A disk rotates at 7,200 rpm and the head is over a track 2 inches from the center. What are the corresponding angular and linear velocities?
What will be an ideal response?
The angular velocity is 7,200 × 360 = 2,592,000°/minute or 43,200°/s. The linear velocity of a track two inches from the center is distance/time = 2×?×2 inch/8.33ms = 1.50 × 103 inch/sec (85 mph).
Computer Science & Information Technology
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Joe needs to track employees who log into a confidential database and edit files. In the past, critical files have been edited, and no one admits to making the edits. Which of the following does Joe need to implement in order to enforce accountability?
A. Non-repudiation B. Fault tolerance C. Hashing D. Redundancy
Computer Science & Information Technology
All Linux files are organized in directories that are connected to each other in a tree-like structure.
Answer the following statement true (T) or false (F)
Computer Science & Information Technology