Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.

Which blocks deals with performance issues?(a) ESB(Enterprise Service Bus)(b) Service Broker(c) SOA registry(d) SOA supervisorThis question was posed to me during an interview for a job.My question is from SOA Based Architecture in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct answer is (d) SOA supervisor

Explanation: SOA supervisor is a TRAFFIC cop ENSURING do not having issues. It deals with performance issues of the system so that appropriate service levels are met. If any of the services have performance problems it sends MESSAGES to the proper INFRASTRUCTURE to fix the ISSUE.

2.

_________ is uniquely identifiable embedded computing devices.(a) Internet(b) IoT(c) Bigdata(d) CloudThe question was asked in unit test.My doubt is from API Based Architecture topic in portion IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct CHOICE is (B) IoT

To elaborate: The IoT is the part of the Internet that is made up of “UNIQUELY identified embedded computing DEVICES,” as Wikipedia status. Just LIKE the world Wide Web is a Internet, so does the IoT.

3.

_________ Services are the way in which the IoT is connected to data.(a) Cloud(b) Bigdata(c) Internet(d) NetworkThis question was posed to me in a national level competition.Query is from API Based Architecture in portion IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct ANSWER is (a) CLOUD

For EXPLANATION I would say: Cloud based services are the way in which the IoT is connected to data. Just LIKE WORLD Wide Web runs over the Internet, so does the IoT.

4.

_________ provides a middleware and application container for IoT gateway.(a) Eclipse Kura(b) Red Hat(c) Intercloud(d) Bot 2 BotThis question was addressed to me during a job interview.This interesting question is from Open IoT Architecture in section IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right OPTION is (a) ECLIPSE Kura

For explanation: Eclipse Kura provides a general purpose middleware and application container for IoT GATEWAY services and INCLUDES everything for the edge, such as an application container or runtime ENVIRONMENT.

5.

___________ is a community that is working together to establish an IoT architecture.(a) Eclipse IoT(b) Red Hat(c) Intercloud(d) Bot 2 BotThis question was addressed to me in exam.This intriguing question originated from Open IoT Architecture in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct answer is (a) ECLIPSE IoT

Explanation: Eclipse IoT is a community that is working together to establish an IoT ARCHITECTURE BASED on open source TECHNOLOGIES and standards.

6.

Which environment does Global Sensor Network work on?(a) C++(b) JAVA(c) HTML(d) CI got this question during an interview for a job.My question comes from Open IoT Architecture topic in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right ANSWER is (B) JAVA

To explain: GSN is expected to work in all standard computing environments. As Java is portable in nature which means that Java bytecode can execute on all platforms, GSN works on Java. C++, HTML and C are not portable in nature.

7.

API architecture not only includes critical elements but also caters for _________(a) System(b) Devices(c) Network(d) Multi homingI had been asked this question by my school teacher while I was bunking the class.My query is from API Based Architecture topic in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct choice is (d) Multi homing

To EXPLAIN: API architecture not only includes critical elements but also CATERS for multi homing, MOBILE networks with dynamic membership, and third party PERSISTENT storage based on indirection.

8.

What happens when service providers change their operating system and communication protocols?(a) Inoperability and complexity arises(b) Only complexity arises(c) Only Inoperability arises(d) Nothing arisesI have been asked this question in exam.My doubt is from SOA Based Architecture topic in portion IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right option is (a) Inoperability and COMPLEXITY arises

Best explanation: Complexity arises when service providers change their operating system and communication protocols, which results in inoperability. Service providers use STANDARD protocols and conventional interfaces to facilitate information among DIVERSE services.

9.

The SOA architecture is divided into how many layers?(a) 5 layers(b) 2 layers(c) 7 layers(d) no layers ie., only one layerThe question was posed to me during an online interview.My question is from SOA Based Architecture topic in portion IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct CHOICE is (b) 2 layers

Explanation: The first which has direct relevance to the BUSINESS as it carries out business functions. The SECOND layer is the technical layer which talks about managing COMPUTER resources like a database, WEB server etc.

