ADVANCED APPLICATIONS OF COMPUTER SCIENCE UNIT-5

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#1. What is the decimal equivalent of the binary number 1101?

#2. Convert the octal number 32 to binary.

#3. The hexadecimal number 1A is equivalent to which decimal number?

#4. What is the binary representation of the decimal number 25?

#5. Convert the decimal number 42 to octal.

#6. The binary number 101011 is equivalent to which hexadecimal number?

#7. What is the octal representation of the binary number 110110?

#8. Convert the decimal number 89 to binary.

#9. The octal number 73 is equivalent to which decimal number?

#10. What is the hexadecimal representation of the binary number 1101101?

#11. Convert the decimal number 120 to octal.

#12. The binary number 111001 is equivalent to which hexadecimal number?

#13. What is the octal representation of the binary number 10110101?

#14. Convert the decimal number 55 to binary.

#15. The hexadecimal number 2F is equivalent to which decimal number?

#16. What is the binary representation of the decimal number 63?

#17. Convert the octal number 76 to binary.

#18. The binary number 101010 is equivalent to which hexadecimal number?

#19. What is the octal representation of the binary number 11001011?

#20. Convert the decimal number 95 to hexadecimal.

#21. The hexadecimal number 3D is equivalent to which decimal number?

#22. What is the binary representation of the decimal number 79?

#23. Convert the octal number 123 to binary.

#24. The binary number 1111001 is equivalent to which hexadecimal number?

#25. What is the octal representation of the binary number 11011110?

#26. Convert the decimal number 115 to binary.

#27. The hexadecimal number 4A is equivalent to which decimal number?

#28. What is the binary representation of the decimal number 101?

#29. Convert the octal number 45 to binary.

#30. The binary number 11011011 is equivalent to which hexadecimal number?

#31. What type of signal is represented by a continuous waveform?

#32. Which signal type is more resistant to noise and interference?

#33. In which form is digital information typically represented?

#34. What is the main advantage of digital signals over analog signals for long-distance transmission?

#35. Which type of signal can have infinite precision within a range?

#36. What does a digital signal consist of?

#37. Which of the following is an example of an analog signal?

#38. What type of processing is often required for manipulating analog signals?

#39. Which signal type is commonly used in traditional clock mechanisms with clock hands?

#40. What is the main disadvantage of analog signals over digital signals?

#41. In digital communication, what do the 0s and 1s represent?

#42. Which type of signal is commonly used in modern telecommunications systems?

#43. What is the primary reason for using digital signals in computers?

#44. Which signal type is represented by a series of voltage pulses?

#45. What is the primary limitation of digital signals?

#46. Which signal type is more suitable for representing human voice?

#47. What type of waveform is often used to represent analog signals?

#48. In which form are analog signals susceptible to degradation over long distances?

#49. Which type of processing is typically required for manipulating digital signals?

#50. Which of the following is an example of a digital signal?

#51. What does the term "modem" stand for?

#52. What is the primary purpose of modulation in a modem?

#53. Which modulation technique involves altering the amplitude of a carrier wave?

#54. In the demodulation process, what does a modem do?

#55. Which type of modem is commonly used for dial-up internet connections?

#56. What is the main advantage of a DSL modem over a traditional analog modem?

#57. Which type of modem uses cable television lines for internet access?

#58. What is the primary transmission medium for a fiber optic modem?

#59. In wireless communication, what type of modem enables Wi-Fi connections?

#60. Which modem type is suitable for areas where wired connections are not feasible?

#61. What is the purpose of a modem in a digital communication system?

#62. Which modulation technique involves altering the frequency of a carrier wave?

#63. What is a common use of a wireless modem?

#64. Which modem type is designed for high-speed internet connections using telephone lines?

#65. What is the function of a modem in a digital subscriber line (DSL) system?

#66. What does the term "modem" stand for?

#67. What is the primary purpose of modulation in a modem?

#68. Which modulation technique involves altering the amplitude of a carrier wave?

