McqMate
1. |
A collection of lines that connects several devices is called .............. |
A. | bus |
B. | peripheral connection wires |
C. | Both a and b |
D. | internal wires |
Answer» A. bus |
2. |
A complete microcomputer system consist of ........... |
A. | microprocessor |
B. | memory |
C. | peripheral equipment |
D. | all of the above |
Answer» D. all of the above |
3. |
PC Program Counter is also called ................... |
A. | instruction pointer |
B. | memory pointer |
C. | data counter |
D. | file pointer |
Answer» A. instruction pointer |
4. |
In a single byte how many bits will be there? |
A. | 8 |
B. | 16 |
C. | 4 |
D. | 32 |
Answer» A. 8 |
5. |
CPU does not perform the operation .................. |
A. | data transfer |
B. | logic operation |
C. | arithmetic operation |
D. | all of the above |
Answer» A. data transfer |
6. |
The access time of memory is ............... the time required for performing any single CPU operation. |
A. | Longer than |
B. | Shorter than |
C. | Negligible than |
D. | Same as |
Answer» A. Longer than |
7. |
Memory address refers to the successive memory words and the machine is called as ............ |
A. | word addressable |
B. | byte addressable |
C. | bit addressable |
D. | Terra byte addressable |
Answer» A. word addressable |
8. |
A microprogram written as string of 0's and 1's is a ............. |
A. | Symbolic microinstruction |
B. | binary microinstruction |
C. | symbolic microinstruction |
D. | binary micro-program |
Answer» D. binary micro-program |
9. |
A pipeline is like .................... |
A. | an automobile assembly line |
B. | house pipeline |
C. | both a and b |
D. | a gas line |
Answer» A. an automobile assembly line |
10. |
Data hazards occur when ..................... |
A. | Greater performance loss |
B. | Pipeline changes the order of read/write access to operands |
C. | Some functional unit is not fully pipelined |
D. | Machine size is limited |
Answer» B. Pipeline changes the order of read/write access to operands |
11. |
The time that elapses between the initiation of an operation and completion of that operation is called..... |
A. | throughput |
B. | memory response time |
C. | memory access time |
D. | execution time |
Answer» C. memory access time |
12. |
Interrupts which are initiated by an instruction are ............ |
A. | internal |
B. | external |
C. | hardware |
D. | software |
Answer» B. external |
13. |
A semiconductor memory constructed using bipolar transistors or MOS transistor stores information in the form of a ...................... |
A. | Flip-flop voltage levels |
B. | bit |
C. | byte |
D. | opcodes values |
Answer» A. Flip-flop voltage levels |
14. |
A simple way of performing I/O tasks is to use a method known as ...................... |
A. | program-controlled I/O |
B. | program-controlled input |
C. | program-controlled output |
D. | I/O operation |
Answer» A. program-controlled I/O |
15. |
Memory access in RISC architecture is limited to instructions ........ |
A. | CALL and RET |
B. | PUSH and POP |
C. | STA and LDA |
D. | MOV and JMP |
Answer» C. STA and LDA |
16. |
Striking key stores the corresponding character code in a 8-bit buffer register associated with the keyboard. This register is called as ........................ |
A. | DATAINOUT |
B. | DATAOUT |
C. | DATAIN |
D. | Both A and B |
Answer» C. DATAIN |
17. |
When the character is transferred to the processor, status control flag SIN is automatically cleared to ............................ |
A. | zero |
B. | one |
C. | two |
D. | yes |
Answer» A. zero |
18. |
A microprogram written as string of 0's and 1's is a ... |
A. | symbolic micro-instruction |
B. | binary micro-instruction |
C. | symbolic micro-instruction |
D. | binary microprogram |
Answer» D. binary microprogram |
19. |
An exception conditions in a computer system by an event external to the CPU is called ......... |
A. | Interrupt |
B. | halt |
C. | wait |
D. | process |
Answer» A. Interrupt |
20. |
When the CPU detects an interrupt, it then saves its ................... |
A. | Previous state |
B. | Next state |
C. | Current state |
D. | Both A and B |
Answer» C. Current state |
21. |
An exception condition in a computer system caused by an event external to the CPU is called ........ |
A. | Interrupt |
B. | Halt |
C. | Wait |
D. | Process |
Answer» A. Interrupt |
22. |
When the CPU detects an interrupt, it then saves its ............. |
A. | Previous State |
B. | Next State |
C. | Current State |
D. | Both A and B |
Answer» C. Current State |
23. |
A microprogram is sequencer perform the operation... |
A. | read |
B. | write |
C. | read and write |
D. | read and execute |
Answer» D. read and execute |
24. |
A computer program that converts an entire program into machine language at one time is called |
A. | interpreter |
B. | simulator |
C. | compiler |
D. | commander |
Answer» C. compiler |
25. |
The unit which decodes and translates each instruction and generates the necessary enable signals for ALU and other units is called .. |
A. | arithmetic unit |
B. | logical unit |
C. | control unit |
D. | CPU |
Answer» C. control unit |
26. |
State whether the following statement is True or False for cache memory.