10.

Which standard is preferable to achieve SOA?(a) Software service(b) Business service(c) Network service(d) Web serviceThis question was addressed to me by my college professor while I was bunking the class.This key question is from SOA Based Architecture in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct option is (d) Web SERVICE

The best explanation: In SOA we need services to be loosely COUPLED. A web service COMMUNICATES USING the SOAP protocol which is XML BASED, Which is very loosely coupled.

11.

Internet of Things needs a lot of network connection. What is the proposed “white Space” radio standard called?(a) Bluetooth(b) WiMax(c) Weightless(d) ZigbeeThe question was asked in my homework.Query is from Open IoT Architecture in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct answer is (C) Weightless

The best explanation: White space is nothing but gaps that sit in the frequency band USED to broadcast digital TV. The DEVELOPMENT of so called “Weightless standard” is for the use of TV white space and for IOT/M2M purpose. The main intention is to reduce the cost and POWER utilization.

12.

Kapua also provides a core integration framework.(a) True(b) FalseThe question was posed to me in an international level competition.I want to ask this question from Open IoT Architecture topic in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

The correct option is (a) True

To ELABORATE: Kapua also provides a core integration framework and an initial SET of core IoT services, including a device registry, and application ENABLEMENT.

13.

All portals are embedded into a single supercomputer, known as _________(a) Network(b) Web(c) Internet(d) SystemThe question was posed to me in a national level competition.Origin of the question is API Based Architecture in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct OPTION is (b) WEB

To explain: The web is now one, ENORMOUS, GLOBAL COMPUTER. Our devices are them phones, tablets, TVS, watches, glasses, etc. These all are all portals into this single computer, known as Web.

14.

Open IoT manages the registration, data acquisition, deployment of sensors and interconnected of objects, through which network?(a) GSN(b) X-GSN(c) LSM(d) HTTPThis question was posed to me in an internship interview.My question comes from Open IoT Architecture topic in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right choice is (b) X-GSN

To explain I WOULD say: The core fundamental CONCEPT in X-GSN is the virtual sensor, which can represent not only PHYSICAL devices but in GENERAL any abstract or CONCRETE entity that observes features of any kind.

15.

Which block ties work flow and SOA registry?(a) ESB(Enterprise Service Bus)(b) Service Broker(c) Accounting package(d) SOA supervisorI had been asked this question in quiz.My question is from SOA Based Architecture topic in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct option is (b) SERVICE BROKER

For explanation I would SAY: Service broker reads the work flow and takes services from the SOA registry and ties them TOGETHER. Service brokers are normally middleware LIKE EAI(Enterprise Application Integration) products.

16.

________ are a modern interpretation of service oriented architectures used to build distributed software systems.(a) SOA(b) API(c) Microservices(d) Web 2.0This question was addressed to me in unit test.I'd like to ask this question from SOA Based Architecture in section IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right choice is (c) Microservices

To explain I WOULD SAY: Microservices is a modern INTERPRETATION of service oriented ARCHITECTURES used to build distributed SOFTWARE systems. Services in the microservice architecture are processes.

17.

SOA stands for _____________(a) Solution Oriented Architecture(b) Sector Oriented Architecture(c) Service Oriented Architecture(d) Source Oriented ArchitectureI have been asked this question in quiz.This interesting question is from SOA Based Architecture topic in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

The correct CHOICE is (c) Service Oriented Architecture

Explanation: Service Oriented Architecture (SOA) approach TRADITIONALLY used to couple functionality of HEAVYWEIGHT corporate IT systems, are BECOMING application to embedded real world DEVICES.

18.

Most IoT problems are addressed at _________ layer(a) TCP(b) IP(c) API(d) UDPI have been asked this question during an interview for a job.The doubt is from API Based Architecture in portion IoT Ecosystem Concepts and Architecture of IOT

Answer» CORRECT ANSWER is (c) API

Easiest explanation: As more and more DEVICES are connected to the net, however, CERTAIN recurring problems must be solved. These problems are addressed at the API LAYER.
19.

