INTRODUCTION TO INTERNET OF THINGS: Assignment 12:

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1. If all the data points are same, statistical dispersion becomes –

 a. 1

 b. 10

 c. 100

 d. None

Ans: d

2. The desirable characteristics of an IoT sensor node are

 a. Energy-efficiency

 b. Distributed sensing

 c. Low-cost

 d. All of the above

Ans: d

3. Long term trend tracking and preventive care in IoT healthcare is possible due to

 a. ability of smart devices to collect data autonomously

 b. ubiquitous connectivity

 c. smart algorithms and analytics

 d. all of the above

Ans: d

4. Activity monitoring in smart homes:

 a. Provides better quality of life

 b. Provides information accurately in a reliable manner

 c. Provides continuous monitoring support.

 d. All of these

Ans: d

5. Network-based activity recognition is:

 a. Larger and processing intensive

 b. Low power consumption

 c. Dependent on network connection

 d. All of these

Ans: d

6. Which of these is a feature of qualitative data analytics?

 a. Data is not described through numerical values

 b. Described by some sort of descriptive context such as text

 c. Data can be gathered by many methods such as interviews, videos and audio recordings, field notes.

 d. All of these

Ans: d

7. Which is true?

 a. The statistical model is defined as the mathematical equation that are formulated in the form of relationships between variables.

 b. A statistical model illustrates how a set of random variables is related to another set of random variables.

 c. Both a and b

 d. None of these

Ans: c

8. ANOVA is applied

 a. when less than 2 samples/populations are to be compared

 b. when more than 2 samples/populations are to be compared

 c. Both a and b

 d. None of these

Ans: b

9. Which of the following can be the reasons for packet drop in IoT network?

 a. Dense foliage

 b. High temperature

 c. Rain

 d. All of the above

Ans: d

10. The types of ANOVA are:

 a. 2

 b. 3

 c. 4

 d. 5

Ans: b

11. Wearables can be used for:

 a. Child‐care

 b. Elderly‐care

 c. Entertainment

 d. All of these

Ans: d

12. Wearable-based activity monitoring can be used for:

 a. Continuous monitoring of activity results in daily observation of human behavior and repetitive patterns in their activities.

 b. Easy integration and fast equipping

 c. Long term monitoring

 d. All of these

Ans: d

13. Which of these is true is case of network based activity monitoring?

 a. Larger and processing intensive methods can be applied

 b. Group based analytics possible

 c. Both a and b

 d. None of these

Ans: c

14. What is the network topology of Ambusens WBAN devices?

 a. Bus topology

 b. Star Topology

 c. Mesh Topology

 d. None of the above

Ans: b

15. Which of these sensors can be most cheaply used for basic activity monitoring in wearables?

 a. Accelerometer

 b. Cameras

 c. LIDARs

 d. LED

Ans: a

INTRODUCTION TO INTERNET OF THINGS: Assignment 11:

1. Self-healing in smart grid can be done using –

 a. Dampening unwanted power oscillations

 b. Avoiding unwanted flows of current through the grid

 c. Rerouting power flows in order to avoid overloading in a transmission line

 d. All of these

Ans: d

2. Renewable energy is generated from –

 a. Natural resources

 b. Artificial resources

 c. Nuclear resources

 d. All of the above

Ans: a

3. The V2X paradigm follows:

 a. A distributed architecture

 b. A centralized architecture

 c. Both a and b

 d. None of these

Ans: a

4. What is the key technology to enable V2V and V2R communication?

 a. RFID Communication

 b. Dedicated Short Range Communication

 c. Long Range Communication

 d. Medium Range Communication

Ans: b

5. What are the risks associated with IIoT?

 a. Lack of vision and leadership

 b. Cheap sensors

 c. Confident workforce

 d. Both cheap sensors and confident workforce

Ans: a

6. RSUs are connected to the Internet by:

 a. Relays

 b. Routers

 c. Gateways

 d. None of these

Ans: c

7. IIoT is mainly focused on

 a. Convenience of individuals

 b. Efficiency, safety and security of operation and individuals.

 c. Efficiency of the system.

 d. Data security.

