body Area Networks
Wired Body Area Networks
Wired Buffer Area Networks
With respect to WSN coverage problems, the OGDC problem is an acronym for:
Optimal Geographic Density Control
Optimal Geographic Distance Control
Optimal Geographic Distance Coverage
Optimal Geographic Density Coverage
Which of these can be regarded as the salient feature(s) of a 3-D UWSN architecture?
Silent and energy efficient scheme for mobile UWSNs
Iterative approach with less initiaters nodes (anchors) required
Mobility predicttion
All of these
EM Communication for Nano-networks centers around:
0.1 - 10 Tera Hertz channel
0.1 - 10 Giga Hertz channel
10 - 100 Tera Hertz channel
10 - 100 Giga Hertz channel
WMSN stands for:
Wired Multimedia Sensor Networks
Wireless Multimedia Sensor Networks
Wireless Mobile Sensor Networks
Wireless Machine Sensor Networks
UAV-VANETS link-up may be used for:
Visual guidance
Data muling
Coverage enhancement
All of these
Sensor coverage in WSN's deal with
Sensor placement
Density control
Both a & b
None of the above
In WSN area coverage problem, which is TRUE?
Energy efficient random coverage
Connected random coverage
A n/w is connected if any active node can communicate with any other active nodes
All of these
In human-centric sensing, which of these is NOT a constraint?
Energy of sensing devices
Privacy of users
Participant selection
Network size
Which of these topologies cannot be a reliable UAV network topology
Star
Flat Mesh
Hierarchical Mesh
Tree
Low-end M2M nodes are:
Mobile
Energy efficient
Complex
Costly
In what type of pin, DHT sensor should be connected?
analog pin
digital pin
any one
None of these
Why interoperability is required?
Heterogeneous wireless communication protocols
Different programming languages
Different control modes
All of these
What type of Arduino pin is used to give command to Servo motor?
Analog pin
Digital pin
Any one
None of this
Arduino boards support output supply voltage of:
5V only
3.3 V only
9V only
5V, 3.3 V
Arduini UNO supports these numbers of PWM pins:
1
5
6
14
Analyse the code:
Prints the value from sensor to console every 1000 milliseconds
Prints the value from sensor to console every 100 milliseconds
Prints the value from sensor to console if it is more than 1000 every 100 milliseconds
Prints the value from sensor to console if it is delayed by 1000 milliseconds
What is the servo library command to move the shaft of servo motor back and forth across 180 degrees
Knob()
Sweep()
write()
detatch()
Arduino setup requires
Arduino board and IDE
Arduino Board, programmer board, IDE
Both a & b
None
Which of the following library function can be used to generate a random number in Arduino?
randomize()
ran()
rand()
random()
Which pin of Arduino should be connected with the pin-3 of the 4-pin DHT sensor?
Pin 5V
Pin 3.3 V
Pin GND
None of these
Which one is correct for the nested control statements in Python?
Elseif
Elif
Ifwhile
none
Which of the following data type is correct for the object:
D = ['python', 3.43, 'p', 100]
Array
Dictionary
Tuple
List
Which of the following is mutable object in Python?
Tuple
Bool
Int
List
What is the maximum peripheral current draw allowed in Raspberry Pi 3?
1200 mA
700 mA
500 mA
100 mA
What does the method isatty() return for an existing interactive file stream in Python?
Int
String
Bool : True
Bool : False
Relay is a kind of:
Sensor
Actuator
Hub
Router
What are the mode(s) used for addressing the pins in Raspberry Pi?
GPIO
BCM
BOARD & BCM
GPIO, BCIM & CAN
The BCM 14 pin of Raspberry Pi is :
Physical pin 8
UART
Transmitter pin
All of these
IoT refers to :
Interconnections of devices in a network
Exchange of data between devices in a network
An ecosystem of devices, accessible through internet.
All the above.
Devices in IoT support :
Sensing
Actuating
Data collection
All the above
Opening a file in append mode in Python
Overrides the existing data in the file
Adds the new data to the existing data at the end of the file
Adds the new data at the beginning of the existing file
Cannot write data to a file in append mode
Control message from switch to controller in SDN is termed as:
Flow-rule message
PACKET-IN message
Control Message
Data Message
Bind() function in Python socket programming is used to
Specify the port for service on the specified host
Read data from the socket
Send data to the socket
Initiate the connection
Protocol used for connectionless socket programming
TCP
UDP
Both
None
When does a switch send PACKET-IN message to a controller in SDN?
