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[Access Control Policy]: A computer system usually implements the exception handling mechanism. Like the interrupt handling mechanism, the original program flow will be stopped until the exception is handled. For example, when a program is calculating c-a/b, and for some reason b was set to O, the program will encounter the "Division by Zero" exception. The control will be given to the exception handler, and the recovery action could be "report only", "return to the next instruction", "purge the program", etc., based on the severity of the problem. From the abov information, we can conclude: A computer system can integrate both Discretionary Access Control (DAC) and Mandatory Access Control (MAC) security policies An administrator can inhibit the exception handling The exception handling mechanism is like the Mandatory Access Control security policy, no matter which user caused the exception (even the administrator), the program should be stopped, and the control should be given to the exception handler. The exception handler is like the Reference Monitor in the Access Control architecture or

[Access Control Policy]: A computer system usually implements the exception handling mechanism. Like the interrupt handling mechanism, the original program flow will be stopped until the exception is handled. For example, when a program is calculating c-a/b, and for some reason b was set to O, the program will encounter the "Division by Zero" exception. The control will be given to the exception handler, and the recovery action could be "report only", "return to the next instruction", "purge the program", etc., based on the severity of the problem. From the abov information, we can conclude: A computer system can integrate both Discretionary Access Control (DAC) and Mandatory Access Control (MAC) security policies An administrator can inhibit the exception handling The exception handling mechanism is like the Mandatory Access Control security policy, no matter which user caused the exception (even the administrator), the program should be stopped, and the control should be given to the exception handler. The exception handler is like the Reference Monitor in the Access Control architecture or

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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[Access Control Policy]: A computer system usually implements the exception handling mechanism. Like the interrupt handling mechanism, the original program flow will be stopped until the exception is handled. For example, when a program is calculating c=a/b, and for some reason b was set to 0, the program will encounter the "Division by Zero" exception. The control will be given to the exception handler, and the recovery action could be "report only", "return to the next instruction", "purge the program", etc., based on the severity of the problem. From the abov information, we can conclude: A computer system can integrate both Discretionary Access Control (DAC) and Mandatory Access Control (MAC) security policies An administrator can inhibit the exception handling The exception handling mechanism is like the Mandatory Access Control security policy, no matter which user caused the exception (even the administrator), the program should be stopped, and the control should be given to the exception handler. The exception handler is like the Reference Monitor in the Access Control architecture or part of it
Transcribed Image Text:[Access Control Policy]: A computer system usually implements the exception handling mechanism. Like the interrupt handling mechanism, the original program flow will be stopped until the exception is handled. For example, when a program is calculating c=a/b, and for some reason b was set to 0, the program will encounter the "Division by Zero" exception. The control will be given to the exception handler, and the recovery action could be "report only", "return to the next instruction", "purge the program", etc., based on the severity of the problem. From the abov information, we can conclude: A computer system can integrate both Discretionary Access Control (DAC) and Mandatory Access Control (MAC) security policies An administrator can inhibit the exception handling The exception handling mechanism is like the Mandatory Access Control security policy, no matter which user caused the exception (even the administrator), the program should be stopped, and the control should be given to the exception handler. The exception handler is like the Reference Monitor in the Access Control architecture or part of it
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