|
A. | i- True, ii- False, iii-True |
B. | i- False, ii- True, iii-True |
C. | i-True, ii-True, iii-False |
D. | i- False, ii- False, iii-True |
Answer» C. i-True, ii-True, iii-False |
27. |
The channel which handles the multiple requests and multiplexes the data transfers from these devices a byte at a time is known as ..... |
A. | multiplexor channel |
B. | the selector channel |
C. | block multiplex channel |
D. | both A and C |
Answer» A. multiplexor channel |
28. |
The address mapping is done, when the program is initially loaded is called ...... |
A. | dynamic relocation |
B. | relocation |
C. | static relocation |
D. | dynamic as well as static relocation |
Answer» C. static relocation |
29. |
State whether the following statement is True or False for PCI bus.
|
A. | i- True, ii- False, iii-True |
B. | i- False, ii- True, iii-True |
C. | i-True, ii-True, iii-False |
D. | i- False, ii- False, iii-True |
Answer» C. i-True, ii-True, iii-False |
30. |
The I/O processor has a direct access to ....................... and contains a number of independent data channels. |
A. | main memory |
B. | secondary memory |
C. | cache |
D. | flash memory |
Answer» A. main memory |
31. |
The computer code for the interchange of information between terminal is .. |
A. | ASCII |
B. | BCD |
C. | EBCDIC |
D. | All of the above |
Answer» A. ASCII |
32. |
SIMD stands for .... |
A. | Single Instruction Stream Over Multiple Data Streams |
B. | Single Instruction Stream Over Minimum Data Streams |
C. | Single Instruction Stream Over Media Data Streams |
D. | Multiple Instruction Streams and Single Data Stream |
Answer» A. Single Instruction Stream Over Multiple Data Streams |
33. |
The NOR gate is complement of .. |
A. | AND gate |
B. | OR gate |
C. | NAND gate |
D. | NOT gate |
Answer» B. OR gate |
34. |
A .............. is a digital circuit that performs the inverse operation of decodes. |
A. | multiplexer |
B. | adder |
C. | subtractor |
D. | encoder |
Answer» D. encoder |
35. |
Pipelining increases the CPU instruction .......... |
A. | efficiency |
B. | latency |
C. | throughput |
D. | Both a and c |
Answer» C. throughput |
36. |
The ............... is a program whose function is to start the computer software operating when power is turned on. |
A. | Bootstrap loader |
B. | Multi programming |
C. | Loader |
D. | None of the above |
Answer» A. Bootstrap loader |
37. |
.................. is concerned with the way the hardware components operate to form computer system. |
A. | Computer organization |
B. | Computer design |
C. | Computer architecture |
D. | Computer implementation |
Answer» A. Computer organization |
38. |
Devices that are used primarily to transport data between the processor and the user are known as .... |
A. | Networking devices |
B. | Basic storage devices |
C. | Data presentation device |
D. | Data transfer device |
Answer» C. Data presentation device |
39. |
Which statement is valid about computer program? |
A. | It is understood by a computer |
B. | It is understood by programmer |
C. | It is understood to use |
D. | All of the above |
Answer» D. All of the above |
40. |
Access time is |
A. | Time to position the head over proper track |
B. | Time to position the head over proper sector |
C. | Time to position the head over proper cylinder |
D. | None of above |
Answer» A. Time to position the head over proper track |
41. |
Memory unit that communicates directly with the CPU is called the ........... |
A. | Main memory |
B. | Secondary memory |
C. | Auxiliary memory |
D. | Register |
Answer» A. Main memory |
42. |
CISC stands for ................ |
A. | Common Instruction Set Computers |
B. | Complex Instruction Set Compilers |
C. | Complex Instruction Set Computers |
D. | Compound Instruction Set Computers |
Answer» C. Complex Instruction Set Computers |
43. |
The communication between central system and the outside environment is done by |
A. | Input-output subsystem |
B. | Control system |
C. | Memory system |
D. | Logic system |
Answer» A. Input-output subsystem |
44. |
The register that keeps track of the instructions in the program stored in memory is .. |
A. | Control register |
B. | Program counter |
C. | Status register |
D. | Direct register |
Answer» B. Program counter |
45. |
................ is a small very speed register file maintained by the instruction fetch segment of the pipeline. |
A. | Branch Target Buffer |
B. | Loop buffer |
C. | Branch loop buffer |
D. | Target register |
Answer» B. Loop buffer |
46. |
In case of only one memory operand, when a second operand is needed, as in the case of an Add instruction, we use processor register called ......... |
A. | accumulator |
B. | register |
C. | operand |
D. | source |
Answer» D. source |
47. |
Data transfer between the main memory and the CPU register takes place through two registers namely ....... |
A. | general purpose register and MDR |
B. | accumulator and program counter |
C. | MAR and MDR |
D. | MAR and Accumulator |
Answer» C. MAR and MDR |
48. |
The pipeline operates on a stream of instruction by overlapping the phases of instruction cycle is ........ |
A. | Arithmetic pipeline |
B. | Instruction pipeline |
C. | Parallel pipeline |
D. | Multiple pipeline |
Answer» B. Instruction pipeline |
49. |
The instruction that cause transfer of data from one location to another without changing the binary information content are ... |
A. | Data transfer instruction |
B. | Data manipulation instruction |
C. | Register transfer instruction |
D. | Program control instruction |
Answer» A. Data transfer instruction |
50. |
The branch logic that provides decision making capabilities in the control unit is known as .. |
A. | Controlled transfer |
B. | Conditional transfer |
C. | Unconditional transfer |
D. | None of above |
Answer» C. Unconditional transfer |
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