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Telecommunication and Switching Systems Question & Answers

July 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 ____________
HintThe switching systems are categorized into two types they are automatic and manual
2). The switching methods are of ____________
HintThe switching methods are of three types they are circuit, message, and packet switching methods
3). The blocking cannot occur in ______ switching
HintThe blocking cannot occur in packet switching
4). The telecommunication network consists of ________
HintThe telecommunication network consists of switching and transmission systems and stations
5). What is the standard form of PSTN?
HintThe Full form of PSTN is Public Switched Telecommunication Network
6). The electromechanical switching systems categorized into ____________
HintThe electromechanical switching systems categorized into two types they are strowger and cross over
7). The automatic switching systems categorized into ____________
HintThe automatic switching systems categorized into two types they are electromechanical and electronic
8). The PSTN consists of ___________ network
HintThe PSTN consists of local, junction, toll, or trunk networks
9). What are the elements of a telecommunication network?
HintThe transmission system, switching system, signaling system are the elements of a telecommunication network
10). What is the standard form of PDN?
HintThe standard form of PDN is Public Data Network
11). __________ are the components of private branch exchange
HintThe common control, switching matrix, trunks, terminals are the components of private branch exchange
12). The electronic switching system categorized into ____________
HintThe electronic switching system categorized into two types they are space division switching and time division switching
13). The time switching systems are categorized into ________
HintThe time switching systems are categorized into two types they are digital and analog
14). What is the standard form of SPC?
HintThe standard form of SPC is Stored Program Control
15). What are the advantages of stored program control?
HintThe stored program control is easy to control and maintain and it is flexible
16). __________ are the transmission systems
HintThe radio, coaxial cable, optical are the transmission systems
17). _______ are the routing methods
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
HintThe switching matrix, call store, program store, central processor are the basic functional elements of stored program control switching systems
19). The digital switching systems are categorized into ________
HintThe digital switching systems are categorized into three types they are space switch, time switch, and combinational switch
20). The call processing system basic functions are _________
HintThe call processing system basic functions are call identification and call routing, call status, path setup between subscribers, billing, and digital translation
21). What is the standard form of SVC?
HintThe standard form of SVC is Switched Virtual Circuit
22). What is the standard form of PVC?
HintThe standard form of PVC is Permanent Virtual Circuit
23). What is the standard form of ISDN?
HintThe standard form of ISDN is Integrated Services Digital Network
24). The switching system provides __________ signaling
HintThe switching system provides subscriber loop, interexchange signalings
25). The switchboards are of __________
HintThe switchboards are of two types they are single termination and multi termination switchboards

Telecommunication and Switching Systems MCQs for Exams

26). How many types of selectors are there in the stowger system?
HintThere are two types of selectors are there in the stowger system they are uniselector and two motion selector
27). The ratio of switching capacity divided by the theoretical maximum load is known as ________
HintThe ratio of switching capacity divided by the theoretical maximum load is known as traffic handling capability
28). The ratio of switching capacity divided by cost per subscriber line is known as _____________
HintThe ratio of switching capacity divided by cost per subscriber line is known as the cost capacity index
29). The switching system application software divided into ______ classes
HintThe switching system application software divided into three classes call processing, administrative, and maintenance software
30). Due to _______, the optical power loss occurs in the fiber optic system
HintDue to connector loss, splice loss, source to fiber coupling losses the optical power loss occurs in the fiber optic system
31). The fiber attenuation caused by __________
HintThe fiber attenuation caused by absorption, scattering, and radiation losses
32). The ratio of the reflected signal divided in incident signal is known as ____________
HintThe ratio of the reflected signal divided into the incident signal is known as the reflection coefficient
33). __________ are the main aspects in a local area network
HintThe medium of transmission, topology, access method are the main aspects of a local area network
34). The routing strategies are divided into ________
HintThe routing strategies are divided into two types they are deterministic and stochastic
35). The bandwidth of telephone is between _____________
HintThe bandwidth of the telephone is between 300-3400Hz
36). The bandwidth of music is between _____________
HintThe bandwidth of music is between 50Hz-16KHz
37). The bandwidth of facsimile is _____________
HintThe bandwidth of facsimile is 40KHz
38). The ratio of uptime divided by SVM of uptime and downtime is known as __________
HintThe ratio of uptime divided by SVM of uptime and downtime is known as availability
39). The bit rate of personal communication is __________
HintThe bit rate of personal communication is 300 to 9600 bits/sec
40). The bit rate of personal communication is __________
HintThe bit rate of personal communication is 2400 to 9600 bits/sec
41). ________ are the important features of TST switches
HintThe important features of TST switches are low blocking probability, stage independence, and implementation advantage
42). What is the standard form of ESS?
HintThe standard form of ESS is Electronic Switching System
43). The electronic switching system consists of __________
HintThe electronic switching system consists of programming capability, memory, an external rapid switching component
44). The bit rate of the digital voice phone call is ______
HintThe bit rate of the digital voice phone call is 6400 bits/sec
45). The bit rate of the digital audio is ______
HintThe bit rate of the digital audio is 1 to 2M bits/sec
46). What is the standard form of DSS?
HintThe standard form of DSS is Digital Switching System
47). What is the standard form of DSSS?
HintThe standard form of DSSS is Digital Subscriber Switching System
48). The ratio of blocked busy hour calls divided by offered busy hour calls is known as _____________
HintThe ratio of blocked busy hour calls divided by offered busy hour calls is known as the grade of service
49). How many ways are there to create a virtual private network connection?
HintThere are two ways to create a virtual private network connection they are by dialing an ISP, and by connecting directly to the internet
50). What is the standard form of IPsec?
HintThe standard form of IPsec is Internet Protocol Security