#69. In the demodulation process, what does a modem do?

#70. Which type of modem is commonly used for dial-up internet connections?

#71. What is the main advantage of a DSL modem over a traditional analog modem?

#72. Which type of modem uses cable television lines for internet access?

#73. What is the primary transmission medium for a fiber optic modem?

#74. In wireless communication, what type of modem enables Wi-Fi connections?

#75. Which modem type is suitable for areas where wired connections are not feasible?

#76. What is the purpose of a modem in a digital communication system?

#77. Which modulation technique involves altering the frequency of a carrier wave?

#78. What is a common use of a wireless modem?

#79. Which modem type is designed for high-speed internet connections using telephone lines?

#80. What is the function of a modem in a digital subscriber line (DSL) system?

#81. What does the term "codec" stand for?

#82. What is the primary function of a codec?

#83. Which type of codec preserves all the original data after compression and decompression?

#84. What is a characteristic of lossy codecs?

#85. Which type of codec is commonly used for compressing music files with a balance between quality and file size?

#86. In video streaming, why are codecs essential?

#87. 7. Which video codec is commonly used for online video streaming and compression?

#88. What is the purpose of a lossy audio codec like MP3?

#89. Which image codec is commonly used for compressing photographic images?

#90. What type of data does a speech codec typically compress?

#91. Which of the following is a characteristic of lossless codecs?

#92. In what context is a codec used to balance quality and file size in a multimedia file?

#93. Which codec is commonly used for compressing graphics with transparency?

#94. What role do codecs play in streaming services?

#95. Why are lossy codecs often used in video and audio streaming applications?

#96. What is the primary purpose of multiplexing in telecommunications?

#97. In which type of multiplexing are signals transmitted over the same channel but at different time intervals?

#98. What is the key principle behind Frequency Division Multiplexing (FDM)?

#99. Which type of multiplexing is commonly used in radio and television broadcasting?

#100. In Wavelength Division Multiplexing (WDM), what is divided into different channels?

#101. Code Division Multiplexing (CDM) is commonly used in which type of communication networks?

#102. What is the purpose of assigning unique codes in Code Division Multiplexing (CDM)?

#103. Which type of multiplexing involves using different physical pathways for each input signal?

#104. Orthogonal Frequency Division Multiplexing (OFDM) is commonly used in which communication systems?

#105. What does OFDM stand for in telecommunication?

#106. Polarization Division Multiplexing (PDM) is used to increase capacity in which communication medium?

#107. Which multiplexing technique assigns specific time slots to different signals for transmission?

#108. In Time Division Multiplexing (TDM), what happens during each time slot?

#109. What is the primary advantage of Multiplexing in communication systems?

#110. Which type of multiplexing is used to optimize the use of available bandwidth in optical fiber communication?

#111. What is the primary goal of Frequency Division Multiplexing (FDM)?

#112. In which scenario is Code Division Multiplexing (CDM) particularly beneficial?

#113. What is the primary advantage of Space Division Multiplexing (SDM)?

#114. What role does Multiplexing play in satellite communication systems?

#115. Which type of Multiplexing involves dividing the available frequency spectrum into narrow subcarriers?

#116. What is the primary purpose of transmission media in a communication system?

#117. Which transmission medium consists of pairs of insulated copper wires twisted together?

#118. What is the central conductor in a coaxial cable typically made of?

#119. Fiber optic cables transmit data as:

#120. Which advantage is associated with fiber optic cables?

#121. Wireless transmission is characterized by:

#122. What is a disadvantage of wireless transmission?

#123. Satellite communication is known for:

#124. Microwave transmission is suitable for:

#125. Infrared transmission is commonly used in:

#126. Power Line Communication (PLC) utilizes:

#127. Which factor is a limitation of Power Line Communication (PLC)?

#128. What is the primary disadvantage of infrared transmission?

#129. What does the term "line-of-sight" refer to in microwave transmission?

#130. Which transmission medium is immune to electromagnetic interference?

