Wireless Sensor Network Question & AnswersJuly 14, 2021 By admin This article lists 100+ Wireless Sensor Network MCQs for engineering students. All the Wireless Sensor Network Questions & Answers given below include a hint and wherever possible link to the relevant topic. This is helpful for the users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on the Wireless Sensor Network topic.Wireless Sensor Network is also represented as “WSN” and it is a group of dedicated sensors that are spatially dispersed to records, monitors physical environmental parameters, and organizes that data at a central location. WSN measures physical parameters such as temperature, pressure, wind, humidity, and many more. This network comprises base stations and nodes at different locations, that communicate wirelessly. WSN for radio communication can be implemented in 4 topologies namely – Star type topology, tree-type topology, and Mesh type topology.Depending on the physical environment, WSN is classified into 5 types namely underground type WSN, terrestrial type WSN, underwater type WSN, multimedia type WSN, and mobile type WSN. The advantage of WSN is to avoid the need for wiring, it is a flexible technology, and can be integrated on a large scale. 1). WSN stands for __________. Wireless sensor network Wired sensor network Wired sensor node Wireless sensor node HintWSN stands for Wireless Sensor Network.2). WSN are _________ dispersed. Spatially Specially Equivalently Uniquely HintWSN are spatially dispersed.3). Which of the following is the function of a dedicated sensor? Records and monitors physical condition of environment Organizes collected data at a location that is centralized Both a and b None of the above HintThe function of a dedicated sensor is that it records and monitors the physical condition of the environment and organizes collected data at a location that is centralized.4). WSN measures _________ physical parameter. Sound Temperature Pollution All the above HintWSN measures physical parameters like sound, temperature, pollution, humidity, etc.5). Does WSN measures wind parameters? Yes No Maybe HintYes, WSN measures wind parameters.6). WSN depends on ________ connectivity. Wireless Wired RF None of the above HintWSN depends on wireless connectivity.7). Data in WSN is transmitted by ________ connectivity. Wireless Wired Both a and b None of the above HintData in WSN is transmitted by wireless connectivity.8). WSN are spatially distributed _________ sensors. Autonomous sensors Dependent sensors Bi directional sensors None of the above HintWSN are spatially distributed autonomous sensors.9). The development of WSN was motivated from __________. Military Hospitals Schools Offices HintThe development of WSN was motivated by military-like surveillance and battlefield.10). Which of the following are the applications of WSN? Health monitoring Industrial process monitoring and control Military All the above HintThe applications of WSN are health monitoring, industrial process monitoring, and control, military.11). WSN is built with __________. Nodes Switches Wires Radio HintWSN is built with a large number of nodes.12). Are each node in WSN interconnected? Yes No Maybe HintYes. each node in WSN interconnected.13). The components of a sensor node is _________. Radio trans receiver Microcontroller An electronic circuit All the above HintThe components of a sensor node are a radio transceiver, microcontroller circuit, and electronic circuit.14). What is the purpose of radio transceiver in WSN? Receives the data Transits the data Both transmits and receives the data None of the above HintThe purpose of the transceiver in WSN is to transmit and receive the data from other nodes. Read more about Radio Transceiver.15). A radio transceiver in WSN contains which component internally? Antenna Wire Electrode None of the above HintA radio transceiver in WSN contains an antenna internally to communicate with external nodes.16). Electronic circuit interfaces with which of the following component’s in WSN? Sensors Energy sources Sensor and energy source None of the above HintThe electronic circuit that interfaces with sensor and energy source component’s in WSN. Read more about Sensors.17). The energy source used in WSN are __________. Battery Inverter Capacitor None of the above HintThe energy source used in WSN is a battery.18). Does the size of a sensor node vary? Yes No Maybe HintYes, the size of a sensor node varies.19). Which of the following constraints depend on the cost and size of the sensor in WSN? Energy Memory Speed All the above HintThe constraints that depend on the cost and size of the sensor in WSN are memory, speed, energy, and bandwidth.20). The cost of a sensor depends on ________ factors. Area Size Complexity of design All the above HintThe cost of a sensor depends on the complexity of design factors.21). A sensor network in WSN can be of _______ topology. Star Multi-hop wireless mesh Advanced multi-hop wireless mesh All the above HintA sensor network in WSN can be of multi-hop wireless mesh, advanced multi-hop wireless mesh, and star topology.22). A star network is implemented using _____ distribution paradigm in computer networks. Spoke hub Mesh Triangle None of the above HintA