Digital Content

Name: Class: Date: Unit 01 Digital Content refers to the symbols that represent people, events, things, and ideas, ANSWER: Data 2. Data refers to the symbols that represent people, events, things, and ideas. a. True b. False ANSWER: True 3. Data becomes when it is presented in a format that people can understand and use. ANSWER: information 4. Data refers to the form in which data is stored, processed, and transmitted. ANSWER: representation 5. Digital data can be that have been converted into discrete digits such as Os and 1s. a. text b. numbers c. graphics, sound, and video d. all of the above ANSWER: d 6. The process of converting information, such as text, numbers, photos, or music, into digital data that can be manipulated by electronic devices is called a. binary b. digitization c. representation d. none of the above ANSWER: b 7. The Os and 1s used to represent digital data are referred to as digits. ANSWER: binary 8. A file name extension indicates the file format. a. True b. False ANSWER: True 9. data consists of numbers that can be used in arithmetic operations. a. Text b. Digital c. Numeric d. Binary ANSWER: c 10. The binary number system has only two digits: 1 and 2. a. True b. False ANSWER: False 11. The number system allows digital devices to represent virtually any number simply by using Os and 1s. a. digital b. text c. numeric d. binary ANSWER: d 12. Character data is composed of letters, symbols, and numerals that are used in calculations. a. True b. False ANSWER: False 13. ASCII requires bits for each character. a. two b. six c. seven. d. ten ANSWER: C 14. Unicode uses bits and provides codes for 65,000 characters. a. seven b. eight c. ten d. sixteen ANSWER: d 75. The process of covering a wireframe with surface color and texture is called ANSWER: rendering, render 76. Which of the following is the technique for adding light and shadows to a 3-D image? a. rendering b. ray tracing c. wireframe d. rasterize ANSWER: b 77. 3-D graphics can be animated. a. True b. False ANSWER: True 78. Which of the following tools would be found in 3D graphics software? a. rendering tools b. ray tracing tools c. surface texture tools d. all of the above ANSWER: d 79. Digital video uses bits to store color and brightness data for each video frame. a. True b. False ANSWER: True 80. Analog footage can be digitized using video equipment. ANSWER: capture 81. Digital captures moving images as bits, rather than on film. ANSWER: cinematography 82. Digital video is a core technology for which of the following? a. digital television b. videoconferencing systems c. video messaging d. all of the above ANSWER: d 83. Which of the following is NOT a factor in the quality of digital video? a. frame rate and resolution b. color and bit depth c. compression technique d. memory technology in your camera ANSWER: d 84. In digital video, each bitmap image is referred to as a(n) ANSWER: frame 85. The number of frames that are displayed per second is measured in a. compression b. fps c. color depth d. bps ANSWER: b 86. Digital videos look sharpest when they are displayed at a resolution that is larger than the frame size. a. True b. False ANSWER: False 87. Video resolutions can be expressed as width x height. a. True b. False ANSWER: True 88. Today's widescreen devices, such as laptops and smartphones, are designed for the 16:9 a. resolution b. aspect ratio c. frame rate d. all of the above ANSWER: b 89. When 4:3 videos are displayed in a widescreen player, they are bordered by the black bars of a(n) ANSWER: letterbox 90. In digital video, as long as the proportion of horizontal and vertical pixels remains the same, the aspect ratio is consistent. a. True b. False ANSWER: True 91. is the number of bits that are processed during a specific unit of time, usually during one second. a. Bit rate b. Bit depth c. Color depth d. none of the above ANSWER: a 92. Bit rate can be scaled down by reducing the resolution and applying techniques. ANSWER: compression 93. In digital video, a lower resolution reduces the bit rate. a. True b. False ANSWER: True 94. compression can be applied to each frame of a video. ANSWER: Intraframe 95. compression stores only the pixels that change color from one frame to the next. ANSWER: Interframe 96. Video compression can be expressed as a compression ANSWER: ratio 97. A(n) is the software that compresses a video stream when a video is stored, and decompresses the file when the video is played. a. compression b. codec c. bitmap d. resolution ANSWER: b 98. Video files are stored in formats that hold the compressed video stream and an audio stream. ANSWER: container 99. Which of the following is NOT a type of digital video container file? a. MP4 b. AVI c. VOB d. PNG ANSWER: d 100. Transcoding digital videos does not cause a loss of quality. a. True b. False ANSWER: False 15. Plain, unformatted text is sometimes called ASCII text. a. True b. False ANSWER: True 16. ASCII text files contain formatting. a. True b. False ANSWER: False 17. In a formatted text file, signals the beginning and end of a formatting command. ANSWER: delimiter, delimiters 18. All of the data stored and transmitted by digital devices is encoded as bits. a. True b. False ANSWER: True 19. A group of eight bits is called a a. byte b. megabit c. binary d. numeric data ANSWER: a 20. Transmission speeds are expressed in whereas storage space is expressed in a. bits, bytes b. bytes, bits c. binary, numeric d. none of the above ANSWER: a 21. Data refers to any technique that recodes the data in a file so that it contains fewer bits. ANSWER: compression 22. Lossy compression provides a way to compress data and reconstitute it into its original state. a. True b. False ANSWER: False 23. Lossy compression throws away some of the original data during the compression process. a. True b. False ANSWER: True 24. Compressed files usually have at the end of the file name. a. .exe b. .zip c. .txt d. none of the above ANSWER: b 25. is music, speech, and other sounds represented in binary format for use in digital devices. a. MIDI b. speech recognition c. speech synthesis d. Digital audio ANSWER: d 26. To digitally record sound, data in an audio file. of a sound wave are collected at periodic intervals and stored as numeric ANSWER: samples, sample, sampling 27. Sampling. refers to the number of times per second that a sound is measured during the recording process. a. rate b. compression c. depth d. sound ANSWER: a 28. To conserve space, applications that require high-quality sound use low sampling rates. a. True b. False ANSWER: False 29. Regardless of sampling rate, digital audio file size can be reduced using audio compression techniques. a. True b. False ANSWER: True 30. Most music for portable media players is stored in audio file formats. a. uncompressed b. compressed c. lossless d. zipped ANSWER: b 31. Digital audio is stored in a variety of file formats, including a. WMA b. WAV c. MP3 d. all of the above ANSWER: d 32. Which of the following is NOT a format that is used for digital audio? a. MP3 b. DOC c. WAV d. Ogg ANSWER: b 33. A(n) is software that works in conjunction with your computer's browser to manage and play audio that you are accessing from a Web page. ANSWER: audio plugin 34. The technical term for ripping music tracks is digital audio extraction. a. True b. False ANSWER: True 35. specifies a standard way to store music data for synthesizers and computers. ANSWER: MIDI 36. MIDI files are less compact than digital audio files. a. True b. False ANSWER: False