MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Compilers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
IN_COMPUTERS,_SUBTRACTION_IS_CARRIED_OUT_GENERALLY_BY____?$ |
| A. | 1’s complement method |
| B. | 2’s complement method |
| C. | signed magnitude method |
| D. | BCD subtraction method |
| Answer» C. signed magnitude method | |
| 2. |
PSW is saved in stack when there is a ____? |
| A. | Interrupt recognized |
| B. | Execution of RST instruction |
| C. | Execution of CALL instruction |
| D. | All of these |
| Answer» B. Execution of RST instruction | |
| 3. |
The multiplicand register & multiplier register of a hardware circuit implementing booth’s algorithm have (11101) & (1100). The result shall be ______$ |
| A. | (812)10 |
| B. | (-12)10 |
| C. | (12)10 |
| D. | (-812)10 |
| Answer» B. (-12)10 | |
| 4. |
The circuit converting binary data in to decimal is_____ |
| A. | Encoder |
| B. | Multiplexer |
| C. | Decoder |
| D. | Code converter |
| Answer» E. | |
| 5. |
A three input NOR gate gives logic high output only when_____ |
| A. | One input is high |
| B. | One input is low |
| C. | Two input are low |
| D. | All input are high |
| Answer» E. | |
| 6. |
N bits in operation code imply that there are ___________ possible distinctOperators. |
| A. | 2n |
| B. | 2n |
| C. | n/2 |
| D. | n2 |
| Answer» C. n/2 | |
| 7. |
_________ register keeps tracks of the instructions stored in program stored in memory. |
| A. | AR (Address Register) |
| B. | XR (Index Register) |
| C. | PC (Program Counter) |
| D. | AC (Accumulator) |
| Answer» D. AC (Accumulator) | |
| 8. |
Memory unit accessed by content is called______ |
| A. | Read only memory |
| B. | Programmable Memory |
| C. | Virtual Memory |
| D. | Associative Memory |
| Answer» E. | |
| 9. |
‘Aging registers’ are _______$ |
| A. | Counters which indicate how long ago their associated pages have been Referenced. |
| B. | Registers which keep track of when the program was last accessed |
| C. | Counters to keep track of last accessed instruction |
| D. | Counters to keep track of the latest data structures referred |
| Answer» B. Registers which keep track of when the program was last accessed | |
| 10. |
The instruction ‘ORG O’ is a______ |
| A. | Machine Instruction |
| B. | Pseudo instruction |
| C. | High level instruction |
| D. | Memory instruction |
| Answer» C. High level instruction | |