star network is implemented using the spoke hub distribution paradigm in computer networks.23). WMN in network topology stands for _________. Wireless mesh network Wired mesh network Wired mesh node Wireless mesh node HintWMN in network topology stands for a wireless mesh network.24). WMN is made up of ______ type of nodes. Radio UF IF None of the above HintWMN is made up of radio type of nodes.25). WMN can also be a form of _______ network. Wireless ad hoc Wired ad hoc Wireless None of the above HintWMN can also be a form of wireless ad hoc network.Wireless Sensor Network Interview Questions & Answers26). A wireless mesh network contains _______ components. Mesh clients Mesh routers Gateways All the above HintA wireless mesh network contains mesh clients, gateways, and mesh router components.27). The propagation technique in WSN between hops of network can be ________. Routing Flooding Connecting Both a and b HintThe propagation technique in WSN between hops of the network can be flooding and routing.28). A process that selects paths for traffic in a network is called _______. Routing Flooding Connecting Both a and b HintA process that selects paths for traffic in a network is called routing. Read more about Routing Algorithm.29). Routing is performed in _______ type of networks. Circuit-switched Public switched telephone network Computer network All the above HintRouting is performed in 3 types of networks namely computer network, public switched telephone network, and circuit-switched.30). PSTN in routing network stands for ________. Public switched telephone network Public serial telephone network Public serial telepathy network None of the above HintPSTN in routing network stands for the public switched telephone network.31). Which of the following are the power sources used in WSN? ReVibe energy Perpetuum Both a and b None of the above HintPower sources used in WSN are Perpetuum and ReVibe energy.32). Does WSN cope with if a node fails to function? Yes No Maybe HintYes, WSN copes, if a node fails to function.33). Does WSN scaled to large-scale deployment? Yes No Maybe HintYes, WSN scaled to large-scale deployment.34). Does WSN withstand in a harsh environment? Yes No Maybe HintYes, WSN can withstand in harsh environment.35). Does WSN withstand has cross-layer optimization? Yes No Maybe HintYes, WSN withstand has cross-layer optimization.36). Which of the following are the applications of cross-layer optimization? Scheduling Adaption Resource allocation All the above HintThe applications of cross-layer optimization are scheduling, adaption, and resource allocation.37). Which of the following are the characteristics of WSN? Heterogeneity Homogeneity Ease of use All the above HintThe characteristics of WSN are heterogeneity, homogeneity, and ease of use.38). How many problems exits in traditional WSN? 2 3 1 5 HintThere are 3 problems that exist in traditional WSN.39). Does the traditional layer approach of WSN have ability to adapt to environmental changes? Yes No Maybe HintNo, a traditional layer approach of WSN does not have the ability to adapt to environmental changes.40). Does the traditional layer approach of WSN applicable to wireless networks? Yes No Maybe HintNo, a traditional layer approach of WSN is not applicable to wireless networks.41). Can the traditional layer approach of WSN share different information among different layers? Yes No Maybe HintNo, the traditional layer approach of WSN doesn't share different information among different layers.42). Which type of layer can make optimal modulation to improve transmission performance in WSN? Cross layer Traditional layer Both a and b None of the above HintA cross-layer can make optimal modulation to improve transmission performance in WSN.43). A cross-layer in WSN improves ________ factors. QoS Data rate Energy efficiency All the above HintA cross-layer in WSN improves 3 factors namely, QoS, data rate, and energy efficiency.44). QoS in WSN stands for __________. Quality of service Quantity of service Quantity of software Quality of software HintQoS in WSN stands for the quality of service.45). _________ can be imagined as small computers. Sensor nodes Power source Data None of the above HintSensor nodes can be imagined as small computers.46). A sensor node with a processing unit has ______ computational power. Limited Minimum Maximum 0 HintA sensor node with a processing unit has limited computational power.47). A sensor node with a processing unit has _______ memory. Limited Minimum Maximum 0 HintA sensor node with a processing unit has limited memory.48). A sensor node with a processing unit has _______ sensors. Limited Minimum Maximum 0 HintA sensor node with a processing unit has limited sensors.49). A sensor node with a processing unit has ______ MEMS. Limited Minimum Maximum 0 HintA sensor node with a processing unit has limited MEMS,.50). MEMS stands for _________. Micro electro-mechanical systems Marco electro-mechanical systems Medium electro-mechanical systems None of the above HintMEMS stands for Micro Electro Mechanical Systems.Wireless Sensor Network Exam Questions & Answers51). Additional components of WSN are _________. ASICs RS232 USB All the above HintAdditional components of WSN are ASCIs, RS232, and