InterviewSolution
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InterviewSolution
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. |
ISDN integrates speech and data on(a) Different lines(b) Same lines(c) Different & Same lines(d) None of the mentionedThe question was asked in unit test.This intriguing question originated from ISDN and Interface topic in section Digital Communication of Digital Communications |
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Answer» The correct CHOICE is (B) Same LINES |
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| 2. |
ISDN is a(a) Packet switched network(b) Circuit switched telephone network(c) Packet switched & Circuit switched telephone network(d) None of the mentionedThe question was asked in unit test.Origin of the question is ISDN and Interface topic in chapter Digital Communication of Digital Communications |
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Answer» RIGHT choice is (c) Packet switched & Circuit switched telephone network To EXPLAIN: ISDN is a circuit switched telephone network which also provides access to packet switched network. |
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| 3. |
In channel, delay is(a) Fixed(b) Variable(c) Fixed & Variable(d) None of the mentionedThe question was asked during a job interview.The above asked question is from Abstraction and Layering in portion Digital Communication of Digital Communications |
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Answer» RIGHT choice is (C) Fixed & VARIABLE Easiest explanation: In channel, DELAY can be either fixed or variable. |
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| 4. |
Entities also does(a) Error correction(b) A/D(c) D/A(d) All of the mentionedI got this question during an interview.The question is from Abstraction and Layering in section Digital Communication of Digital Communications |
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Answer» Correct answer is (d) All of the mentioned |
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| 5. |
The services provided by ISDN(a) Bearer service(b) Teleservice(c) Secondary service(d) All of the mentionedThe question was asked by my school principal while I was bunking the class.This interesting question is from ISDN and Interface topic in division Digital Communication of Digital Communications |
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Answer» RIGHT answer is (d) All of the mentioned Easy explanation: The services PROVIDED by ISDN and classified by ATTRIBUTES are bearer SERVICE, teleservice and secondary service. |
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| 6. |
Attributes of ISDN have(a) Definition(b) Allowable values(c) Definition & Allowable values(d) None of the mentionedThe question was asked during an interview for a job.I need to ask this question from ISDN and Interface topic in portion Digital Communication of Digital Communications |
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Answer» Right ANSWER is (C) Definition & Allowable VALUES |
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| 7. |
T interface is the serial interface between(a) Computing device and terminal adapter(b) Terminal adapter and exchange unit(c) Exchange unit and network terminating unit(d) Computing device and exchange unitThis question was posed to me in quiz.Question is taken from ISDN and Interface in portion Digital Communication of Digital Communications |
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Answer» RIGHT option is (a) Computing DEVICE and terminal adapter Best EXPLANATION: T interface is the serial interface between computing device and terminal adapter. |
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| 8. |
S-interface is a _______ bus.(a) Two wire bus(b) Four wire bus(c) Single wired bus(d) None of the mentionedThe question was posed to me in homework.The query is from ISDN and Interface topic in division Digital Communication of Digital Communications |
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Answer» The CORRECT OPTION is (b) Four wire bus |
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| 9. |
U-interface is the two wire interface between(a) Computing device and terminal adapter(b) Terminal adapter and exchange unit(c) Exchange unit and network terminating unit(d) Computing device and exchange unitI got this question in homework.This interesting question is from ISDN and Interface in section Digital Communication of Digital Communications |
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Answer» Right answer is (C) Exchange UNIT and network terminating unit |
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| 10. |
Channel bonding provides(a) Higher data rate(b) Lower data rate(c) Does not affect data rate(d) None of the mentionedThis question was posed to me in an online quiz.I'd like to ask this question from ISDN and Interface topic in chapter Digital Communication of Digital Communications |
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Answer» The CORRECT choice is (a) Higher DATA rate |
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| 11. |
Packet switched connection is provided for(a) Voice(b) Data(c) Voice & Data(d) None of the mentionedI got this question in an interview for job.My question is from ISDN and Interface in portion Digital Communication of Digital Communications |
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Answer» CORRECT ANSWER is (b) DATA Easiest explanation: PACKET switched connection can be provided only for data. |
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| 12. |
Gaussian process is a(a) Wide sense stationary process(b) Strict sense stationary process(c) All of the mentioned(d) None of the mentionedThis question was addressed to me in an interview for job.This intriguing question comes from Random Processes in division Digital Communication of Digital Communications |
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Answer» The correct answer is (C) All of the mentioned |
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| 13. |
