Chapter 10: Recovering Graphics Files MULTIPLE CHOICE 1. ____are based on mathematical instructions that define lines, curves, text, ovals, and other geometric shapes. a. Bitmap images c. Vector graphics b. Metafile graphics d. Line-art images PTS: 1 REF: 398 2. You use ____ to create, modify, and save bitmap, vector, and metafile graphics files. a. graphics viewers c. image viewers b. image readers d. graphics editors PTS: 1 REF: 398 3. ____ images store graphics information as grids of individual pixels. a. Bitmap b. Raste r c. Vector d. Metafiles PTS: 1 REF: 398 4. The process of converting raw picture data to another format is referred to as ____. a. JEIDA c. demosaicing b. rastering d. rendering PTS: 1 REF: 401 5. The majority of digital cameras use the ____ format to store digital pictures. a. EXIF c. PNG b. TIFF d. GIF PTS: 1 REF: 401 6. ____ Compression compresses data by permanently discarding bits of information in the file. a. Redundant c. Huffman b. Lossy d. Lossless PTS: 1 REF: 404 7. Recovering pieces of a file is called ____. a. carving c. saving b. slacking d. rebuilding PTS: 1 REF: 405 8. A(n) ____ file has a hexadecimal header value of FF D8 FF E0 00 10. a. EPS c. GIF b. BMP d. JPEG TS: 1 REF: 408 9. If you can’t open an image file in an image viewer, the next step is to examine the file’s ____. a. extension c. header data b. name d. size PTS: 1 REF: 414 1 10. The uppercase letter ____ has a hexadecimal value of 41. a. “A” c. “G” b. “C” d. “Z” PTS: 1 REF: 417 11. The image format XIF is derived from the more common ____ file format. a. GIF c. BMP b. JPEG d. TIFF PTS: 1 REF: 423 12. The simplest way to access a file header is to use a(n) ____ editor a. hexadecimal c. disk b. image d. text PTS: 1 REF: 423 13. The ____ header starts with hexadecimal 49 49 2A and has an offset of four bytes of 5C01 0000 2065 5874 656E 6465 6420 03. a. TIFF b. XIF c. JPEG d. GIF PTS: 1 REF: 425 14. ____ is the art of hiding information inside image files. a. Steganography c. Graphie b. Steganalysis d. Steganos PTS: 1 REF: 425 15. ____ Steganography places data from the secret file into the host file without displaying the secret data when you view the host file in its associated program. a. Replacement c. Substitution b. Append d. Insertion PTS: 1 REF: 426 16. ____ steganography replaces bits of the host file with other bits of data. a. Insertion c. Substitution b. Replacement d. Append PTS: 1 REF: 426 17. In the following list, ____ is the only steg tool. a. EnCase c. DriveSpy b. iLook d. Outguess PTS: 1 REF: 429 18. ____ has also been used to protect copyrighted material by inserting digital watermarks into a file. a. Encryption c. Compression b. Steganography d. Archiving PTS: 1 REF: 430 19. When working with image files, computer investigators also need to be aware of ____ laws to guard against copyright violations. a. international c. copyright b. forensics d. civil PTS: 1 REF: 430 20. Under copyright laws, computer programs may be registered as ____. a. literary works c. architectural works b. motion pictures d. audiovisual works 1 PTS: 1 REF: 430 21. Under copyright laws, maps and architectural plans may be registered as ____. a. pantomimes and choreographic works c. literary works b. artistic works d. pictorial, graphic, and sculptural works 12