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Which of the following accurately describes SaaS?

  • Applications are available as ‘services’ via the Internet. (correct)
  • Applications are typically provided for a one-time purchase.
  • End-users manage the underlying infrastructure.
  • Users install applications on their local machines.

    • In the context of SaaS, which statement about control is correct?

  • End-users have complete control over the cloud infrastructure.
  • End-users have minimal control over the application environment. (correct)
  • Cloud providers do not restrict access based on user control.
  • End-users have full access to manage server settings.

    • What does it mean for SaaS applications to be accessible by various client devices?

  • Users can access applications from any device with an internet connection. (correct)
  • Applications can only be accessed through specific operating systems.
  • Usage is limited to desktop computers only.
  • Applications require specialized hardware to function.

    • What is the key characteristic of a service model that is independent of device or location?

    <p>Ubiquity</p> Signup and view all the answers

    Which of the following statements is NOT a benefit of using SaaS?

    <p>Complete user control over hardware installations.</p> Signup and view all the answers

    What distinguishes SaaS from traditional software deployment?

    <p>SaaS is accessed via a subscription model rather than a one-time purchase.</p> Signup and view all the answers

    Which of the following is a reason organizations choose SaaS over on-premise solutions?

    <p>Reduced IT maintenance burden.</p> Signup and view all the answers

    Which service model provides a platform for developers to create applications?

    <p>Platform-as-a-Service</p> Signup and view all the answers

    Which of the following is primarily considered a limitation of Wireless Sensor Networks (WSNs)?

    <p>Procurement</p> Signup and view all the answers

    In sensor-cloud architecture, which of the following actors is primarily responsible for management functions?

    <p>Sensor-Cloud Service Provider</p> Signup and view all the answers

    Which of the following components is included in the work-flow of sensor-cloud?

    <p>Virtual Sensor Manager</p> Signup and view all the answers

    What does Software-as-a-Service (SaaS) offer to developers?

    <p>A platform for creating applications offered as a service via the Internet</p> Signup and view all the answers

    What term did CISCO coin that refers to a computing framework extending cloud capabilities to the edge of networks?

    <p>Fog Computing</p> Signup and view all the answers

    Which statement is true regarding the payment model of Software-as-a-Service?

    <p>It supports a fully pay-as-you-go model.</p> Signup and view all the answers

    Which statements accurately describe the limitations of Wireless Sensor Networks (WSNs)?

    <p>Deployment, Maintenance, and Procurement</p> Signup and view all the answers

    Which of the following best describes the host level security at PaaS and SaaS levels?

    <p>The host OS is hidden from end users, shifting security responsibilities to cloud providers.</p> Signup and view all the answers

    Which of the following roles are involved in sensor-cloud architecture?

    <p>End-users, Sensor-owners, and Sensor-Cloud Service Providers</p> Signup and view all the answers

    What is NOT a component of the sensor-cloud work-flow?

    <p>User Interface Manager</p> Signup and view all the answers

    Which of the following features is NOT characteristic of Software-as-a-Service?

    <p>Full control over infrastructure</p> Signup and view all the answers

    In SaaS, what is primarily responsible for ensuring data security?

    <p>The cloud service provider assuming all security responsibilities</p> Signup and view all the answers

    Which of the following is true about the actors in a sensor-cloud?

    <p>All actors have specific roles in managing and utilizing sensor data</p> Signup and view all the answers

    What overarching benefit does using Software-as-a-Service provide to organizations?

    <p>Reduced operational cost and maintenance overhead</p> Signup and view all the answers

    What is one significant advantage of the Subscription Model associated with SaaS?

    <p>It allows customers to easily scale based on usage.</p> Signup and view all the answers

    Which of the following is NOT considered an objective of Data Security?

    <p>Performance optimization</p> Signup and view all the answers

    Study Notes

    NPTEL Online Certification Courses

    • Course: Introduction to Internet of Things
    • Assignment Type: MCQ/MSQ
    • Total Marks: Varying per assignment, 10-15 per week.

    Week 0

    • QUESTION 1: RFID is used to identify objects and extract information.
    • QUESTION 2: Zigbee consists of 4 layers (Physical, Medium Access Control, Network, and Application).
    • QUESTION 3: Local Servers are not a component of cloud computing.