APIs are the skybridge.(a) True(b) FalseI have been asked this question in an interview for job.My question comes from API Based Architecture topic in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct choice is (a) True

For EXPLANATION: APIS are the skybridge – IoT on one side, useful information and plentiful DATA crunching capabilities on the other. APIs make IoT useful, turning limited little things into POWERFUL portals of possibilities.

20.

What are the three terminologies on which SOA service stands__________(a) Contract, Address and Building(b) Contract, Address and Service(c) Service, Contract and Building(d) Service, Building and AddressI got this question in class test.This interesting question is from SOA Based Architecture in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right option is (a) CONTRACT, Address and Building

Explanation: Contract-It describes parameters and return VALUES for a method.

Address-It is a URL which points to the LOCATION of the service.

Building-It DETERMINES how the COMMUNICATION is done.

21.

Open IoT ontology is extending the W3C SSN ontology which supports the description of the physical and processing structure of sensors.(a) True(b) FalseThe question was asked by my school teacher while I was bunking the class.The origin of the question is Open IoT Architecture topic in portion IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct choice is (a) True

The EXPLANATION: Sensors are not constrained to physical SENSING devices, rather a sensor is ANYTHING that can CALCULATE the value of the phenomenon. Thus, either a DEVICE or Computational process or a combination of them could play the role of a sensor.

22.

_________ an open source stack for gateways and the edge.(a) Eclipse Kapua(b) Red Hat(c) Intercloud(d) Eclipse KuraI have been asked this question during an interview.My doubt is from Open IoT Architecture topic in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

The correct choice is (d) Eclipse KURA

The EXPLANATION: Eclipse Kura, an open source stack for gateways and edge, and Eclipse KAPUA, the first open source IOT cloud platform.

23.

Global Sensor Network is built for _________(a) Reducing cost and time for development(b) Reducing cost and increasing time for development(c) Increasing cost and increasing time for development(d) Increasing cost and decreasing time for developmentI have been asked this question in an internship interview.This intriguing question comes from Open IoT Architecture in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right option is (a) Reducing cost and time for development

To explain I would say: GSN is developed on the OBSERVATION that most of the requirements for the application development SENSOR network are same. Having each sensor network development using its own custom SOFTWARE not only increases the cost but ALSO takes time for development and deployment.

24.

API enables services portability between ____________(a) Systems(b) Devices(c) Networks(d) ServicesThe question was asked during an online exam.I want to ask this question from API Based Architecture topic in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer» CORRECT choice is (a) Systems

Best explanation: API enables services portability between sysyems, I.e., SERVICE MAY be allocated to end-systems or servers, with possible relocation and replication throughout its LIFECYCLE.
25.

Are SOA components loosely coupled.(a) True(b) FalseI got this question in quiz.This is a very interesting question from SOA Based Architecture topic in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right ANSWER is (a) True

Best explanation: They are LOOSELY coupled. That means every service is self-contained and EXISTS ALONE LOGICALLY.

26.

Which is the core wrapper of GSN?(a) Serial(b) UDP(c) GPSTest(d) ZeroMQWrapperI got this question in unit test.This intriguing question originated from Open IoT Architecture in section IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right CHOICE is (d) ZeroMQWrapper

Easiest explanation: WRAPPERS are classified as remote and local wrappers in GSN. Unlike them, the ZeroMQWrapper is a core wrapper which allows for publishing stream ELEMENTS that are produced by a Virtual SENSOR.

27.

The number of elements in the Open IoT Architecture?(a) 6 elements(b) 8 elements(c) 7 elements(d) 3 elementsThis question was posed to me in semester exam.Asked question is from Open IoT Architecture topic in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct choice is (c) 7 elements

Explanation: The 7 main elements are : sensor middleware (X-GSN), CLOUD DATA STORAGE, scheduler, service delivery and utility manager, request definition, request PRESENTATION, configuration and monitoring.

28.