Circuit switched connection is provided for(a) Voice(b) Data(c) Voice & Data(d) None of the mentionedThe question was posed to me during a job interview.My question is based upon ISDN and Interface in chapter Digital Communication of Digital Communications |
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Answer» Right CHOICE is (c) Voice & Data |
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| 14. |
In poisson distribution mean is ______ variance.(a) Greater than(b) Lesser than(c) Equal to(d) Does not depend onI had been asked this question during an online exam.Origin of the question is Random Processes topic in portion Digital Communication of Digital Communications |
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Answer» The correct OPTION is (C) Equal to |
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| 15. |
Stochastic processes are(a) Strict sense stationary process(b) Wide sense stationary process(c) All of the mentioned(d) None of the mentionedThe question was posed to me during an interview for a job.The question is from Random Processes topic in portion Digital Communication of Digital Communications |
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Answer» Right option is (b) WIDE SENSE stationary process |
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| 16. |
Stochastic process are(a) Random in nature(b) Are function of time(c) Random in nature and are a function of time(d) None of the mentionedI have been asked this question at a job interview.I'd like to ask this question from Random Processes in portion Digital Communication of Digital Communications |
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Answer» Correct choice is (c) Random in nature and are a function of time |
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| 17. |
Binomial distribution deals with(a) Continuous random variable(b) Discrete random variable(c) Continuous & Discrete random variable(d) None of the mentionedThe question was posed to me during a job interview.My doubt is from Random Processes topic in section Digital Communication of Digital Communications |
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Answer» The correct answer is (B) Discrete RANDOM variable |
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| 18. |
The type of distortion which occurs in delta modulation is(a) Slope overload distortion(b) Granular noise(c) Slope overload distortion & Granular noise(d) None of the mentionedThe question was posed to me during an internship interview.I want to ask this question from Random Processes topic in division Digital Communication of Digital Communications |
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Answer» The correct choice is (c) Slope overload distortion & GRANULAR NOISE |
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| 19. |
Which reduces the dynamic range of quantization noise in PCM?(a) Non uniform quantizer(b) Uniform quantizer(c) Adaptive quantizer(d) None of the mentionedI have been asked this question in an interview for job.This is a very interesting question from Random Processes in section Digital Communication of Digital Communications |
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Answer» Right CHOICE is (C) ADAPTIVE quantizer |
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| 20. |
The source output in PCM and DPCM is quasi stationary.(a) True(b) FalseThis question was posed to me in an online quiz.The question is from Random Processes topic in chapter Digital Communication of Digital Communications |
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Answer» Correct option is (b) False |
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| 21. |
Analog source coding method are(a) Temporal waveform coding(b) Spectral waveform coding(c) Model based coding(d) All of the mentionedI have been asked this question in final exam.This is a very interesting question from Random Processes in division Digital Communication of Digital Communications |
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Answer» The correct answer is (d) All of the mentioned |
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| 22. |
Which method is much better and efficient?(a) Vector quantization(b) Scalar quantization(c) Vector & Scalar quantization(d) None of the mentionedI have been asked this question by my college director while I was bunking the class.I would like to ask this question from Random Processes topic in section Digital Communication of Digital Communications |
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| 23. |
Which tells about signalling?(a) V series(b) X series(c) G series(d) Q seriesI had been asked this question at a job interview.This key question is from Protocols topic in section Digital Communication of Digital Communications |
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Answer» Correct answer is (d) Q SERIES |
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| 24. |
Which tells about low level transmission and framing?(a) V series(b) X series(c) G series(d) Q seriesThis question was addressed to me in my homework.My question is based upon Protocols topic in section Digital Communication of Digital Communications |
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Answer» Correct ANSWER is (C) G series |
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| 25. |
Which uses TCP?(a) Simple mail transfer protocol(b) Simple network management protocol(c) Simple mail transfer & network management protocol(d) None of the mentionedThis question was posed to me in an internship interview.I need to ask this question from Protocols in chapter Digital Communication of Digital Communications |
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Answer» Right choice is (a) Simple mail TRANSFER protocol |
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| 26. |
Which uses UDP?(a) Echo(b) Time(c) Domain name server(d) All of the mentionedI got this question in final exam.The doubt is from Protocols in portion Digital Communication of Digital Communications |
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Answer» Right choice is (d) All of the mentioned |
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| 27. |