    Week 1

    • QUESTION 1: IoT stands for Internet of Things.
    • QUESTION 2: High-power embedded systems, supercomputing, engine technology are not technologies that have combined to result in the evolution of IoT.
    • QUESTION 3: RFID, Nanotechnology, and Sensors are enables of IoT.
    • QUESTION 4: Connects IoT LAN to a WAN
    • QUESTION 5: ITU vision is approaching reality as the present-day networked devices have outnumbered the number of humans on Earth.
    • QUESTION 6: In Multi-homing, a node/network is connected to multiple networks for improved reliability (True).
    • QUESTION 7: Gateway features include; router connecting IoT LAN and WAN to the internet, can implement several LAN and WAN, forword packets between LAN and WAN on the IP layer.
    • QUESTION 8: IoT Proxy performs active application layer functions between IoT nodes and other entities (True).
    • QUESTION 9: The Gateway has a unique address prefix.
    • QUESTION 10: IPv4 notation uses 32 bits to represent an address.
    • QUESTION 11: The Destination Address field in the IPv4 header is 32 bits long.
    • QUESTION 12: Sensors can be used to sense temperature.
    • QUESTION 13: A sensor does not influence the measured property (False).
    • QUESTION 14: Based on the output, sensors are classified as Analog and Digital.
    • QUESTION 15: The full form of SMP is Shape Memory Polymers.

    Week 2

    • QUESTION 1: MQTT is a Data Protocol.

    • QUESTION 2: MQTT is a Publish-Subscribe protocol.

    • QUESTION 3: A Broker controls the publish-subscribe messaging pattern in MQTT.

    • QUESTION 4: In MQTT, the Publishers are Lightweight Sensors (True).

    • QUESTION 5: MQTT is designed for Remote connections, Limited bandwidth, and Small code footprint.

    • QUESTION 6: The Topic, Message Broker to which a client is subscribed is updated in the form of messages and distributed.

    • QUESTION 7: There are 5 methods in MQTT protocol.

    • QUESTION 8: Publish/Subscribe in MQTT is event-driven and enables messages to be pushed to clients (True).

    • QUESTION 9: SMQTT stands for Secure MQTT.

    • QUESTION 10: Similar to HTTP, CoAP utilizes GET, PUT, PUSH, and DELETE.

    • QUESTION 11: The CoAP protocol is asynchronous over a datagram-oriented transport protocol such as UDP (True).

    • QUESTION 12: M2M stands for Machine to Machine.

    • QUESTION 13: The basic unit of data in AMQP is a frame.

    • QUESTION 14: The OSI model has 7 layers (False).

    • QUESTION 15: The “Destination Address” in the IPv4 packet represents the destination node address of the packet.

    Week 3

    • QUESTION 1: Wireless HART is the latest release of Highway Addressable Remote Transducer protocol (True).

    • QUESTION 2: Wired HART doesn't have a network layer (True).

    • QUESTION 3: Wireless HART physical layer is derived from 802.15.4 protocol.

    • QUESTION 4: Wireless HART operates only in the 2.4 GHz ISM band.

    • QUESTION 5: Wireless HART employs 15 channels of the ISM band to increase reliability.

    • QUESTION 6: Channel blacklisting identifies channels consistently affected by interference and removes them from use (False).

    • QUESTION 7: Wireless HART incorporates Channel hopping and channel blacklisting to increase reliability and security of the network.

    • QUESTION 8: Wireless HART relies on Mesh Networking, and each device is primed to forward packets from every other device (True).

    • QUESTION 9: ZigBee does not feature channel hopping (True).

    • QUESTION 10: NFC is designed for use by devices within close proximity to each other.

    • QUESTION 11: NFC is of 2 types.

    • QUESTION 12: Smartphones are an example of active NFC devices (True)

    • QUESTION 13: Bluetooth technology is based on ad-hoc piconets.

    • QUESTION 14: The Link Manager Protocol in Bluetooth manages the establishment, authentication, link configuration (True)

    • QUESTION 15 Zigbee commonly uses 250 kbps data rate.

    Week 4

    • QUESTION 1: Coverage in WSN is defined as the entire area covered satisfactorily (False).

    • QUESTION 2: In Wireless Sensor Network coverage, deployment of sensors to strategically cover monitoring area (True).

    • QUESTION 3: The water reservoir monitoring in WSNs uses event-driven reporting.

    • QUESTION 4: Objective of coverage in WSN is to use minimum number of sensors and minimize network lifetime (False).

    • QUESTION 5: Sensor nodes in WSNs can be static or mobile (True).

    • QUESTION 6: An inventory control system is an example of on-demand reporting.

    • QUESTION 7: Most problems in static WSNs are classified as area, point, and barrier coverage (Both a and b).

    • QUESTION 8: Disadvantages of stationary WSNs are node failure resulting in network partition and topology cannot be changed automatically (Both a and b).

    • QUESTION 9: MANET-infrastructure-less network of mobile devices follow self-HOP properties (True).

