MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Microprocessors knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
THE_INSTRUCTION_AT_WHICH_THE_EXCEPTION_IS_GENERATED,_BUT_THE_PROCESSOR_EXTENSION_REGISTERS_CONTAIN_THE_ADDRESS_OF_FAILING_INSTRUCTION_IS?$ |
| A. | LTR |
| B. | INS |
| C. | CTS |
| D. | ESC |
| Answer» E. | |
| 2. |
Which of the following is protected mode exception?$ |
| A. | double exception detected |
| B. | invalid task state segment |
| C. | stack segment overrun |
| D. | all of the mentioned |
| Answer» E. | |
| 3. |
The_exception_that_has_no_error_code_on_a_stack_is$ |
| A. | double exception detected |
| B. | processor extension segment overrun |
| C. | invalid task state segment |
| D. | stack segment overrun |
| Answer» C. invalid task state segment | |
| 4. |
While executing the instruction IN/OUT, the condition of CPL i? |
| A. | CPL = 0 |
| B. | CPL < IOPL |
| C. | CPL > IOPL |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 5. |
The condition, “CPL not equals to zero” satisfies when executing the instruction$ |
| A. | LIDT |
| B. | LGDT |
| C. | LTR |
| D. | All of the mentioned |
| Answer» E. | |
| 6. |
If CPL is greater than zero, then the instruction that remains unaffected is |
| A. | IRET |
| B. | POPF |
| C. | IF |
| D. | IRET and POPF |
| Answer» D. IRET and POPF | |
| 7. |
If CPL is not of the required privilege level, then the instructions that get affected is |
| A. | IRET |
| B. | POPF |
| C. | IRET and POPF |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 8. |
The mechanism that is executed at certain privilege levels, determined by CPL (Current Privilege Level) and I/O privilege level (IOPL) is |
| A. | restricted use of segments |
| B. | restricted accesses to segments |
| C. | privileged instructions or operations |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 9. |
The mechanism that is accomplished using descriptor usages limitations and rules of privilege check is |
| A. | privileged instruction check |
| B. | operation reference check |
| C. | segment load check |
| D. | none of the mentioned |
| Answer» C. segment load check | |
| 10. |
The Local descriptor table (LDT) and Global descriptor table (GDT) are present in |
| A. | privileged instruction check |
| B. | operation reference check |
| C. | segment load check |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 11. |
The mechanism to provide protection, that is accomplished with the help of read/write privileges is |
| A. | restricted use of segments |
| B. | restricted accesses to segments |
| C. | privileged instructions |
| D. | privileged operations |
| Answer» B. restricted accesses to segments | |