Ans: b

8. Smart grid enables –

 a. Distributed energy management

 b. Centralized energy management

 c. Both distributed and centralized energy management

 d. None of these

Ans: a

9. Traditional electric grids are associated with:

 a. Energy generation is done in centralized power plants

 b. Energy distribution is one directional – from the power plant to the homes or industries.

 c. Uni‐directional communication

 d. All of these

Ans: d

10. The smart grid is also termed as:

 a. Electricity with a brain

 b. The energy internet

 c. The electronet

 d. All of these

Ans: d

11. Which of the following is not a property associated with power quality of smart grids:

 a. Self‐Healing

 b. Frequency Monitoring and Control

 c. Load Forecasting

 d. Asset Management

Ans: d

12. Home power generation is a term associated with:

 a. Power generation system at consumers‐end

 b. Rooftop solar electric systems

 c. Small wind turbines

 d. All of these

Ans: d

13. In smart grids, PMU stands for:

 a. Phase measurement unit

 b. Phasor measurement unit

 c. Phase monitoring unit

 d. All of these

Ans: b

14. The typical data rate associated with EnOcean is?

 a. 9600 bps

 b. 3200 bps

 c. 19200 bps

 d. 1152300 bps

Ans: a

15. MDMS is the context of smart grids stands for:

 a. Meter data management unit

 b. Metric data measurement unit

 c. Metric data monitoring unit

 d. None of these

Ans: a

INTRODUCTION TO INTERNET OF THINGS: Assignment 10:

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1. Smart Agriculture incorporates:

 a. Alert generation in case of above-threshold pollutants in the air.

 b. Scheduling harvesting and arranging proper transfer of harvests to warehouses or markets.

 c. Both the above

 d. None of these

Ans: b

2. Heterogeneity for IoT in smart cities stands for:

 a. Integration of varying hardware platforms and specifications.

 b. Integration of different radio specifications.

 c. Integration of various software platforms.

 d. All of these

Ans: d

3. Which company first coined fog computing?

 a. IBM

 b. HP

 c. Dell

 d. CISCO

Ans: d

4. Which of these connects cable-based networks with wireless networks for increased sharing of media, control and access and can share network media resources?

 a. UPnP

 b. DLNA

 c. LAN

 d. WiFi

Ans: b

5. The need for smart cities arose due to:

 a. Rapidly growing urban population

 b. Fast depleting natural resources

 c. Changes in environment and climate

 d. All of the above

Ans: d

6. The following goals are currently associated with smart vehicles:

 a. Assistance to drivers during bad weather or low-visibility.

 b. Detection of bad driving patterns or driving under the influence of substances.

 c. Auto alert generation during crashes.

 d. All of the above

Ans: d

7. Which of the following is a social and legal challenge of IoT in smart cities?

 a. Services based on user provided information may be subject to local or international laws.

 b. Individual and informed consent required for using humans as data sources.

 c. Both a and b

 d. None of these

Ans: c

8. In multi-sensor data fusion, which is true:

 a. Combines information from multiple sensor sources.

 b. Enhances the ability of decision making systems to include a multitude of variables prior to arriving at a decision.

 c. Inferences drawn from multiple sensor type data is qualitatively superior to single sensor type data.

 d. All of the above

Ans: d

9. Amount of energy harvested depends upon:

 a. Sensitivity of the harvesting circuit

 b. Distance between the device and source

 c. Environment

 d. All of the above

Ans: d

10. X-10 protocol is characterized by:

 a. Low-speed and low data rate.

 b. Low speed and high data rate

 c. High speed and low data rate

 d. High speed and high data rate

Ans: a

11. UPnP stands for:

 a. United Protocol and Plugs

 b. Universal Protocol and Plugs

 c. Universal Plug and Play

 d. United Plug and Play

Ans: c

12. Konnex (KNX) is:

 a. an open standard for home and building networks.

