NPTEL Introduction To Internet Of Things Week 7 Assignment Answers 2025
1. In Python socket programming, while defining a socket, SOCK_STREAM refers to a type of
a. SocketFamily
b. SocketType
c. SocketName
d. SocketProtocol
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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()
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3. In Socket programming, the parameter AF_INET stands for ____________.
a. Unix protocols
b. Internet Protocol (IP)
c. File sharing
d. Time slicing
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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
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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
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6. During remote server access using socket programming what is the utility of the ..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
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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
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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
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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
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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
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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
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12. 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
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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.
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14. Hierarchical SDN architecture is also known as _____________ architecture.
a. Tree
b. Flat
c. Mesh
d. Line
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15. Integrating SDN with IoT is not recommended and is not a suitable approach to follow
a. False
b. True
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