Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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What's the difference between an active security scanner and an inactive one?
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- What must happen before a system deadlocks?arrow_forwardA processor can decode encrypted data and system instructions in a number of different ways, and it can also execute instructions based on data that has been decoded and system instructions that have already been performed in a number of different ways. The rebuttals that have been sent in will be encrypted before the processor reads them. Is there any benefit to use a CPU in such a manner if at all possible? What are the system requirements, and how do they compare to the system's performance and efficiency?arrow_forwardA password is an example of... a. an edit control b. a software control c. an access control d. a digital control e. a physical controlarrow_forward
- Explain the checkpoint mechanism's purpose. How often should checkpoints be carried out? What effect does the number of checkpoints have on: What is the system's performance when there isn't a failure? How long does it take to recover from a system failure? How long does it take for a media (disc) failure to be repaired?arrow_forwardUnderstanding virtual machine security may be difficult.arrow_forwardWhat kind of security was most widespread in the early days of computers?arrow_forward
- The EPIC technique ensures the security of computer systems throughout the development phase via the use of active hardware metering. In their simplest form, what are these three methods, and how may they improve safety?arrow_forwardIt's possible that the phrase "virtual machine security" is difficult to comprehend.arrow_forwardThat same mechanism has a serious drawback, What is it?arrow_forward
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