USB.52). ASIC stands for __________. Application specific integrated circuit Apps specialized internal circuit Application solo integrated circuit Application specific internal circuit 53). ASIC is a _________. IC Board Chip Both a and c HintASIC is an IC chip.54). USB stands for _______. Universal serial bus Uni serial bus Universal step bus None of the above HintUSB stands for Universal serial bus.55). USB a _______ type device. Plug-in Wireless Wired None of the above HintUSB a plug-in type device.56). RS232 stands for _______. Recommended standard 232 Rational standard 232 Relational standard 232 None of the above HintRS232 stands for Recommended standard 232.57). RS232 follows _____ type of communication. Serial Parallel Concurrent Both b and c HintRS232 follows a serial type of communication.58). USB follows _____ type of communication. Serial Parallel Concurrent Both b and c HintUSB follows a serial type of communication.59). WSN communicates with _____ via gateway. LAN WAN Both a and b None of the above HintWSN communicates with LAN and WAN via a gateway.60). LAN stands for ________. Local area network Large area network Level area network None of the above HintLAN stands for Local Area Network. Read more about LAN.61). WAN stands for ________. Wide area network Wide-area node Wired area network None of the above HintWAN stands for wide area network.62). A wireless WAN is used for ______ power device. High Low 0 HintA wireless WAN is used for low-power device.63). A low-power wireless device is called _______. LPWAN WAN LAAN HintA low-power wireless device is called LPWAN.64). LPWAN stands for ________. Low power wide area network Large power wide area network Long power wide area network None of the above HintLPWAN stands for Low power wide area network.65). WSN uses ______ to address self-configuration issue. Algorithms Protocols Both a and b None of the above HintWSN uses protocols and algorithms to address the self-configuration issue.66). Lifetime maximization is represented as ______ ratio. Energy/power Power/energy Power Energy HintLifetime maximization is represented as the energy/power ratio.67). WSN uses _______ routing mechanism. LNDIR LND Tow way None of the above HintWSN uses the LNDIR routing mechanism.68). LNDIR stands for _______. Lightweight non increasing delivery latency interval routing Lightweight non increasing delivery latency interval routing Layered weight non-increasing delivery latency interval routing None of the above HintLNDIR stands for Lightweight nonincreasing delivery latency interval routing.69). Which of the following OS implemented in WSN? Tiny OS eCos uC/OS All the above HintThe OS implemented in WSN are Tiny OS, eCos, and uC/OS.70). OS stands for _________. Operating system Ozone standard Operating standard None of the above HintOS stands for operating system.71). eCos stands for _________. Embedded configurable OS Embedded communication OS Equal configurable OS None of the above HinteCos stands for Embedded configurable OS.72). uC/OS stands for ________. Micro controller OS Marco Controller OS Medium Controller OS None of the above HintuC/OS stands for microcontroller OS.73). uC/OS is a _________ OS. RTOS Non-RTOS Nano OS None of the above HintuC/OS is an RTOS.74). RTOS stands for ________. Real-time OS Reel time OS Ready time OS None of the above HintRTOS stands for Real-time OS.75). RTOS was designed by ________. J. Labrosse Henry Richard Bell HintRTOS was designed by J. Labrosse.76). RTOS was designed by J. Labrosse in _______ year. 1990 1991 1992 1998 HintRTOS was designed by J. Labrosse in 1991.77). RTOS was written in _______ programming language. C JAVA C# HTML HintRTOS was written in the C programming language.Wireless Sensor Network MCQs with Answers78). WATS stands for ________. Wide area tracking system Wireless area tracking system Wired area tracking system None of the above HintWATS stands for Wide-area tracking system.79). What is the purpose of WATS in WSN? Detects ground-based nuclear device Detects any device Detects frequency Detects data collision HintThe purpose of WATS in WSN is to detect ground-based nuclear devices.80). WATS was developed at _______ lab. Lawrence live more national lab Lawrence international lab Lawrence lives more international lab None of the above HintWATS was developed at Lawrence live more national lab.81). WATS is made up of ______ type sensors. Gamma Neutron Electron Both a and b HintWATS is made up of Gamma and Neutron-type sensors.82). WATS uses ________ algorithm. Bayesian statistics Distance vector Point to point None of the above HintWATS uses a Bayesian statistic algorithm.83). WSN in wine production is used for ______ purposes. Monitoring Calculate Detect None of the above HintWSN in wine production is used for monitoring purposes.84). WSN in water monitoring application monitors _______ of water. Quality Level Saves water wastage All the above HintWSN in water monitoring application monitors quality, level and saves water from being wasted.85). WSN in data logging ______ the data. Collects Monitors Distributes None of the above HintWSN in data logging collects the data.86). What is the advantage of WSN in loggers? Feed live data Feeds any data Reads data None of the above HintThe