 b. Smart parking system

 c. Smart energy system

 d. None of these

Ans: a

13. HAN architectures:

 a. Uses XML for description and web-services for control.

 b. Follows a Service oriented Architecture (SOA).

 c. Not tied to any software, language or architecture.

 d. All of these

Ans: d

14. Which of these can be considered as the skeleton for smart cities?

 a. Buildings

 b. Transportation

 c. Banks

 d. Sensors

Ans: a

15. DSRC in the context of smart vehicles stands for:

 a. Detailed Short Rate Communication

 b. Dedicated Short Range Communication

 c. Data Short Range Communication

 d. Data Spedy Robust Communication

Ans: b

INTRODUCTION TO INTERNET OF THINGS: Assignment 9

1. We normally take snapshot in Openstack, _______.

 a. after the installation of an instance

 b. before the installation of an instance

 c. it is an inbuilt image in Openstack

 d. it should be downloaded from the internet

Ans: a

 2. Sensor-Cloud deals with

 a. Sensor-for-Service

 b. Sensor-as-a-Service

 c. Sensor-in-Cloud

 d. None of these

Ans: b

 3. In OpenStack, NOVA is

 a. image service

 b. object service

 c. compute service

 d. used for providing the networking service

Ans: c

 4. In OpenStack, the duration of service usage is monitored by

 a. Cinder

 b. Ceilometer

 c. Heat

 d. Neutron

Ans: b

 5. The concept of Sensor-Cloud is

 a. based on simple storing the sensor data into cloud

 b. based on the accumulating the sensor data from one application region and transmit these data to another region only

 c. based on virtualization of sensor

 d. None of the above options is correct

Ans: c

 6. Among the following actors in sensor-cloud architecture, who is responsible for managing the infrastructure and deals with price?

 a. End-users

 b. Sensor owners

 c. SCSP

 d. None of the above

Ans: c

 7. In sensor-cloud, who takes decision whether the data should be provided directly to the end user or not?

 a. Internal Cache

 b. External Cache

 c. End-user

 d. Sensor-owner

Ans: a

 8. What is a good approach to reduce latency?

 a. Analyzing data close to the data source

 b. Analyzing data in cloud

 c. Increasing number of nodes

 d. Decreasing number of nodes

Ans: a

 9. Which of the following company coined the term “Fog Computing” ?

 a. Apple

 b. Amazon

 c. CISCO

 d. Microsoft

Ans: c

 10. Resource usage information in service accounting is obtained in the form of

 a. Data set

 b. Tables

 c. Records

 d. Any form

Ans: c

 11. For which of the following reasons the fog computing should be used?

 a. For storing a huge amount of data in the fog device

 b. While handling time sensitive data, a millisecond can make a huge differences

 c. In the absence of network connectivity with users’ device, the fog device can provide the data

 d. The data rate in a fog device is always very high.

Ans: b

 12. Which of the following is/are the advantages of Fog computing?

 a. Reduce the latency during decision making

 b. Data can be stored in local server

 c. Fog nodes can be programmed according to the customer’s requirements

 d. All the above

Ans: d

 13. To uninstall the OpenStack, which of the following files is required to be run?

 a. Unistack.sh

 b. unstack.sh

 c. remstack.sh

 d. uninstallstack.sh

Ans: b

 14. Why data volume is a problem in IoT-based cloud computing?

 a. because data are encrypted and hard to analyze

 b. because data coming from IoT devices are always in raw format and difficult to store

 c. because the density of IoT devices is increasing each day and in turn the volume of generated data is growing very fast

 d. because IoT device density is decreasing each day and in turn the volume of generated data are decreasing very fast

Ans: c

 15. Blue Pill attack on hypervisor is a threat example of:

 a. Host security at PaaS level

 b. Host security at SaaS level

 c. Host security at IaaS level

 d. None of the above

Ans: c