CS601 Quiz 1 by MSA VU Services

1. In __________________, the instantaneous change in the carrier frequency is proportional to the derivative of the amplitude of the modulating signal. Frequency
2. _________ layer is responsible for creating datagrams. The data link layer
3. Voltage controlled oscillator (VCO) generates ________________ . 4 ways
4. Block coding can help in ____________at the receiver side. Synchronization and error detection
5. At the application layer, object/information is in the form of ________. Message
6. ___________ is the first step in PCM technique. Sampling…confirm
7. Communication between two user in a cellular (Mobile) network is an example of __ communication. Full duplex….confirm
8. Transmission medium are of ______ types.
9. A frequency is called ____ if sine wave changes with time Infinte frequency…confirm
10. A frequency is called ____ if sine wave does not change with time Zero frequency ….confirm
11. Open system interconnection (OSI) has __ number of layers. 7…confirm
12. 8In unidirectional antenna, the common point where all the lines
13. intersect each other is ___. Focus…confirm
14. To calculate the data rate for noisy channel ____ formula is used. Shannon….confirm
15. Television broadcast where user can only view the information sent in the form of video is an example of _______ communication. Simplex
16. N= S*r is the formula for finding Baud rate…..confirm
17. TCP/IP protocol suit has _______ layers. 5….confirm
18. Unit of phase is _______. Degree….confirm
19. 14. For a noiseless channel theoretical formula to calculate the data rate was developed by. Nyquist…..confirm
20. In context of bandwidth-delay product the cross section of the pipe represents the ______.
21. Uni polar Polar and Bipolar are types of _____ coding scheme. Line…confirm
22. In ___ scheme the voltages are on both sides of the time axis and voltage level for 0 can be positive ant the voltage level for 1 can be negative. Polar….confirm
23. In _______ transmission medium start and stop bits are used Asynchronous….confirm from net
24. In layered architecture of network logical connection between layers means. They are connected in peers…..confirm
25. OSI stands for _______. Open system interconnection….confirm
26. Quadrature Amplitude Modulation is the mechanism of ______conversion. Digital to analog…confirm
27. Writing used for transmission modes depends upon ______. Data stream…confirm
28. The maximum bandwidth required for QAM transmission is the same as that required for _ and _______ transmission. ASK, PSK
29. In optical fiber cable the ratio of the diameter of their core to the diameter of their cladding, both expressed in ______. Micrometers…confirm
30. Radio waves are propagated in _____ whenever they are transmitted by an antenna. All direction …confirm from net
31. _______component of data communication governs the overall communication on the network. Transmission medium…confirm
32. In binary ASK, the peak amplitude of one signal level is 0 and the other is the same as the

Amplitude

33. In _______ scheme, all the signal levels are on one side of the time axis, either above or below. Unipolar…confirm from net
34. Simple sine wave can be used to send. Amplitude
35. Paging system in data communication uses _______ waves. Radio waves…confirm from net
36. Multipoint channel can be shared in _____ manner. Both temporal and spartial…confirm
37. ________ is an example of multipoint topology Bus…confirm
38. Bandwidth can be measured in __________. Bps…confirm
39. In____encoding scheme, we use three levels positive negative and zero Bipolar…confirm from net
40. Header size _while moving down the layers at sending side Decreases
41. ________signals have limited number of discrete value Digital….confirm
42. _______ is a block coding method NRZ-1….confirm
43. Technique that allows the simultaneous transmission of multiple signals across a single data link, is known as ______. Multiplexing….confirm
44. Simultaneous transmission of multiple signals across a single data link is called. Multiplexing…confirm
45. Minimum bandwidth required for Manchester line coding scheme is_________. 1Mhz…confirm
46. AMI is a popular ______ encoding method. Bi-polar….confirm
47. TCP/IP was presented by ________ in a research paper Vin Cerf and bob Kahn…confirm
48. Among the following cables given below _____ cable has the cost as compared to others. Medium….confirm
49. Among the following cables given below _____ cable has the lowest cast as compared to others. Coaxial cable…confirm
50. Among the following cables given below _____ cable has the highest cast as compared to others. Fiber optic cable…confirm
51. ____________ is correct formula to determine the total number of ports needed for one system connected in a mesh network. n-1….confirm
52. A twisted pair cable consists of ________ conductors 2 ….confirm
53. Packets travel in ____ layer of TCP/IP protocol suit Network ….confirm from net

Q54. HDB3 falls under which coding scheme?

Bipolar…confirm

55. According to the Nyquist theorem, the sampling rate must be at least____ times the highest frequency contained in the signal. 2…..confirm
56. ________ protocol suit is being used by the modern internet communication TCP/IP…confirm
57. LF(low frequency) band is used in _______ propagation Ground….confirm
58. ____________ is a type of serial transmission in which data bits are transmitted as a continuous stream in time with a master clock, start bits, stop bits and gaps are not used. Transmitter and receiver time is sync.