advantage of WSN in loggers is to feed live data.87). CBM stands for ________. Condition based maintenance Controlled based maintenance Condition based monitor Continuous based maintenance HintCBM stands for Condition based maintenance.88). CBM is used in ______ application of WSN. Health monitoring Data logging Statistic calculation None of the above HintCBM is used in the health monitoring application of WSN.89). WSN can be placed in ______ type location. Rotating machinery Untethered vehicles Both a and b None of the above HintWSN can be placed in untethered vehicles and rotating machinery-type locations.90). WSN uses _______ modeling for social simulation. Agent-based Client-based Both a and b None of the above HintWSN uses agent-based modeling for social simulation.91). Which of the following architecture of WSN possess weak security? Infrastructure less architecture Infrastructure architecture Infra -less architecture None of the above HintInfrastructure less architecture of WSN possesses weak security.92). Is security a big concern in WSN? Yes No Maybe HintYes, security a big concern in WSN.93). OGC stands for ________. Open geospatial consortium Open geo consortium Open gravity consortium None of the above HintOGC stands for Open geospatial consortium.94). Which process is used for safe communication in WSN? Encryption Decryption Both a and b None of the above HintBoth encryption and decryption process is used for safe communication in WSN.95). Encryption in WSN is used on _______ side. Transmitter Receiver Both a and b None of the above HintEncryption in WSN is used on the transmitter side.96). Decryption in WSN is used on _______ side. Transmitter Receiver Both a and b None of the above HintDecryption in WSN is used on the receiver side.97). Does the encryption and decryption process use key? Yes No Maybe HintYes, the Encryption and decryption process uses a key.98). Tree topology is also called as ________. Cascaded star Star Un-cascaded star None of the above HintTree topology is also called a cascaded star.99). The different types of WSN are _______. Terrestrial Underground Underwater All the above HintThe different types of WSN are terrestrial, underground, and underwater.100). The limitations of WSN are _______. Posses 8MHz Works on batteries Provides less storage space All the above HintThe limitations of WSN are posses 8MHz, works on batteries, and provides less storage space.101). What is the advantage of a wireless sensor network in industrial applications? Reduced deployment Flexibility in installing Moving and rotating equipment All of the above HintThe advantages of a wireless sensor network in the industry are reduced deployment, flexibility in installing, moving, and rotating equipment.102). What is the disadvantage of a wireless sensor network in industrial applications? Network delay Multipath fading Both a and b None HintThe disadvantages of a wireless sensor network in the industry are network delay and multipath fading.103). What is the advantage of wireless sensor network in precision agriculture? Large crop area monitoring Soil moisture Nutrition stress All of the above HintThe advantages of a wireless sensor network in precision agriculture are large crop monitoring, forest fire-prevention, and biomass studies.104). What is the disadvantage of a wireless sensor network in precision agriculture? Low battery life High hardware costs Limited bandwidth All of the above HintThe disadvantages of a wireless sensor network in precision agriculture are low battery life, high hardware costs, and limited bandwidth.105). What is the advantage of wireless sensor networks in health care? Monitoring in ambulatory setting Early detection of abnormal conditions Both a and b None HintThe advantages of a wireless sensor network in health care are monitoring in an ambulatory setting and early detection of abnormal conditions.106). What is the disadvantage of a wireless sensor network in health care? Cost maintenance Insecurity of patients Both a and b None HintThe disadvantages of a wireless sensor network in health care are cost maintenance and insecurity of patients.107). What is the advantage of wireless sensor networks in transportation? High accuracy Maintenance Flexibility All of the above HintThe advantages of wireless sensor networks in transportation are high accuracy, maintenance, and flexibility.108). What is the disadvantage of wireless sensor networks in transportation? Connectivity Cost Congestion All of the above HintThe disadvantages of wireless sensor networks in transportation are connectivity, cost, and congestion.109). What is the advantage of wireless sensor networks in environmental monitoring? Detect Forest fires Obtain changes in temperature Obtain changes in humidity All of the above HintThe advantages of a wireless sensor network in environment monitoring are, detecting forest fires, obtain the changes in temperature and humidity.110). What is the disadvantage of a wireless sensor network in environmental monitoring? Biofouling problem Data security Both a and b None HintThe disadvantages of a wireless sensor network in environmental monitoring are the biofouling problem in the marine environment and security of data. Time is Up! Time's up