    • QUESTION 10: In mobile WSNs, Data Mules collect data from sensor nodes and transfer to sink (Both a and b).

    • QUESTION 11: UAVs use mesh and star network topologies.

    • QUESTION 12: M2M Application Platform provides integrated services.

    Weeks 5 & 6

    • QUESTION 1 Python is popular in embedded application development because it's a lightweight programming language (True)

    • QUESTION 2 Python does not support strict rules for syntax (True).

    • QUESTION 3 IDE is a software that is used to write codes , integrate several modules and libraries.

    • QUESTION 4 To indicate different blocks of code, Python uses rigid indentation (True).

    • QUESTION 5 The output of the print statement is Hi, Welcome to python.

    • QUESTION 6 Read, Write, Append and Both read and write modes are all modes available to open a file in Python

    • QUESTION 7 The command to install PIL is sudo pip install pillow (Incorrect)

    • QUESTION 8 There are 5 data types in Python.

    • QUESTION 9 The controlling statement structure is Invalid.

    • QUESTION 10 Raspberry Pi can be configured as a Web Server (True).

    • QUESTION 11 Raspberry Pi Zero CPU frequency is 1GHz.

    • QUESTION 12 sudo apt-get install python-rpi.gpio installs the Raspberry Pi GPIO library.

    • QUESTION 13 Ctrl + X exits the nano editor.

    • QUESTION 14 GPIO.output(11,True) turns on GPIO Pin 11

    • QUESTION 15 raspistill -o image.jpg captures a still image.

    Week 7

    • QUESTION 1: Adafruit provides a library to work with DHT22 sensors (True).
    • QUESTION 2: Matplotlib is used for plotting data in 2D.

    Week 8

    • QUESTION 1 Network Virtualization abstracts physical resources from network services.

    • QUESTION 2 Exact match rules are useful in Elephant Flow.

    • QUESTION 3 Order-k Markov predictor uses previous location instances to predict the next location

    • QUESTION 4 Load Balancing is an important issue due to dynamic IoT network nature.

    • QUESTION 5 Grid Computing refers to heterogeneous computing nodes distributed over a wide area for tasks.

    • QUESTION 6 SaaS, PaaS and IaaS are all service models in cloud computing.

    • QUESTION 7 All three statements (I, II and III) are true statements about SaaS.

    • QUESTION 8 Ubiquitous means independent of device or location.

    • QUESTION 9 Platform-as-a-service provides platform for developers to create applications offered as services over the internet.

    • QUESTION 10 Dynamic scaling of infrastructure resources is related to scalability of cloud computing.

    • QUESTION 11 Software-as-a-Service supports pay-as-you-go model (False).

    • QUESTION 12 Host level security at PaaS and SaaS levels hides the host OS from end users and transforms security responsibilities to cloud providers (Both a and b)

    • QUESTION 13 Data security objectives include confidentiality, integrity and availability (All of the above).

    • QUESTION 14 CloudSim provides cloud environment (True).

    • QUESTION 15 GreenCloud monitors energy consumption and is an extension of NS2 (Neither a nor b)

    Week 9

    • QUESTION 1 Devstack is used to install OpenStack.
    • QUESTION 2 Cloud computing advantages include Elasticity, Pay-per-use and Self-Service

    Week 10

    • QUESTION 1 Smart city is an urban system.
    • QUESTION 2 Focus areas in smart parking lots are auto-routing of vehicles, auto-charging of vehicles and detection of slots in parking lots (All of these).
    • QUESTION 3 Smart health is low-cost, portable, effortless health monitoring and allows remote check-ups (Statements 1, 2 and 3).
    • QUESTION 4 Multi-sensor data fusion is the combination of information from multiple sensor sources.
    • QUESTION 5 The ensemble of decisions occurs at the decision level.
    • QUESTION 6 Smart parking reduces traffic congestion.
    • QUESTION 7 DLNA stands for Digital Living Network Alliance.
    • QUESTION 8 Sensing types include stationary and mobile (Both a and b)
    • QUESTION 9 Smart home infrastructure can include wireless and wired devices (False).
    • QUESTION 10 Zigbee layers include Physical, MAC and Network layers (All of these)
    • QUESTION 11 ICV development phases include 2G, 4G LTE and vehicles connected to cloud (All of these).
    • QUESTION 12 V2X is a distributed architecture.
    • QUESTION 13 Vehicles cannot be mobile in Ad-hoc domain of Vanets (False).
    • QUESTION 14 VANET domains include in-vehicle and ad-hoc (Both a and b).
    • QUESTION 15 ICV is based on Dedicated Short Range Communication.

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