Q. By using privilege mechanism the protection from unauthorized accesses is done to

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Q. The task privilege level at the instant of execution is called

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Q. Once the CPL is selected, it can be changed by

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Q. The data segments defined in GDT (global descriptor table) and the LDT (local descriptor table) can be accessed by a task with

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Q. A task with privilege level 0, doesn’t refer to all the lower level privilege descriptors in

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Q. The selector RPL that uses a less trusted privilege than the current privilege level for further use is known as

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Q. The effective privilege level is

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Q. The task requesting an access to a descriptor is allowed to access after checking the

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Q. A CALL instruction can reference only a code segment descriptor with

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Q. The RPL of a selector that referred to the code descriptor must have

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Q. The instruction that refers to only code segment descriptors with DPL equal to or less than the task CPL is

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Q. When a JUMP instruction references a Task State Segment(TSS) descriptor, then DPL must be

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Q. The data segment access refers to

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Q. An exception is generated when

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Q. The mechanism to provide protection, that is accomplished with the help of read/write privileges is

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Q. The Local descriptor table (LDT) and Global descriptor table (GDT) are present in

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Q. The mechanism that is accomplished using descriptor usages limitations and rules of privilege check is

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Q. The mechanism that is executed at certain privilege levels, determined by CPL (Current Privilege Level) and I/O privilege level (IOPL) is

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Q. If CPL is not of the required privilege level, then the instructions that get affected is

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Q. If CPL is greater than zero, then the instruction that remains unaffected is

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