Wireless Sensor Network Question & Answers July 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 None Hint 2). WSN are _________ dispersed. Spatially Specially Equivalently Uniquely None Hint 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 None Hint 4). WSN measures _________ physical parameter. Sound Temperature Pollution All the above None Hint 5). Does WSN measures wind parameters? Yes No Maybe None Hint 6). WSN depends on ________ connectivity. Wireless Wired RF None of the above None Hint 7). Data in WSN is transmitted by ________ connectivity. Wireless Wired Both a and b None of the above None Hint 8). WSN are spatially distributed _________ sensors. Autonomous sensors Dependent sensors Bi directional sensors None of the above None Hint 9). The development of WSN was motivated from __________. Military Hospitals Schools Offices None Hint 10). Which of the following are the applications of WSN? Health monitoring Industrial process monitoring and control Military All the above None Hint 11). WSN is built with __________. Nodes Switches Wires Radio None Hint 12). Are each node in WSN interconnected? Yes No Maybe None Hint 13). The components of a sensor node is _________. Radio trans receiver Microcontroller An electronic circuit All the above None Hint 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 None Hint Read more about Radio Transceiver. 15). A radio transceiver in WSN contains which component internally? Antenna Wire Electrode None of the above None Hint 16). Electronic circuit interfaces with which of the following component’s in WSN? Sensors Energy sources Sensor and energy source None of the above None Hint Read more about Sensors. 17). The energy source used in WSN are __________. Battery Inverter Capacitor None of the above None Hint 18). Does the size of a sensor node vary? Yes No Maybe None Hint 19). Which of the following constraints depend on the cost and size of the sensor in WSN? Energy Memory Speed All the above None Hint 20). The cost of a sensor depends on ________ factors. Area Size Complexity of design All the above None Hint 21). A sensor network in WSN can be of _______ topology. Star Multi-hop wireless mesh Advanced multi-hop wireless mesh All the above None Hint 22). A star network is implemented using _____ distribution paradigm in computer networks. Spoke hub Mesh Triangle None of the above None Hint 23). WMN in network topology stands for _________. Wireless mesh network Wired mesh network Wired mesh node Wireless mesh node None Hint 24). WMN is made up of ______ type of nodes. Radio UF IF None of the above None Hint 25). WMN can also be a form of _______ network. Wireless ad hoc Wired ad hoc Wireless None of the above None Hint Wireless Sensor Network Interview Questions & Answers 26). A wireless mesh network contains _______ components. Mesh clients Mesh routers Gateways All the above None Hint 27). The propagation technique in WSN between hops of network can be ________. Routing Flooding Connecting Both a and b None Hint 28). A process that selects paths for traffic in a network is called _______. Routing Flooding Connecting Both a and b None Hint Read more about Routing Algorithm. 29). Routing is performed in _______ type of networks. Circuit-switched Public switched telephone network Computer network All the above None Hint 30). PSTN in routing network stands for ________. Public switched telephone network Public serial telephone network Public serial telepathy network None of the above None Hint 31). Which of the following are the power sources used in WSN? ReVibe energy Perpetuum Both a and b None of the above None Hint 32). Does WSN cope with if a node fails to function? Yes No Maybe None Hint 33). Does WSN scaled to large-scale deployment? Yes No Maybe None Hint 34). Does WSN withstand in a harsh environment? Yes No Maybe None Hint 35). Does WSN withstand has cross-layer optimization? Yes No Maybe None Hint 36). Which of the following are the applications of cross-layer optimization? Scheduling Adaption Resource allocation All the above None Hint 37). Which of the following are the characteristics of WSN? Heterogeneity Homogeneity Ease of use All the above None Hint 38). How many problems exits in traditional WSN? 2 3 1 5 None Hint 39). Does the traditional layer approach of WSN have ability to adapt to environmental changes? Yes No Maybe None Hint 40). Does the traditional layer approach of WSN applicable to wireless networks? Yes No Maybe None Hint 41). Can the traditional layer approach of WSN share different information among different layers? Yes No Maybe None Hint 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 None Hint 43). A cross-layer in WSN improves ________ factors. QoS Data rate Energy efficiency All the above None Hint 44). QoS in WSN stands for __________. Quality of service Quantity of service Quantity of software Quality of software None Hint 45). _________ can be imagined as small computers. Sensor nodes Power source Data None of the above None Hint 46). A sensor node with a processing unit has ______ computational power. Limited Minimum Maximum 0 None Hint 47). A sensor node with a processing unit has _______ memory. Limited Minimum Maximum 0 None Hint 48). A sensor node with a processing unit has _______ sensors. Limited Minimum Maximum 0 None Hint 49). A sensor node with a processing unit has ______ MEMS. Limited Minimum Maximum 0 None Hint 50). MEMS stands for _________. Micro electro-mechanical systems Marco electro-mechanical systems Medium electro-mechanical systems None of the above None Hint Wireless Sensor Network Exam Questions & Answers 51). Additional components of WSN are _________. ASICs RS232 USB All the above None Hint 52). ASIC stands for __________. Application specific integrated circuit Apps specialized internal circuit Application solo integrated circuit Application specific internal circuit None 53). ASIC is a _________. IC Board Chip Both a and c None Hint 54). USB stands for _______. Universal serial bus Uni serial bus Universal step bus None of the above None Hint 55). USB a _______ type device. Plug-in Wireless Wired None of the above None Hint 56). RS232 