MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Microprocessors knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In LGDT instruction, while loading 6 bytes, the first word is loaded into the field of |
| A. | LIMIT field |
| B. | BASE field |
| C. | Either LIMIT or BASE field |
| D. | None of the mentioned |
| Answer» B. BASE field | |
| 2. |
The instruction that loads 6 bytes from a memory block, pointed to by the effective address of the operand, into global descriptor table register is |
| A. | LLDT |
| B. | SGDT |
| C. | LGDT |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
The instruction that determines whether the segment pointed to, by a 16-bit register, can be accessed from the current privilege level is |
| A. | RPL |
| B. | CPL |
| C. | ARPL |
| D. | VERR |
| Answer» E. | |
| 4. |
The CLTS (Clear Task Switch Flag) instruction records every execution of WAIT and ESC and is trapped if the flag(s) |
| A. | PE (Protection Enable) and TS (task switch) flags are set |
| B. | Emulate Processor extension flag is set |
| C. | MP flag and task switched flag is set |
| D. | PE and MP flag is set |
| Answer» D. PE and MP flag is set | |
| 5. |
In Rotate source, count instructions, if the CF is equal to MSB of operand (source) then |
| A. | TF is cleared |
| B. | OF is cleared |
| C. | TF is set |
| D. | OF is set |
| Answer» C. TF is set | |