Telecommunication and Switching Systems Question & AnswersJuly 5, 2021 By WatElectronics This article lists 100 Telecommunication and Switching Systems MCQs for engineering students. All the Telecommunication and Switching Systems Questions & Answers given below includes solution and link wherever possible to the relevant topic.Telecommunication implies communication between two points separated by a distance. It includes all types of techniques such as radio, telegraphy, telephony, television, data communication, and computer networking. We can define telecommunications as communicating information such as data, text, pictures, voice, audio, and video over long distances. The medium for such a signal transmission can be through electrical wire or cable, it could be an optical fiber, electromagnetic fields, and so on. If the communication is using the free space by means of electromagnetic waves then it is called wireless.The digital switching systems are categorized into three types they are space switch, time switch, and combinational switch. The call processing system's basic functions are call identification and call routing, call status, path setup between subscribers, billing, and digital translation. There are three types of communications they are point to point, broadcast communication, and multiplex system. The telephone system, mobile cellular system, microwave radio systems, etc are examples of telecommunication.1). The switching systems are categorized into ____________ One Two Three Four HintThe switching systems are categorized into two types they are automatic and manual2). The switching methods are of ____________ One Two Three Four HintThe switching methods are of three types they are circuit, message, and packet switching methods3). The blocking cannot occur in ______ switching Circuit Packet Both a and b None of the above HintThe blocking cannot occur in packet switching4). The telecommunication network consists of ________ Switching Transmission Stations All of the above HintThe telecommunication network consists of switching and transmission systems and stations5). What is the standard form of PSTN? Public Switched Telecommunication Network Public Switched Telecommunication Network None of the above HintThe Full form of PSTN is Public Switched Telecommunication Network6). The electromechanical switching systems categorized into ____________ One Two Three Four HintThe electromechanical switching systems categorized into two types they are strowger and cross over7). The automatic switching systems categorized into ____________ One Two Three Four HintThe automatic switching systems categorized into two types they are electromechanical and electronic8). The PSTN consists of ___________ network Local Junction Toll or trunk All of the above HintThe PSTN consists of local, junction, toll, or trunk networks9). What are the elements of a telecommunication network? Transmission system Switching system Signaling system All of the above HintThe transmission system, switching system, signaling system are the elements of a telecommunication network10). What is the standard form of PDN? Private Data Network Public Data Network Private Service Data Network None of the above HintThe standard form of PDN is Public Data Network11). __________ are the components of private branch exchange Common control, switching matrix Trunks, terminals Both a and b None of the above HintThe common control, switching matrix, trunks, terminals are the components of private branch exchange12). The electronic switching system categorized into ____________ One Two Three Four HintThe electronic switching system categorized into two types they are space division switching and time division switching13). The time switching systems are categorized into ________ One Two Three Four HintThe time switching systems are categorized into two types they are digital and analog14). What is the standard form of SPC? Stored Program Control Simple Program Control Switching Program Control None of the above HintThe standard form of SPC is Stored Program Control15). What are the advantages of stored program control? Easy to control Easy to maintain Flexible All of the above HintThe stored program control is easy to control and maintain and it is flexible16). __________ are the transmission systems Radio Coaxial cable Optical All of the above HintThe radio, coaxial cable, optical are the transmission systems 17). _______ are the routing methods Right through routing Computer-controlled routing Own exchange routing All of the above HintThe right through, computer-controlled, and own exchange routings are the routing methods 18). __________ are the basic functional elements of stored program control switching systems Switching matrix Call store, program store Central processor All of the above HintThe switching matrix, call store, program store, central processor are the basic functional elements of stored program control switching systems19). The digital switching systems are categorized into ________ One Two Three Four HintThe digital switching systems are categorized into three types they are space switch, time switch, and combinational switch20). The call processing system basic functions are _________ Call identification and call routing, call status Path setup between subscribers Billing, digital translation All of the above HintThe call processing system basic functions are call identification and call routing, call status, path setup between subscribers, billing, and digital translation21). What is the standard form of SVC? Switched Virtual Circuit Simple Virtual Circuit Switched Virtual Control None of the above HintThe standard form of SVC is Switched Virtual Circuit22). What is the standard form of PVC? Permanent Virtual Circuit Packet Virtual Circuit Private Virtual Circuit None of the above HintThe standard form of PVC is Permanent Virtual Circuit23). What is the standard form of ISDN? Internet Services Digital Network Integrated Services Digital Network Internet Digital Network None of the above HintThe standard form of ISDN is Integrated Services Digital Network24). The switching system provides __________ signaling Subscriber loop Interexchange Both a and b None of the above HintThe switching system provides subscriber loop, interexchange signalings25). The switchboards are of __________ One Two Three Four HintThe switchboards are of two types they are single termination and multi termination switchboardsTelecommunication and Switching Systems MCQs for Exams26). How many types of selectors are there in the stowger system? One Two Three Four HintThere are two types of selectors are there in the stowger system they are uniselector and two motion selector27). The ratio of switching capacity divided by the theoretical maximum load is known as ________ Traffic handling capability Switching capacity Equipment utilization factor None of the above HintThe ratio of switching capacity divided by the theoretical maximum load is known as traffic handling capability28). The ratio of switching capacity divided by cost per subscriber line is known as _____________ Traffic handling capability Switching capacity Equipment utilization factor Cost capacity index HintThe ratio of switching capacity divided by cost per subscriber line is known as the cost capacity index29). The switching system application software divided into ______ classes One Two Three Four HintThe switching system application software divided into three classes call processing, administrative, and maintenance software30). Due to _______, the optical power loss occurs in the fiber optic system Connector loss, splice loss Fiber attenuation Source to fiber coupling losses All of the above HintDue to connector loss, splice loss, source to fiber coupling losses the optical power loss occurs in the fiber optic system31). The fiber attenuation caused by __________ Absorption Scattering Radiation All of the above HintThe fiber attenuation caused by absorption, scattering, and radiation losses32). The ratio of the reflected signal divided in incident signal is known as ____________ Reflection coefficient Incident coefficient Cost capacity index None of the above HintThe ratio of the reflected signal divided into the incident signal is known as the reflection coefficient33). __________ are the main aspects in a local area network Medium of transmission Topology Access method All of the above HintThe medium of transmission, topology, access method are the main aspects of a local area network34). The routing strategies are divided into ________ One Two Three Four HintThe routing strategies are divided into two types they are deterministic and stochastic 35). The bandwidth of telephone is between _____________ 300-3400Hz 30-3400Hz 3-3400Hz 300-340Hz HintThe bandwidth of the telephone is between 300-3400Hz36). The bandwidth of music is between _____________ 500-3400Hz 50Hz-16KHz 6-3400Hz 200-340Hz HintThe bandwidth of music is between 50Hz-16KHz37). The bandwidth of facsimile is _____________ 40KHz 50Hz-16KHz 6-3400Hz 200-340Hz HintThe bandwidth of facsimile is 40KHz38). The ratio of uptime divided by SVM of uptime and downtime is known as __________ Availability Incident coefficient Deflection coefficient None of the above HintThe ratio of uptime divided by SVM of uptime and downtime is known as availability39). The bit rate of personal communication is __________ 300 to 9600 bits/sec 30 to 9600 bits/sec 500 to 9600 bits/sec 900 to 9600 bits/sec HintThe bit rate of personal communication is 300 to 9600 bits/sec40). The bit rate of personal communication is __________ 2400 to 9600 bits/sec 300 to 9600 bits/sec 500 to 9600 bits/sec 900 to 9600 bits/sec HintThe bit rate of personal communication is 2400 to 9600 bits/sec41). ________ are the important features of TST switches Low blocking probability Stage independence Both a and b None of the above HintThe important features of TST switches are low blocking probability, stage independence, and implementation advantage42). What is the standard form of ESS? Electrical Switching System Electronic Switching System Embedded Switching System None of the above HintThe standard form of ESS is Electronic Switching System43). The electronic switching system consists of __________ Programming capability Memory An external rapid switching component All of the above HintThe electronic switching system consists of programming capability, memory, an external rapid switching component44). The