Flow-rule associated with a received flow does not exist
All the time
After deleting a flow-rule
None of the above
Which one is an SDN controller?
POX
Open Day light
ONOS
All the above
Give the output of the following snippet:
Name="Split-this-string"
Name.split("-")
["Split", "this", "string"]
Split, this, string
["Split-", "this-", "string"]
Split this string
Application Program Interface (API) used between application and control planes is known as
Northbound API
Eastbound API
Southbound API
Westbound API
An SDN controller can be placed based on
Hierarchical manner
Star topology
Mesh topology
All the above
Which of the following is not a function in matplotlib library of Python?
Display()
Show()
Subplot()
Title()
The major challenge(s) in s/w defined IOT is (are):
Mobility of devices
Heterogeneity of devices
Resource constraint
All the above
From the given options, which is not a characteristic of cloud computing?
Low management effort
Low level generalization of computation
On-demand network access
Configurable computing resources
Pre-configure facility for allocation of virtualized resources comes under
Availability & reliability
Scalability & Elasticity
Manageability and interoperability
Measured services
If the devices are highly mobile in IoT, one of the disadvantage of using SDN can be:
High control overhead
Low data rate
Both
None
Broad network access in cloud deals with
Dynamic allocation for scale-out
Recorded resource usage
Availability of cloud resource over the network
All the above
Mice flows have:
Large duration
Short duration
Moderately large duration
None of the above
What is the full form of HDFS
Hadoop distributed file system
Hadoop database file system
Half-duplex file system
Hadoop de-dentralised file system
Which of the following is not a part of Hadoop?
HDFS
YARN
Both
None
Green cloud simulator is based on :
NS-3
NS-2
CloudSim
DCSim
The disadvantage(s) of private cloud is(are):
Total control over the system and data
Regular maintenance
Minimum security concerns
All the above
Which of these can be considered as the skeleton of smart cities?
Buildings
Transportation
Banks
Sensors
Which company first coined fog computing?
IBM
HP
DELL
CISCO
Smart Agriculture incorporates
Alert generation in case of above threshold pollutants in air or water
Scheduling harvesting and transfer of harvest to warehouse and market
Both the above
None of the above
What is the main characteristics of fog node?
Storage
Storage and computing capability
Computing and networking capability
Storage, computing and networking capability
Which of these connects wired with wireless networks for increased sharing of media, control and resources in shared network
UPnP
DLNA
LAN
WiFi
A smart home consists of
Sensor networks
Communication network infrastructure
Intelligent control and management
All the above
UPnP stands for:
United Protocol and Plugs
Universal Protocol and Plugs
Universal Plug and Play
United Plug and Play
Renewable energy is generated from
Natural resources
Artificial resources
Nuclear resources
All the above
Smart grid enables
Distributed energy management
Centralised energy management
Both the above
None of the above
Connected vehicles are capable of
Communicating with other devices within the vehicle
Communicating with other similar vehicles
Communication with fixed infrastructure
All the above
IIoT (Industrial IoT) is mainly focussed on
Convenience of individuals
Efficiency, safety and security of operation and individuals
Efficiency of the system
Data security
What is the key technology to enable V2V (Vechicle to Vehicle) and V2R (Vision to Reality) communication
RFID communication
Dedicated Short Range communication
Long range communication
Medium Range communication
RSU's (Road side Units) are connected to the Internet by
Relays
Routers
Gateways
None of these
What are the risks associated with IIoT (Industrial IoT)?
Lack of Vision and Leadership
Cheap sensors
Confident workforce
Both Cheap sensors and Confident workforce
Which of the following can be the reasons for packet drop in IoT network?
Dense foliage
High temprature
Rain
All the above
The characteristics of sensor node is (are)
Energy efficiency
Distributed sensing
Low cost
All the above
What is the network topology of WBAN (Wireless Body Area Network) devices
Bus
Star
Mesh
None
Long term trend tracking and preventive care in IoT healthcare is possible due to
ability of smart devices to collect data autonomously
ubiquitous connectivity
smart algorithms and analytics
all the above
IoT-based sensing layer devices typically communicate with each other using which of the following?
Short range communication technologies such as Bluetooth and Zigbee
Long range communication technologies such as WLAN, WiMAX and LTE
Both may be used
Devices do not communicate with each other
Which of these sensors can be most cheaply used for activity monitoring in wearables?
Accelerometer
Cameras
LIDARs
LED
