Sticky bit in Solaris
Describe sticky bit in Solaris?
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If a directory is writable & has sticky bit is set, files inside directory removed or renamed only if one or more following is true:
1. The user owns the file
2. The user owns the directory
3. The file writable by the User
4. The user is "root"
5. chmod 1777 project_dir
The sticky bit is displayed like the letter t in the execute field for 'others'. It is a permission bit which protects the files inside a Directory. If the directory has sticky bit set, a file can be removed by the owner of the file, the owner of the directory or root. It prevents a user from deleting other user’s files from public directories.
Describe the operation of a distributed transaction manager. If you had to implement a transaction manager what would you do to try to make sure it had the widest possible applicability to different vender resource managers such as DBMS?
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Code Coverage Heuristics: In many industries, 100% branch coverage is considered a minimum requirement for test adequacy (Bezier 1990). Branch coverage requires that at every branching point in the program all possible branches be taken at least once.
Below is a drawing of the wall of a refrigarator which consists of 3 layers- 0.2 cm thick steel walls on both sides of 4 cm of glass wool. This refrigarator was initially turned off so the temperature inside and out side was the same and the flux of heat through the w
Search Strategies in model checking: Model checkers such as JPF and SPIN support a number of search strategies used to explore the state space of the program. Two of these strategies are the most well-known—Depth-First Search an
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