bit rate of the digital voice phone call is ______ 24 to 96 bits/sec 30 to 96 bits/sec 50 to 96 bits/sec 6400 bits/sec HintThe bit rate of the digital voice phone call is 6400 bits/sec45). The bit rate of the digital audio is ______ 24 to 96 bits/sec 30 to 96 bits/sec 50 to 96 bits/sec 1 to 2M bits/sec HintThe bit rate of the digital audio is 1 to 2M bits/sec46). What is the standard form of DSS? Digital Switching System Data Switching System Digital Subscriber System None of the above HintThe standard form of DSS is Digital Switching System47). What is the standard form of DSSS? Digital Switching System Data Switching System Digital Subscriber Switching System None of the above HintThe standard form of DSSS is Digital Subscriber Switching System48). The ratio of blocked busy hour calls divided by offered busy hour calls is known as _____________ Grade of service Incident coefficient Deflection coefficient None of the above HintThe ratio of blocked busy hour calls divided by offered busy hour calls is known as the grade of service49). How many ways are there to create a virtual private network connection? One Two Three Four HintThere are two ways to create a virtual private network connection they are by dialing an ISP, and by connecting directly to the internet50). What is the standard form of IPsec? Internet Protocol System Internet Protocol Security Internet Protocol Service None of the above HintThe standard form of IPsec is Internet Protocol SecurityTelecommunication and Switching Systems MCQs with Hints51). The bit rate of compressed video is ____________ 2 to 10M bits/sec 12 to 10M bits/sec 1 to 10M bits/sec HintThe bit rate of compressed video is 2 to 10M bits/sec52). The bit rate of document imaging is ____________ 10 to 100M bits/sec 12 to 10M bits/sec 1 to 10M bits/sec 9 to 10M bits/sec HintThe bit rate of document imaging is 10 to 100M bits/sec53). ________ network protocols used within virtual private network tunnels IPsec PPTP L2TP All of the above HintIPsec, PPTP, L2TP network protocols used within virtual private network tunnels54). The advantages of outband signaling are ____________ Simple Cheap Costly Both a and b HintThe outband signaling is simple and cheap55). The voice frequency signaling are of ___________ One Two Three Four HintThe voice frequency signaling are of two types they are inband and outband signaling56). The in-channel signaling categorized into _______ One Two Three Four HintThe in-channel signaling categorized into four types they are loop disconnect, voice frequency, PCM, and multi-frequency57). The networks are of __________ One Two Three Four HintThe networks are of three types they are public switched, private, and hybrid network58). The bit rate of the full-motion video is _______ 10 to 100M bits/sec 12 to 10M bits/sec 1 to 2G bits/sec 9 to 10M bits/sec HintThe bit rate of the full-motion video is 1 to 2G bits/sec59). ____________ are the models of loss systems Lost calls held Lost calls returned Lost calls cleared All of the above HintThe lost calls held, lost calls returned, lost calls cleared are the models of loss systems60). The transmission of data is continuous in ________ switching Circuit Datagram packet Virtual circuit packet None of the above HintThe transmission of data is continuous in circuit switching61). The call setup required in _______ switching Circuit Packet Both a and b None of the above HintThe call setup required in circuit switching62). In message switching the information type is _______ Baudot Morse ASCII All of the above HintIn message switching the information type is Baudot, morse, and ASCII63). In packet switching the information type is _______ Baudot Morse ASCII Bianary HintIn packet switching the information type is binary64). ________ switching is suitable for bulk data transfer Circuit Packet Both a and b None of the above HintThe circuit switching is suitable for bulk data transfer65). The charge in circuit switching is based on _______ Data Time Distance None of the above HintThe charge in circuit switching is based on data66). The charge in packet switching is based on _______ Data Time Distance Both b and c HintThe charge in packet switching is based on time and distance67). The end terminal in message switching is ___________ Teletype Telegraph Both a and b None of the above HintThe end terminal in message switching is teletype and telegraph68). The end terminal in circuit switching is ___________ Modem Telephone Both a and b None of the above HintThe end terminal in circuit switching is modem and telephone69). The end terminal in packet switching is ___________ Modem Telephone Computer None of the above HintThe end terminal in packet switching is the computer70). In-circuit switching the congestion occurs _________ At setup time On every packet Both a and b None of the above HintIn-circuit switching the congestion occurs at setup time Read more about Circut Switching71). In which switching each packet follows the same route? Circuit Packet Both a and b None of the above HintIn-circuit switching each packet follows the same route72). The bandwidth is fixed in ________ switching Circuit Packet Both a and b None of the above HintThe bandwidth is fixed in circuit switching 73). In _________ switching the quality of service is difficult Circuit Packet Both a and b None of the above HintIn packet switching the quality of service is difficult74). The resource reservation is difficult in __________ switching Circuit Packet Both a and b None of the above HintThe resource reservation is difficult in packet switching75). In-circuit switching ________ switches are used Space division Time division Both a and b None of the above HintIn-circuit switching space and time division switches are usedTelecommunication and Switching Systems MCQs for Quiz76). An electromechanical switching system, ________ switches are operated electrically Mechanical Electrical Both a and b None of the above HintAn electromechanical switching system, mechanical switches are operated electrically77). For switching purposes ___________ are used in electronic switching systems Diodes ICs Transistors All of the above HintFor switching purposes diodes, ICs, transistors are used in electronic switching systems78). The switching systems are categorized into _________ One Two Three Four HintThe switching systems are categorized into two types they are direct and indirect switching systems79). How many types of selectors are there in the strowger switching system? One Two Three Four HintThere are two types of selectors are there in the strowger switching systems they are uniselector and two motion selector80). What is the standard form of DTMF? Dual Tone Multi-Frequency Dual Time Multi-Frequency Direct Tone Multi-Frequency None of the above HintThe standard form of DTMF is Dual Tone Multi-Frequency81). The numbering plans are of ___________ One Two Three Four HintThe numbering plans are of three types they are open, semi-open, and closed numbering plans82). The out channel signaling is categorized into __________ One Two Three Four HintThe out channel signaling is categorized into two types they are associated and non-associated83). How many nodes does common channel signaling consist of? One Two Three Four HintThe common channel signaling consists of STP and SP nodes84). What is the standard form of STP? Switching Transfer Protocol Signaling Transfer Points Signaling Transfer Protocol None of the above HintThe standard form of STP is Signaling Transfer Points85). What is the standard form of SP? Switching Protocol Signaling Points Signaling Protocol None of the above HintThe standard form of SP is Signaling Points86). The ISDN supports ________ Database access Audio and video conferencing Electronic fund transfer All of the above HintThe ISDN supports database access, audio and video conferencing, electronic fund transfer, etc87). The ISDN is categorized into ___________ One Two Three Four HintThe ISDN is categorized into four types they are BRI, PRI, narrowband and broadband ISDN88). What is the standard form of BRI? Bit Rate Interface Basic Rate Interface Basic Rate Internet None of the above HintThe standard form of BRI is Basic Rate Interface89). What is the standard form of PRI? Permanent Rate Interface Primary Rate Interface Privacy Rate Internet None of the above HintThe standard form of PRI is Primary Rate Interface90). What are the advantages of ISDN? Chances for errors is less Connection is faster Higher bandwidth All of the above HintIn ISDN the connection is faster, it requires higher bandwidth, and the chances for errors is less91). The signal may be a function of ____________ Time, temperature Position, pressure Distance All of the above HintThe signal may be a function of time, temperature, position, pressure, distance, etc92). How many types of channels are there? One Two Three Four HintThe channels are of two types one is wired and the other one is wireless93). _______ are the examples of wired channels Twisted pair Coaxial All of the above HintThe twisted pair, coaxial, fiber optics, etc are examples of the wired channels94). _______ are the examples of the wireless channel AM music FM music TV broadcast All of the above HintThe AM music, FM music, TV broadcast are examples of the wireless channelRead more about Wireless Communication95). The bandwidth of speech is around _______ 1000Hz 2000Hz 3100Hz 4000Hz HintThe bandwidth of speech is around 3100Hz96). The typical spectrum of human speech is of _________ 300Hz to 3400Hz 100Hz to 3400Hz 200Hz to 3400Hz 23000Hz to 3400Hz HintThe typical spectrum of human speech is of 300Hz to 3400Hz97). _____________ are the desirable characteristics of the communication system Fast, accurate, secure Scalable Routable/switchable All of the above HintThe communication system should be fast, accurate, secure, scalable, routable/switchable, etc 98). ________ are the examples of telecommunication Telephone system Mobile cellular system Microwave radio systems All of the above HintThe telephone system, mobile cellular system, microwave radio systems, etc are examples of telecommunication99). The communication is of __________ types One Two Three Four HintThere are three type of communications they are point to point, broadcast communication, and multiplex system100). Which one is a type of telecom network? PSTN Enterprise networks Both a and b None of the above HintBoth PSTN and enterprise networks are types of telecom network Time is Up! Time's up