#131. What is the primary characteristic of twisted pair cables?

#132. Which transmission medium is commonly used for cable television and broadband internet?

#133. The central conductor in a coaxial cable is surrounded by:

#134. Which type of cable is suitable for transmitting data over long distances without signal loss?

#135. What is the primary characteristic of electromagnetic waves in wireless transmission?

#136. Which communication medium is known for point-to-point communication using high-frequency microwave signals?

#137. What is the primary goal of satellite communication?

#138. Which transmission medium utilizes existing power lines for data transmission?

#139. Infrared transmission is commonly used in which of the following?

#140. Which factor is a limitation of Power Line Communication (PLC)?

#141. What is the primary purpose of error detection in computer networks?

#142. Which error detection method involves adding a parity bit to the data to ensure even or odd parity?

#143. What is the purpose of a checksum in error detection?

#144. Which error detection method involves adding a hash value to the data for verification?

#145. In error detection using CRC, what does the receiver do to check for errors?

#146. Which error correction method involves retransmitting the entire data frame upon error detection?

#147. What does ARQ stand for in error correction?

#148. Which ARQ protocol requires the sender to wait for an acknowledgment before sending the next frame?

#149. Forward Error Correction (FEC) adds redundant information to:

#150. Which coding scheme is an example of Forward Error Correction (FEC)?

#151. What is the primary consideration in choosing an error correction method for real-time applications?

#152. In error detection, what is the overhead associated with?

#153. Which method introduces redundancy to correct errors without retransmission?

#154. What does the term "line-of-sight" typically refer to in ARQ protocols?

#155. Which error correction method uses acknowledgment and negative acknowledgment messages?

#156. What is a limitation of Power Line Communication (PLC)?

#157. Which error detection method is commonly used for detecting errors in data transmission over telephone lines?

#158. In which scenario is FEC (Forward Error Correction) particularly beneficial?

#159. What is the primary goal of error detection in computer networks?

#160. Which method is used for error detection by dividing the data by a predetermined polynomial?

#161. What is the primary purpose of Parity Checking in error detection?

#162. In Parity Checking, what is the role of the parity bit?

#163. Which type of Parity Checking ensures that the total number of bits (including the parity bit) is even?

#164. If a data byte with Even Parity has an odd number of 1s, what action is taken during Parity Checking?

#165. What is a limitation of Parity Checking as an error detection method?

#166. What is the primary purpose of Cyclic Redundancy Check (CRC) in data communication?

#167. How does CRC detect errors in data transmission?

#168. What is a CRC polynomial used for in the CRC process?

#169. Which statement accurately describes the relationship between the sender and receiver in CRC?

#170. In CRC, what does the sender transmit along with the data to facilitate error detection at the receiver?

#171. If the received CRC at the receiver matches the calculated CRC, what is the likely status of the transmitted data?

#172. What is the primary function of a repeater?

#173. Which networking device operates at the Data Link layer of the OSI model?

#174. What is the main purpose of a hub in a network?

#175. Which device is known for its ability to filter and forward data based on MAC addresses?

#176. A switch operates at which layer of the OSI model?

#177. What is the primary function of a router?

#178. Which device is like a translator between networks using different communication protocols?

#179. What is the primary purpose of a bridge in a network?

#180. Which device connects two similar networks and helps them communicate?

#181. What does a gateway do in a network?

#182. Which networking device is known for creating multiple broadcast domains?

#183. What is the primary function of a firewall in a network?

#184. In a network, which device operates at the Transport layer of the OSI model?

#185. Which networking device is commonly associated with creating collision domains?

#186. What is the primary purpose of a DNS server in networking?

#187. Which device is crucial for connecting wireless devices to a wired network?

#188. What does QoS (Quality of Service) refer to in networking?

#189. Which device is responsible for assigning IP addresses dynamically in a network?

#190. What is the purpose of a VLAN (Virtual Local Area Network)?

#191. Which networking device is associated with the term "store-and-forward" in data transmission?

Finish