File ________ is the process of identifying a file by certain characteristics, such as a file header or footer, rather than by the file extension or metadata
Fill in the blank(s) with the appropriate word(s).
Answer: Carving. For example, a suspect could try to hide images from investigators by changing the file extension of a picture from .jpg to .dll. When conducting a search using Windows File Explorer, you will not find the file, and even trying to open the file will be unsuccessful because the association between the file and the appropriate application has been broken. Nevertheless in our example, the file is still a picture. The file header for the picture will not have changed.
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which are horizontally fragmented on the department number, deptNo. Assume there is an integrity constraint that requires that every member of staff earns less than every manager in the same department. Further assume that we wish to insert the tuple (‘S9100’, ‘John Smith’, ‘1-May-1960’, 30000, ‘D1’) into the Staff relation. Under what conditions can this constraint be checked locally?
Consider the following two relations: ``` Staff (staffNo, name, DOB, salary, deptNo) Department (deptNo, deptName, managerStaffNo) ```
What is the most important benefit of a proxy server?
What will be an ideal response?
____________________ came out not long after GSM, but used a spread-spectrum form of transmission that was totally incompatible with GSM's TDMA
Fill in the blank(s) with the appropriate word(s).
Which of the following structures are used to add explanatory notes into a method?
a. Do in order b. Do together c. Note d. Comment e. None of these