Telecommunication and Switching Systems MCQs with Hints

51). The bit rate of compressed video is ____________
HintThe bit rate of compressed video is 2 to 10M bits/sec
52). The bit rate of document imaging is ____________
HintThe bit rate of document imaging is 10 to 100M bits/sec
53). ________ network protocols used within virtual private network tunnels
HintIPsec, PPTP, L2TP network protocols used within virtual private network tunnels
54). The advantages of outband signaling are ____________
HintThe outband signaling is simple and cheap
55). The voice frequency signaling are of ___________
HintThe voice frequency signaling are of two types they are inband and outband signaling
56). The in-channel signaling categorized into _______
HintThe in-channel signaling categorized into four types they are loop disconnect, voice frequency, PCM, and multi-frequency
57). The networks are of __________
HintThe networks are of three types they are public switched, private, and hybrid network
58). The bit rate of the full-motion video is _______
HintThe bit rate of the full-motion video is 1 to 2G bits/sec
59). ____________ are the models of loss systems
HintThe lost calls held, lost calls returned, lost calls cleared are the models of loss systems
60). The transmission of data is continuous in ________ switching
HintThe transmission of data is continuous in circuit switching
61). The call setup required in _______ switching
HintThe call setup required in circuit switching
62). In message switching the information type is _______
HintIn message switching the information type is Baudot, morse, and ASCII
63). In packet switching the information type is _______
HintIn packet switching the information type is binary
64). ________ switching is suitable for bulk data transfer
HintThe circuit switching is suitable for bulk data transfer
65). The charge in circuit switching is based on _______
HintThe charge in circuit switching is based on data
66). The charge in packet switching is based on _______
HintThe charge in packet switching is based on time and distance
67). The end terminal in message switching is ___________
HintThe end terminal in message switching is teletype and telegraph
68). The end terminal in circuit switching is ___________
HintThe end terminal in circuit switching is modem and telephone
69). The end terminal in packet switching is ___________
HintThe end terminal in packet switching is the computer
70). In-circuit switching the congestion occurs _________
HintIn-circuit switching the congestion occurs at setup time
Read more about Circut Switching
71). In which switching each packet follows the same route?
HintIn-circuit switching each packet follows the same route
72). The bandwidth is fixed in ________ switching
HintThe bandwidth is fixed in circuit switching
73). In _________ switching the quality of service is difficult
HintIn packet switching the quality of service is difficult
74). The resource reservation is difficult in __________ switching
HintThe resource reservation is difficult in packet switching
75). In-circuit switching ________ switches are used
HintIn-circuit switching space and time division switches are used

Telecommunication and Switching Systems MCQs for Quiz

76). An electromechanical switching system, ________ switches are operated electrically
HintAn electromechanical switching system, mechanical switches are operated electrically
77). For switching purposes ___________ are used in electronic switching systems
HintFor switching purposes diodes, ICs, transistors are used in electronic switching systems
78). The switching systems are categorized into _________
HintThe switching systems are categorized into two types they are direct and indirect switching systems
79). How many types of selectors are there in the strowger switching system?
HintThere are two types of selectors are there in the strowger switching systems they are uniselector and two motion selector
80). What is the standard form of DTMF?
HintThe standard form of DTMF is Dual Tone Multi-Frequency
81). The numbering plans are of ___________
HintThe numbering plans are of three types they are open, semi-open, and closed numbering plans
82). The out channel signaling is categorized into __________
HintThe out channel signaling is categorized into two types they are associated and non-associated
83). How many nodes does common channel signaling consist of?
HintThe common channel signaling consists of STP and SP nodes
84). What is the standard form of STP?
HintThe standard form of STP is Signaling Transfer Points
85). What is the standard form of SP?
HintThe standard form of SP is Signaling Points
86). The ISDN supports ________
HintThe ISDN supports database access, audio and video conferencing, electronic fund transfer, etc
87). The ISDN is categorized into ___________
HintThe ISDN is categorized into four types they are BRI, PRI, narrowband and broadband ISDN
88). What is the standard form of BRI?
HintThe standard form of BRI is Basic Rate Interface
89). What is the standard form of PRI?
HintThe standard form of PRI is Primary Rate Interface
90). What are the advantages of ISDN?
HintIn ISDN the connection is faster, it requires higher bandwidth, and the chances for errors is less
91). The signal may be a function of ____________
HintThe signal may be a function of time, temperature, position, pressure, distance, etc
92). How many types of channels are there?
HintThe channels are of two types one is wired and the other one is wireless
93). _______ are the examples of wired channels
HintThe twisted pair, coaxial, fiber optics, etc are examples of the wired channels
94). _______ are the examples of the wireless channel
HintThe AM music, FM music, TV broadcast are examples of the wireless channel

Read more about Wireless Communication

95). The bandwidth of speech is around _______
HintThe bandwidth of speech is around 3100Hz
96). The typical spectrum of human speech is of _________
HintThe typical spectrum of human speech is of 300Hz to 3400Hz
97). _____________ are the desirable characteristics of the communication system
HintThe communication system should be fast, accurate, secure, scalable, routable/switchable, etc
98). ________ are the examples of telecommunication
HintThe telephone system, mobile cellular system, microwave radio systems, etc are examples of telecommunication
99). The communication is of __________ types
HintThere are three type of communications they are point to point, broadcast communication, and multiplex system
100). Which one is a type of telecom network?
HintBoth PSTN and enterprise networks are types of telecom network
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