Introduction To Internet Of Things Week 7 Nptel Answers
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Table of Contents
Introduction To Internet Of Things Week 7 Nptel Answers (Jan-Apr 2025)
Que. 1
In Python socket programming, while defining a socket, SOCK_STREAM refers to a type of
a) SocketFamily
b) SocketType
c) SocketName
d) SocketProtocol
Que. 2
If you want to change the label of the Y-axis while plotting a graph using matplotlib in Python, what among the following functions do you use? Suppose you have imported matplotlib as plt
a) plt.show()
b) plt.plot()
c) plt.ylabel()
d) plt.yaxis()
Que. 3
In Socket programming, the parameter AF_INET stands for ___________.
a) Unix protocols
b) Internet Protocol (IP)
c) File sharing
d) Time slicing
Que. 4
Suppose a Python server is receiving data from a socket as follows,
data, addr = sock.recvfrom(1024)
What kind of socket ‘sock’ is being considered here?
a) TCP socket
b) UDP socket
c) TAP socket
d) None of the given
Que. 5
What is the use of the Mobi-Flow protocol?
a) Enabling static SDN
b) Enabling SDN to incorporate mobility
c) Enabling Odin Master
d) Enabling traditional BGP
Que. 6
During remote server access using socket programming, what is the utility of the .<socket_name>.listen() function?
a) To create a new socket
b) To bind the socket to connection
c) To wait for clients to connect
d) To close the connection
Que. 7
Which among the following is the correct direction for PACKET_OUT type messages in SDN?
a) From controller to switch
b) From switch to controller
c) Between two switches
d) Between two controllers
Que. 8
Which among the following is a limitation of the traditional non-SDN networks?
a) Switches do not possess routing table
b) Switches are unable to forward traffic
c) Switches do not have a global view of the network.
d) All of the given
Que. 9
During remote server access by a Raspberry Pi, where the Raspberry Pi acts as a client, the client needs the following?
a) Only IP address of server
b) Only port number
c) Both server IP address and port number
d) Client’s IP address
Que. 10
With respect to the concept of soft time-out and hard time-out in SDN switches, which of the following relations hold?
a) Soft time-out >= hard time-out
b) Hard time-out >= soft time-out
c) Soft time-out = hard time-out always
d) None of the given
Que. 11
Which of the following is true?
a) Traditional Network: Routing Table, Software Defined Network: Routing Table
b) Traditional Network: Flow Table, Software Defined Network: Routing Table
c) Traditional Network: Routing Table, Software Defined Network: Flow Table
d) Traditional Network: Flow Table, Software Defined Network: Flow Table
Que. 12
Consider the following figure below. To which issue of SDN does this particular figure relate?
a) Controller placement issue
b) Flow Rule placement issue
c) Hardware placement issue
d) Analysis placement issue
Que. 13
With respect to the directional APIs in SDN, what is the functionality of East-Westbound APIs?
a) To communicate between the controller and switches
b) To communicate among multiple controllers
c) East-Westbound APIs do not exist
d) To communicate between switches themselves.
Que. 14
Hierarchical SDN architecture is also known as __________ architecture.
a) Tree
b) Flat
c) Mesh
d) Line
Que. 15
Integrating SDN with IoT is not recommended and is not a suitable approach to follow.
a) False
b) True
Introduction To Internet Of Things Week 7 Nptel Answers (July-Dec 2024)
Q1.‘Adafruit provides a library to work with DHT22 Sensor.
a. True
b. False
Answer: a. True
Q2.‘Which python library is used for plotting the data in 2D.
a. List
b. Numpy
c. Pandas
d. Matplotlib
Answer: d. Matplotlib
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Q3.Fill in the blanks. creates a two-way communication between two nodes in |
a network.
a. Peer-to-Peer Network
b. Parallel Programming
c. Socket Programming
d. None of these
Answer: c. Socket Programming
Q4‘What are the two main challenges of SDN?
a. File placement and Node placement
b. Rule placement and Controller placement
c. Both a and b
d. Neither a nor b
Answer: b. Rule placement and Controller placement
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Q5.IoT cannot control the network remotely.
a. True
b. False
Answer: b. False
Q6.‘Which of the following is a part of data processing?
a. Splitting
b. Filtering
¢. Neither a no rb
d. Both a and b
Answer: d. Both a and b
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Q7.‘What is introduced if a controller is down in SDN?
a. Backup controller
b. Intro controller
c. Both a and b
d. Neither a nor b
Answer : a. Backup controller
Q8.Ion() is used to add a subplot in the data plotting in python.
a. True
b. False
Answer: b. False
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Q9.Matplotlib cannot plot in 2D.
a. True
b. False
Answer: b. False
Q10.How many rules are deleted from the switch at hard timeout?
a. None
b. All
c. Half
d. Some
Answer: b. All
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Q11.Are controllers able to handle all incoming requests from switches?
a. Yes
b. No
Answer: a. Yes
Q12.Are Indigo and LINC Open source?
a Yes
b. No
Answer: a. Yes
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Q13‘Which of the following forward the sensed data based on the ID of the source node?
a. ID-centric data forwarding
b. Northbound IDs
c. Both a and b
d. Neither a nor b
Answer: a. ID-centric data forwarding
Q14.‘How many requests can a controller handle through a single thread?
a. 200/sec
b. 50/sec
¢. Neither a nor b
d. Both a and b
Answer: a. 200/sec
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Q15.Switches that forward the traffic in a distributed manner have a global view of the network.
a. True
b. False
Answer: b. False
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Introduction To Internet Of Things Week 7 Nptel Answers (JAN-APR 2024)
Course Name: Introduction To Internet Of Things
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These are Introduction To Internet Of Things Assignment 7 Answers
Q1. DHT Sensor refers to Digital Humidity and Temperature Sensor.