In SOA, Service is termed as __________(a) Software service(b) Network service(c) Business service(d) Developer serviceThis question was posed to me in an interview.Question is from SOA Based Architecture in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

The CORRECT answer is (C) BUSINESS service

Best explanation: Services are termed as business services. They are self-contained and logical.

29.

Web is a mesh of computers, so too is _________(a) IoT(b) Bigdata(c) Cloud(d) InternetThis question was addressed to me during an interview.I need to ask this question from API Based Architecture in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer» RIGHT CHOICE is (a) IoT

Best explanation: Just LIKE the World WIDE Web runs over the Internet, so does the IoT. Similarly to how the Web is a mesh of COMPUTERS, so too is the IoT.
30.

Which block is the central reference of meta-data for services?(a) ESB(Enterprise Service Bus)(b) Service Broker(c) SOA registry(d) SOA supervisorThe question was posed to me during an online exam.My question comes from SOA Based Architecture topic in section IoT Ecosystem Concepts and Architecture of IOT

Answer» CORRECT option is (c) SOA registry

To explain I would SAY: SOA registry is like a reference database of SERVICES. It describes what each service does, where they are located, and how they can communicate.
31.

Services in a microservice architecture are _________ that communicates with each other over the network.(a) Microservices(b) SOA(c) API(d) ProcessesI had been asked this question in quiz.My question comes from SOA Based Architecture topic in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

The correct choice is (d) PROCESSES

The best explanation: Services in the microservice architecture are processes that communicate with each other over the network in ORDER to fulfill a goal. These services USE technology agnostic protocols.

32.

IoT-A reference model is a _________(a) Scalable(b) Secure(c) Both scalable and secure(d) Neither scalable nor secureThe question was posed to me during an online exam.My query is from API Based Architecture in section IoT Ecosystem Concepts and Architecture of IOT

Answer»

The correct choice is (c) Both scalable and SECURE

The EXPLANATION is: IoT-A architectural reference MODEL is a scalable and secure solution INTENDED to guide the design of protocols, interface and algorithms necessary to scale the IoT.

33.

Is APIs are glue?(a) True(b) FalseThis question was posed to me by my school principal while I was bunking the class.Enquiry is from API Based Architecture in division IoT Ecosystem Concepts and Architecture of IOT

Answer» CORRECT option is (a) True

The best I can explain: JavaWorld’s Andrew Oliver calls APIs “the glue and INTERESTING PART where the INTERNET of Things starts to become useful and more than a BUZZWORD.”
34.

The huge number of devices connected to the Internet of Things has to communicate automatically, not via humans. What is this called?(a) Skynet(b) Bot 2 Bot(c) Machine 2 Machine(d) IntercloudThe question was asked during an interview.This key question is from Open IoT Architecture topic in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right OPTION is (c) Machine 2 Machine

The best I can explain: Devices are connected to other devices like mobiles, laptops, etc, to communicate AMONG themselves which is called machine to machine and that involves wireless communication TECHNIQUES, serial CONNECTION and powerline connection.

35.

_________ are the inter connectors.(a) Web(b) Internet(c) Network(d) APIsThe question was asked in an online quiz.My doubt is from API Based Architecture topic in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct OPTION is (d) APIS

The best explanation: APIs are the INTER connector which provides the INTERFACE between the INTERNET and Things.

36.

________ is the philosophy of encapsulating application logic in services.(a) API(b) SOA(c) Both SOA and API(d) Neither SOA and APIThis question was posed to me in an interview for internship.My doubt stems from SOA Based Architecture in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

The correct option is (b) SOA

Best explanation: SOA is the philosophy of encapsulating application logic in SERVICES with a UNIFORMLY defined INTERFACE and MAKING these publicly available via DISCOVERY mechanisms.

37.

Without _________ computers embedded in house keys are worthless.(a) Data(b) Services(c) Both Data and Services(d) Neither data nor servicesI have been asked this question in unit test.My enquiry is from API Based Architecture in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

The correct option is (c) Both Data and Services

For explanation I would say: Without data and services, the LITTLE computers EMBEDDED in thermostat, house KEYS, baby monitors, trash CANS, fire extinguishers, and STORE shelve are nearly worthless.