stands for _______. Recommended standard 232 Rational standard 232 Relational standard 232 None of the above None Hint 57). RS232 follows _____ type of communication. Serial Parallel Concurrent Both b and c None Hint 58). USB follows _____ type of communication. Serial Parallel Concurrent Both b and c None Hint 59). WSN communicates with _____ via gateway. LAN WAN Both a and b None of the above None Hint 60). LAN stands for ________. Local area network Large area network Level area network None of the above None Hint Read more about LAN. 61). WAN stands for ________. Wide area network Wide-area node Wired area network None of the above None Hint 62). A wireless WAN is used for ______ power device. High Low 0 None Hint 63). A low-power wireless device is called _______. LPWAN WAN LAAN None Hint 64). LPWAN stands for ________. Low power wide area network Large power wide area network Long power wide area network None of the above None Hint 65). WSN uses ______ to address self-configuration issue. Algorithms Protocols Both a and b None of the above None Hint 66). Lifetime maximization is represented as ______ ratio. Energy/power Power/energy Power Energy None Hint 67). WSN uses _______ routing mechanism. LNDIR LND Tow way None of the above None Hint 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 None Hint 69). Which of the following OS implemented in WSN? Tiny OS eCos uC/OS All the above None Hint 70). OS stands for _________. Operating system Ozone standard Operating standard None of the above None Hint 71). eCos stands for _________. Embedded configurable OS Embedded communication OS Equal configurable OS None of the above None Hint 72). uC/OS stands for ________. Micro controller OS Marco Controller OS Medium Controller OS None of the above None Hint 73). uC/OS is a _________ OS. RTOS Non-RTOS Nano OS None of the above None Hint 74). RTOS stands for ________. Real-time OS Reel time OS Ready time OS None of the above None Hint 75). RTOS was designed by ________. J. Labrosse Henry Richard Bell None Hint 76). RTOS was designed by J. Labrosse in _______ year. 1990 1991 1992 1998 None Hint 77). RTOS was written in _______ programming language. C JAVA C# HTML None Hint Wireless Sensor Network MCQs with Answers 78). WATS stands for ________. Wide area tracking system Wireless area tracking system Wired area tracking system None of the above None Hint 79). What is the purpose of WATS in WSN? Detects ground-based nuclear device Detects any device Detects frequency Detects data collision None Hint 80). WATS was developed at _______ lab. Lawrence live more national lab Lawrence international lab Lawrence lives more international lab None of the above None Hint 81). WATS is made up of ______ type sensors. Gamma Neutron Electron Both a and b None Hint 82). WATS uses ________ algorithm. Bayesian statistics Distance vector Point to point None of the above None Hint 83). WSN in wine production is used for ______ purposes. Monitoring Calculate Detect None of the above None Hint 84). WSN in water monitoring application monitors _______ of water. Quality Level Saves water wastage All the above None Hint 85). WSN in data logging ______ the data. Collects Monitors Distributes None of the above None Hint 86). What is the advantage of WSN in loggers? Feed live data Feeds any data Reads data None of the above None Hint 87). CBM stands for ________. Condition based maintenance Controlled based maintenance Condition based monitor Continuous based maintenance None Hint 88). CBM is used in ______ application of WSN. Health monitoring Data logging Statistic calculation None of the above None Hint 89). WSN can be placed in ______ type location. Rotating machinery Untethered vehicles Both a and b None of the above None Hint 90). WSN uses _______ modeling for social simulation. Agent-based Client-based Both a and b None of the above None Hint 91). Which of the following architecture of WSN possess weak security? Infrastructure less architecture Infrastructure architecture Infra -less architecture None of the above None Hint 92). Is security a big concern in WSN? Yes No Maybe None Hint 93). OGC stands for ________. Open geospatial consortium Open geo consortium Open gravity consortium None of the above None Hint 94). Which process is used for safe communication in WSN? Encryption Decryption Both a and b None of the above None Hint 95). Encryption in WSN is used on _______ side. Transmitter Receiver Both a and b None of the above None Hint 96). Decryption in WSN is used on _______ side. Transmitter Receiver Both a and b None of the above None Hint 97). Does the encryption and decryption process use key? Yes No Maybe None Hint 98). Tree topology is also called as ________. Cascaded star Star Un-cascaded star None of the above None Hint 99). The different types of WSN are _______. Terrestrial Underground Underwater All the above None Hint 100). The limitations of WSN are _______. Posses 8MHz Works on batteries Provides less storage space All the above None Hint 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 None Hint 102). What is the disadvantage of a wireless sensor network in industrial applications? Network delay Multipath fading Both a and b None None Hint 103). What is the advantage of wireless sensor network in precision agriculture? Large crop area monitoring Soil moisture Nutrition stress All of the above None Hint 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 None Hint 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 None Hint 106). What is the disadvantage of a wireless sensor network in health care? Cost maintenance Insecurity of patients Both a and b None None Hint 107). What is the advantage of wireless sensor networks in transportation? High accuracy Maintenance Flexibility All of the above None Hint 108). What is the disadvantage of wireless sensor networks in transportation? Connectivity Cost Congestion All of the above None Hint 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 None Hint 110). What is the disadvantage of a wireless sensor network in environmental monitoring? Biofouling problem Data security Both a and b None None Hint Time's up
