MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Organization knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
___________ directive is used to name the register used for execution of an instruction. |
| A. | ASSIGN |
| B. | RN |
| C. | NAME |
| D. | DECLARE |
| Answer» C. NAME | |
| 2. |
___________ directives are used to initialize operands. |
| A. | INT |
| B. | DATAWORD |
| C. | RESERVE |
| D. | DCD |
| Answer» E. | |
| 3. |
___________ directive specifies the start of the execution. |
| A. | START |
| B. | ENTRY |
| C. | MAIN |
| D. | ORIGIN |
| Answer» C. MAIN | |
| 4. |
__________ directive is used to indicate the beginning of the program instruction or data. |
| A. | EQU |
| B. | START |
| C. | AREA |
| D. | SPACE |
| Answer» D. SPACE | |
| 5. |
Which of the two instructions sets the condition flag upon execution?i) ADDS R0,R1,R2 |
| A. | nii) ADD R0,R1,R2 |
| B. | i |
| C. | ii |
| D. | Both i and ii |
| E. | Insufficient data |
| Answer» B. i | |
| 6. |
The condition to check whether the branch should happen or not is given by ____________ |
| A. | The lower order 8 bits of the instruction |
| B. | The higher order 4 bits of the instruction |
| C. | The lower order 4 bits of the instruction |
| D. | The higher order 8 bits of the instruction |
| Answer» C. The lower order 4 bits of the instruction | |
| 7. |
The BEQ instructions is used ____________ |
| A. | To check the equality condition between the operands and then branch |
| B. | To check if the Operand is greater than the condition value and then branch |
| C. | To check if the flag Z is set to 1 and then causes branch |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 8. |
The offset used in the conditional branching is __________ bit. |
| A. | 24 |
| B. | 32 |
| C. | 16 |
| D. | 8 |
| Answer» B. 32 | |
| 9. |
_________ instruction is used to get the 1 s complement of the operand. |
| A. | COMP |
| B. | BIC |
| C. | ~CMP |
| D. | MVN |
| Answer» E. | |
| 10. |
The ability to shift or rotate in the same instruction along with other operation is performed with the help of _________ |
| A. | Switching circuit |
| B. | Barrel switcher circuit |
| C. | Integrated Switching circuit |
| D. | Multiplexer circuit |
| Answer» C. Integrated Switching circuit | |
| 11. |
The instruction, MLA R0,R1,R2,R3 performs _________ |
| A. | R0<-[R1]+[R2]+[R3] |
| B. | R3<-[R0]+[R1]+[R2] |
| C. | R0<-[R1]*[R2]+[R3] |
| D. | R3<-[R0]*[R1]+[R2] |
| Answer» D. R3<-[R0]*[R1]+[R2] | |
| 12. |
The Instruction, LDM R10!, {R0,R1,R6,R7} ______ |
| A. | Loads the contents of R10 into R1, R0, R6 and R7 |
| B. | Creates a copy of the contents of R10 in the other registers except for the above mentioned ones |
| C. | Loads the contents of the registers R1, R0, R6 and R7 to R10 |
| D. | Writes the contents of R10 into the above mentioned registers and clears R10 |
| Answer» B. Creates a copy of the contents of R10 in the other registers except for the above mentioned ones | |
| 13. |
The instructions which are used to load or store multiple operands are called as __________ |
| A. | Banked instructions |
| B. | Lump transfer instructions |
| C. | Block transfer instructions |
| D. | DMA instructions |
| Answer» D. DMA instructions | |
| 14. |
___________ symbol is used to signify write back mode. |
| A. | # |
| B. | ^ |
| C. | & |
| D. | ! |
| Answer» E. | |