38.

________ is used to describe a perceived, quickly growing set of web based applications.(a) Web 4.0(b) Web 3.5(c) Web 2.0(d) Web 4.5I got this question by my college professor while I was bunking the class.I would like to ask this question from SOA Based Architecture topic in section IoT Ecosystem Concepts and Architecture of IOT

Answer» CORRECT option is (c) Web 2.0

Best EXPLANATION: Web 2.0 to describe a perceived, quickly growing set of web based applications. A TOPIC that has experienced extensive coverage INVOLVES the relationship between Web 2.0 and service oriented architectures.
39.

What is the sensor/protocol used in GSN?(a) HTTP protocol(b) CoAP protocol(c) MQTT protocol(d) XMPP protocolThe question was asked during an interview.My doubt is from Open IoT Architecture topic in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

The correct choice is (b) CoAP protocol

Easy explanation: Constrained Application Protocol is a specialized web transfer protocol which ENABLES constrained DEVICES to communicate over internet and it is REQUIRED for GSN in transferring data STREAM.

40.

One of the main characteristics of Linked Stream Data is “Live Streaming”.(a) True(b) FalseThe question was posed to me in exam.My question is from Open IoT Architecture topic in section IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct choice is (a) True

Explanation: Most of the data on the web is from SENSING devices. To facilitate the integration of data from SENSED devices and other sources, both sensor stream source and data are being ENRICHED with schematic descriptions, creating LINKED Stream Data. It shows the live data depending on our application.

41.

IoT-A stands for ________(a) Internet of Things Address(b) Internet of Things Architecture(c) Internet of Things Area(d) Industrial of things ArchitectureI got this question in an interview for internship.Asked question is from API Based Architecture in chapter IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct answer is (b) Internet of Things ARCHITECTURE

The best I can EXPLAIN: The EU’s Internet of Things Architecture is another EXAMPLE of the way in which we can solve IoT related CHALLENGES.

42.

IoT solutions are at the heart of IDC’s view of the _________(a) Three(b) Two(c) One(d) FourThis question was posed to me in quiz.Origin of the question is API Based Architecture topic in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

The correct choice is (d) Four

The explanation is: IoT solutions are at the heart of IDC’s view of the four PILLARS:

Mobility

Social business

Big data

Cloud

Resulting in the MILLIONS of applications AVAILABLE to the billions at the end point.

43.

Ubiquitous service provision depends on _________(a) QoS(b) Management(c) Interoperability(d) RoutingThis question was posed to me by my school principal while I was bunking the class.My question is based upon API Based Architecture topic in portion IoT Ecosystem Concepts and Architecture of IOT

Answer»

Right choice is (c) INTEROPERABILITY

Explanation: Ubiquitous service provision depends on interoperability, not only for provisioning of a standard QoS controlled IP bearer, but also for CROSS domain naming, SECURITY, MOBILITY, multicast, including fair COMPENSATION for utility provisioning.

44.

Which layer in SOA delivers messages between applications?(a) ESB(Enterprise Service Bus)(b) Service Broker(c) SOA registry(d) SOA supervisorI got this question in final exam.The doubt is from SOA Based Architecture in portion IoT Ecosystem Concepts and Architecture of IOT

Answer»

Correct choice is (a) ESB(Enterprise Service Bus)

Easy explanation: ESB is a GROUP of components/ software which helps us to SEND and receive MESSAGES between the disparate applications. It is usually SHOWN as a huge plump pipe in the architecture.

45.

_________ is a modular and cloud based platform.(a) Eclipse Kura(b) Red Hat(c) Intercloud(d) Eclipse KapuaThe question was posed to me in semester exam.The above asked question is from Open IoT Architecture topic in division IoT Ecosystem Concepts and Architecture of IOT

Answer»

The correct choice is (d) Eclipse KAPUA

Easy explanation: Eclipse Kapua is a module and cloud BASED platform that provides services required for REAL time data management and analytics.