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NPTEL Introduction to Internet of Things Week 7 Assignment 7 Answer 2022 :-
Q1. You have an IoT temperature sensor that is sensing temperature from a particular location and sending the data over the network to a server situated far away in another city for storage. This is an example of remote data logging.
Q.2. For a two-way communication between a client and server, i.e both the client and the server send data to each other, it is important that both of them knows about the following about each other
- Only the IP address of server
- Only the port number of client
- Both the IP address and port number
- Neither the IP address nor the port number
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Q.3. If you are using Raspberry Pi (RPi) to connect standard IoT sensors (such as DHT temperature sensors), which among the following components of the Raspberry Pi do you use connect your Pi to your sensor for data transfer.
- HDMI port of the RPi
- MicroSD card slot of the RPi
- Ethernet LAN port of the RPi
- General Purpose Input Output (GPIO) pins of the RPi
Q.4. It is possible to connect a single DHT temperature sensor with a suitable number of connection wires with two Raspberry Pis acting as a client for the same sensor.
Q.5. Which among the following denotes the correct connection order for a standard 4-PIN DHT sensor with the order of PIN numbers taken as 4,3,2,1 (from right to left)
- Data, Null, Ground, Power
- Ground, Data, Power, Null
- Ground, Null, Data, Power
- Power, Data, Null, Ground
Q.6. Using the matplotlib library in Python, you are plotting a graph of pressure values versus time, with pressure taken in the vertical axis and time taken in the horizontal axis. While writing the code to plot the graph, which among the following is the correct parameter (denoted by “??) that you can write within the function “ylabel(??)”
Q.7. Lack of centralized control is a problem and limitation of traditional network architectures without Software Defined Networking (SDN) support
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Q.8. Detaching the physical hardware from the overlying software components, such as the Operating System (OS) and applications forms an important aspect of transitioning to SDN
Q.9. Flow rules are stored within SDN switches that run the OpenFlow protocol in the following format.
- None of these
Q.10. Among the following, which is the most unlikely to be considered as a suitable candidate for a match field for flow rules in SDN
- Source port number of the packet
- Destination IP address of the packet
- Temperature of the switch motherboard
- Destination MAC address.
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Q.11. In SDN, the central controller of one network can communicate with the central controller of another SDN network through which of the following directional APIs
- East-West bound APIs
- Southbound APIs
- Westbound APIs
- None of these.
Q.12. Suppose in SDN, there are two switches S1 and S2. The same packet P arrives in both the switches, S2 does not have the appropriate flow rule to forward this particular packet, whereas $1 has. Then with respect to the two switches, what is the correct action that is taken.
- S1 sends PACKET_IN to controller, S2 forwards the packet
- S2 sends PACKET_IN to controller, S1 forwards the packet
- Both S1 and S2 send PACKET_IN to controller
- Both S1 and S2 forward the packet.
Q.13. No matter how big an SDN network becomes, we can never have more than one SDN controller.
Q.14. With Software Defined IoT, it is possible to control the individual physical sensor and actuator nodes as well as rule placement of the backbone network remotely by suitable orchestration and software.
Q.15. Soft-WSN that has been proposed as one of the solutions to Software Defined IoT achieves the following
- Only Device Management
- Only Topology Management
- Both Device and Topology Management
- Neither Device nor Topology Management
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About NPTEL Introduction to Internet of Things Course:Internet of Things (IoT) is presently a hot technology worldwide. Government, academia, and industry are involved in different aspects of research, implementation, and business with IoT. IoT cuts across different application domain verticals ranging from civilian to defence sectors. These domains include agriculture, space, healthcare, manufacturing, construction, water, and mining, which are presently transitioning their legacy infrastructure to support IoT. If you have not registered for exam kindly register Through https://examform.nptel.ac.in/ COURSE LAYOUT The course structure and content covers, over a period of 8 weeks:
- Week 1: Introduction to IoT: Part I, Part II, Sensing, Actuation, Basics of Networking: Part-I
- Week 2: Basics of Networking: Part-II, Part III, Part IV, Communication Protocols: Part I, Part II
- Week 3: Communication Protocols: Part III, Part IV, Part V, Sensor Networks: Part I, Part II
- Week 4: Sensor Networks: Part III, Part IV, Part V, Part VI, Machine-to-Machine Communications
- Week 5: Interoperability in IoT, Introduction to Arduino Programming: Part I, Part II, Integration of Sensors and Actuators with Arduino: Part I, Part II
- Week 6: Introduction to Python programming, Introduction to Raspberry Pi, Implementation of IoT with Raspberry Pi
- Week 7: Implementation of IoT with Raspberry Pi (contd), Introduction to SDN, SDN for IoT
- Week 8: SDN for IoT (contd), Data Handling and Analytics, Cloud Computing
- Week 9: Cloud Computing(contd), Sensor-Cloud
- Week 10: Fog Computing, Smart Cities and Smart Homes
- Week 11: Connected Vehicles, Smart Grid, Industrial IoT
- Week 12: Industrial IoT (contd), Case Study: Agriculture, Healthcare, Activity Monitoring