Quiz 7
Recovering file fragments is called ________, also known as salvaging outside North America.
Carving
_______ compression compresses data by permanently discarding bits of information in the file.
Lossy
A graphics program creates and saves one of three image files: bitmap, vector, or...
Metafile
______ is related to the density of pixels on your screen and depends on a combination of hardware and software.
Screen resolution
A ______ can identify the file format from the file header and indicate whether the file contains an image.
Steganalysis tool
______ uses a host file to cover the contents of a secret message.
Steganography
The two major forms of hiding information in a graphics file are insertion and...
Substitution
The first 3 bytes of an XIF file are the same as a ________, followed by other hexadecimal values that distinguish it from a TIF file.
TIF file
Another form of lossy compression, _______, uses complex algorithms to determine what data to discard based on vectors in the graphics file.
Vector quantization
The simplest way to access a file header is to use a(n) _______ such as WinHex.
hexadecimal editor