a. True
b. False
Answer: a. True
Q2. Fill in the blanks ________ is a python library used for plotting the data in 2D.
a. List
b. Numpy
c. Pandas
d. Matplotlib
Answer: d. Matplotlib
Q3. Fill in the blanks _________ makes a scatter plot of the given points.
a. ion()
b. figure()
c. Scatter()
d. None of these
Answer: c. Scatter()
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These are Introduction To Internet Of Things Assignment 7 Answers
Q4. What are the two main challenges of SDN?
a. File placement and Node placement
b. Rule placement and Controller placement
c. All of these
d. None of these
Answer: b. Rule placement and Controller placement
Q5. In soft-timeout, all the rules are deleted from the switch.
a. True
b. False
Answer: b. False
Q6. Which of the following is a component of SDN?
a. Hardware switches
b. Flow-rules
c. None of these
d. All of these
Answer: d. All of these
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These are Introduction To Internet Of Things Assignment 7 Answers
Q7. What is introduced if a controller is down in SDN?
a. Backup controller
b. Intro controller
c. All of these
d. None of these
Answer: a. Backup controller
Q8. Southbound API is used to communicate between control layer and application layer.
a. True
b. False
Answer: b. False
Q9. SDN is OpenFlow.
a. True
b. False
Answer: b. False
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These are Introduction To Internet Of Things Assignment 7 Answers
Q10. Which of the following forwards the sensed data based on the ID of the source node?
a. Value-centric data forwarding
b. ID-centric data forwarding
c. All of these
d. None of these
Answer: b. ID-centric data forwarding
Q11. Does integrating SDN in IoT provide intelligent routing decisions?
a. Yes
b. No
Answer: a. Yes
Q12. Are Indigo and LINC Open source?
a. Yes
b. No
Answer: a. Yes
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These are Introduction To Internet Of Things Assignment 7 Answers
Q13. Which of the following is used to communicate among multiple controllers in the control layer?
a. East-Westbound APIS
b. Northbound APIs
c. All of these
d. None of these
Answer: a. East-Westbound APIS
Q14. How many requests can a controller handle through a single thread?
a. 200/sec
b. 50/sec
c. None of these
d. All of these
Answer: a. 200/sec
Q15. Size of the ternary content-addressable memory is not limited at the switches.
a. True
b. False
Answer: b. False
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These are Introduction To Internet Of Things Assignment 7 Answers
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Introduction To Internet Of Things Week 7 Nptel Answers (July-Dec 2023)
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These are Introduction To Internet Of Things Assignment 7 Answers
Q1. Raspberry Pi is like a mini computer which can perform a wide range of general purpose tasks.
a. True
b. False
Answer: a. True
Q2. What is the complete form of GPIO pins on Raspberry Pi devices.
a. General Public Input/Output
b. Generative Purpose Input/Output
c. General Purpose Input/Output
d. Global Purpose Input/Output
Answer: c. General Purpose Input/Output
Q3. The Python program which you execute on Raspberry Pi to read data from sensors and control actuators has the same syntax and style as any other Python program.
a. False
b. True
Answer: b. True
These are Introduction To Internet Of Things Assignment 7 Answers
Q4. During remote server access by a Raspberry Pi, where the Raspberry Pi acts as a client, the client needs the following?
a. Only IP address of server
b. Only port number
c. Both server IP address and port number
d. Client’s IP address
Answer: c. Both server IP address and port number
Q5. Which among the following are valid data processing activities
a. Data Splitting
b. Data filtering
c. Data plotting
d. All of the given
Answer: d. All of the given
Q6. Consider the following Python code snippet. Assume the syntax is correct and all required libraries are imported
var = ‘Sensor@Actuator%Arduino’
pt = var.split(‘%’)
print(pt)
What will be the output (See every detail, including the apostrophes carefully)?
a. [‘Sensor’,’Actuator’,’Arduino’]
b. [‘Sensor@Actuator’,’Arduino’]
c. [‘Sensor’,’Actuator%Arduino’]
d. [‘Sensor@Actuator%Arduino’]
Answer: b. [‘Sensor@Actuator’,’Arduino’]
These are Introduction To Internet Of Things Assignment 7 Answers
Q7. Which among the following functions do you use while using MATPLOTLIB to add title to a plot?
a. plot()
b. add()
c. label()
d. title()
Answer: d. title()
Q8. In traditional non software-defined network consisting of a network of switches, suppose OSPF is being used as the routing protocol. In this context which among the following is true.
a. All the switches execute OSPF distributively
b. Only one switch executes OSPF
c. No switch executes OSPF
d. All of these are true
Answer: a. All the switches execute OSPF distributively
Q9. In SDN, the Operating System (OS) is separated (i.e not strongly coupled) from the physical hardware for each switch.
a. True
b. False
Answer: a. True
These are Introduction To Internet Of Things Assignment 7 Answers
Q10. Which among the following is a popular protocol implementing SDN?
a. OpenSwitch
b. OpenStack
c. OpenFlow
d. OpenEdge
Answer: c. OpenFlow
Q11. With respect to Software Defined Networking (SDN), which among the following is true?
a. SDN couples the data plane and control plane.
b. SDN has no relation to either data plane or control plane
c. SDN separates the data plane and control plane.
d. None of the stated.
Answer: c. SDN separates the data plane and control plane.
These are Introduction To Internet Of Things Assignment 7 Answers
Q12. Consider the following figure below. To which issue of SDN does this particular figure can be related to?
a. Controller placement issue
b. Flow Rule placement issue
c. Hardware placement issue
d. Analysis placement issue
Answer: b. Flow Rule placement issue