Which is connection oriented and which is connection-less?(a) Datagrams, virtual circuits(b) Virtual circuits, datagrams(c) Datagrams(d) None of the mentionedI got this question in final exam.This is a very interesting question from Protocols in chapter Digital Communication of Digital Communications |
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Answer» Right ANSWER is (b) Virtual circuits, datagrams |
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| 28. |
Routing is performed only centrally.(a) True(b) FalseThis question was posed to me in an interview.The doubt is from Protocols topic in chapter Digital Communication of Digital Communications |
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Answer» The correct option is (a) True |
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| 29. |
Routing is(a) Static(b) Dynamic(c) Static & Dynamic(d) None of the mentionedThe question was asked during an interview.Enquiry is from Protocols in portion Digital Communication of Digital Communications |
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Answer» RIGHT OPTION is (c) STATIC & Dynamic Explanation: Routing can be static and dynamic. |
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| 30. |
Window given the number of(a) Bytes(b) Frames(c) Bytes & Frames(d) None of the mentionedThis question was posed to me in an interview.My question comes from Protocols in portion Digital Communication of Digital Communications |
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Answer» Correct OPTION is (C) Bytes & Frames |
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| 31. |
The time required to transmit frame depends on(a) Frame size(b) Channel capacity(c) Frame size & Channel capacity(d) None of the mentionedI got this question during a job interview.My question is based upon Protocols in section Digital Communication of Digital Communications |
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Answer» The correct ANSWER is (c) Frame SIZE & Channel capacity |
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| 32. |
Protocol is a set of(a) Formats(b) Procedures(c) Formats & Procedures(d) None of the mentionedI have been asked this question in a job interview.This question is from Protocols in division Digital Communication of Digital Communications |
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Answer» The correct choice is (c) Formats & PROCEDURES |
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| 33. |
Attenuation is a function of(a) Channel length(b) Transmission media(c) Signal frequencies(d) All of the mentionedThis question was addressed to me during an interview.My question is based upon Abstraction and Layering in chapter Digital Communication of Digital Communications |
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Answer» The CORRECT answer is (d) All of the mentioned |
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| 34. |
The radiation loss increases as(a) Frequency increases(b) Frequency decreases(c) Does not depend on frequency(d) None of the mentionedThe question was posed to me in homework.My query is from Abstraction and Layering in portion Digital Communication of Digital Communications |
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Answer» CORRECT answer is (a) FREQUENCY increases Easiest explanation: The RADIATION LOSS increases as frequency increases. |
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| 35. |
Noise is _____ in nature.(a) Random(b) Systematic(c) Random or Systematic(d) None of the mentionedThis question was posed to me in exam.The question is from Abstraction and Layering in portion Digital Communication of Digital Communications |
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Answer» RIGHT answer is (c) Random or SYSTEMATIC Best explanation: NOISE can be random or systematic. |
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| 36. |
In transmission media, the symbol type is generally(a) Analog(b) Digital(c) Analog & Digital(d) None of the mentionedThe question was asked in final exam.Enquiry is from Abstraction and Layering in portion Digital Communication of Digital Communications |
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Answer» RIGHT option is (a) ANALOG The best explanation: In TRANSMISSION MEDIA, the symbol type is generally analog SIGNALS. |
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| 37. |
Transmission media is(a) Acoustic(b) Guided(c) Optical(d) All of the mentionedI had been asked this question during an interview.My question is from Abstraction and Layering topic in portion Digital Communication of Digital Communications |
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Answer» Right answer is (d) All of the mentioned |
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| 38. |
Embedding is a form of(a) Abstraction(b) Layering(c) Entity sharing(d) None of the mentionedI got this question in an online interview.My query is from Abstraction and Layering topic in section Digital Communication of Digital Communications |
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Answer» Correct answer is (b) LAYERING |
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| 39. |
Top layer is(a) Physical media(b) Application(c) Design(d) None of the mentionedI have been asked this question in an interview for job.Origin of the question is Abstraction and Layering topic in chapter Digital Communication of Digital Communications |
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Answer» The correct option is (b) Application |
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| 40. |
Channel can provide connectivity to(a) Point to point(b) 1 to many(c) Many to many(d) All of the mentionedI have been asked this question in examination.This intriguing question comes from Abstraction and Layering in section Digital Communication of Digital Communications |
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Answer» RIGHT answer is (d) All of the mentioned The EXPLANATION is: CHANNEL can provide connectivity between POINT to point, 1 to MANY and also many to many. |
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