2010-ce-cit
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2010-CE-CIT-My answer (It is not 100% guaranteed correct) Paper 1A 1 2 3 4 5 6 7 8 9 10 A D C B C D A D A D 11 12 13 14 15 16 17 18 19 20 D C D A B B D C C A 21 22 23 24 25 26 27 28 29 30 B B B A A B D B C C 31 32 33 34 35 36 37 38 39 40 A A B C C A C B C D Paper 1B 1. (a) (i) Store username and password. (ii) User-defined question and answer / CAPTCHA ("Completely Automated Public Turing test to tell Computers and Humans Apart.") / Date of birth / Token code (b) (i) el.org.hk (ii) http://www.el.org.hk/login.html (c) On-line chat : sharing ideas interactively. 2. File sharing : sharing files for group project. (d) Keyword search / using wild card characters (e) (i) To define the background colour as green. (ii) 255 (iii) <body bgcolor="green"> [SKIPPED] 3. (a) (i) Do not need to install / The online software must be the most updated version. (ii) Slow response / Cannot function if network failure / There may have some quota limitation for your file. (b) (i) View size / volume of sound level (ii) Smaller storage size / Faster to load the image. (iii) Advantage: Portable Disadvantage: Cannot show video. (c) Text of design 2 is better (Large font size, justification) Video of design 2 is better (Large view size) Image of design 1 is better (Proportionally resized as the original image) Layout of design 2 is better (Fully utilize the web page) 4. (a) Special paper for printing / Print out fades after sometime. (b) Cache size / Accessing time / Rotations per minute for disk (c) (i) Twisted-pair wire (ii) No (iii) Protocol (iv) Group files for sharing in one folder and set sharing permission for that folder. (d) Backup / Virus scanning. 5. [SKIPPED] Paper 2 1. [SKIPPED] 2. (a) Hard disk: Fast accessing speed. Storage card: Portable and small physical size. Recordable digital video disc: Cheap (b) (i) C. High resolution and high frame rate. A. Small storage size (ii) 5 x 60 x 30 x 1920 x 1080 x 24 bits = 55987200000 B = 52GB (c) (i) Mono : Small storage size (ii) 22.05kHz. Voice does not require high quality (iii) Compression / Reducing frame size. 3. (d) [SKIPPED] (a) School Fast access / will not be affected by outside network traffic (b) (i) C. Password checking must be hidden from client. (ii) Support wild card character / support category search (iii) All (c) Method 1: The original web page can still be viewed. So the hyperlink can still be used. Method 2: The number of windows used is smaller. So the memory used is less. (d) [SKIPPED] 4. (a) (i) Interlaced JPEG is a technique to present the image in two parts. The first part is half of the image (odd number of lines) and the other part is another half of the image (even number of lines). Advantage: It can present a half image (rough image) to the viewer if the network traffic is busy. (ii) Difference 1: GIF : 256 colors JPEG: 24-bit color Difference 2: GIF: lossless compression JPEG: lossy compression (iii) They are with different compression ratio. (b) (i) Method 1: Disable the mouse selection function. Method 2: Change the web page to graphics. (ii) Disadvantage of Method 1: Other mouse usage cannot be used. Disadvantage of Method 2: The file size is larger. (iii) They capture the image and use OCR technique to extract the text. (c) [SKIPPED]
