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Explain Protection mechanism.
Protection mechanism: The subsequent mechanisms are commonly utilized for protecting files having programs and data.
(a) Access controls lists (ACL's) (b) Capability lists (C- lists)
These lists are utilized to make sure that uses only access files that are explicitly authorized access. These files contain
(i) files created by a user herself/himself
(ii) files owned by others, for that a user process explicit access privileged granted through other owners.
What is the advantage of wrapping database calls into MTS transactions? Ans) If database calls are made within the context of a transaction, aborting the transaction will undo a
Q. How can data and instructions are put into the computers? The data and instructions to a computer are provided by external environment. It determines that input devices are
Binary is an alternative number system which works very good for computers. Humans have ten fingers; that's probably why we use ten digits (0, 1, 2, 3, 4, 5, 6, 7, 8, and 9) in our
Explain User Datagram Protocol. UDP(User Datagram Protocol) : User Datagram Protocol uses a connectionless communication paradigm. It is an application using UDP does not re
Paging supervisor: This part of the operating system built and manages the page tables. If the due to dynamic address translation hardware a page fault occurs exception then
Simple codes for robot using applet
Q. Signaling PVM process? int pvm_sendsig( int tid, int signum ) Transmits a signal to other PVM process. tid is task identifier of PVM process to receive signal.
Place some text wherever. Then click "Create path from text" in the "Text tool option" window. Then use "Edit" -> "Stroke path" and choose the appropriate options in the following
what is ardiuno explain its working
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