Computer System Architecture
MCQ questions and answers
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Computer System Architecture MCQ (61)
| 1. | A binary digit is known as __________. |
| A | bit |
| B | byte |
| C | nibble |
| D | value |
| Answer: A | |
| 2. | A sequence of instructions used by the computer is called __________. |
| A | software |
| B | program |
| C | algorithm |
| D | information |
| Answer: B | |
| 3. | Computer design is concerned with the ____ design of the computer. |
| A | software |
| B | hardware |
| C | operating system |
| D | architecture |
| Answer: B | |
| 4. | __ is a concern with the structure and behavior of the computer as seen by the user? |
| A | Computer organization. |
| B | Computer design. |
| C | Computer architecture. |
| D | Computer technology. |
| Answer: C | |
| 5. | ___ gate produce the output 1 if input A and Input B are equal to 1? |
| A | OR |
| B | NAND |
| C | XOR |
| D | AND |
| Answer: D | |
| 6. | The output of the ______ gate is 1 if any input is 1 but excludes the combination when both inputs are 1 |
| A | NAND |
| B | NOR |
| C | Exclusive OR |
| D | OR |
| Answer: C | |
| 7. | The combinational circuit performs the arithmetic addition of the two bit is called __________. |
| A | Full Adder |
| B | Half Adder |
| C | S R Flip Flop |
| D | D Flip- Flop |
| Answer: B | |
| 8. | Which of the following combinational circuit that form arithmetic sum of 3 input bits? |
| A | Half Adder |
| B | Full Adder |
| C | Binary Adder |
| D | Flip-Flop |
| Answer: B | |
| 9. | ______ is an electronic circuit with two stable states that can be used to store binary data. |
| A | Gate |
| B | Full Adder |
| C | Half Adder |
| D | Flip-Flop |
| Answer: D | |
| 10. | __________ circuit is a connected arrangement of the logic gates with the set of input and output gates? |
| A | Combinational |
| B | Sequential |
| C | Half Adder |
| D | Full Adder |
| Answer: A | |
| 11. | __________ circuit is an interconnection of the flip-flops and gate. |
| A | Full Adder |
| B | D flip-flop |
| C | Combinational |
| D | Sequential |
| Answer: D | |
| 12. | Which type of IC includes the number of the gate is usually less than limited by a number of pins available in the IC? |
| A | MSI |
| B | SSI |
| C | LSI |
| D | TTL |
| Answer: B | |
| 13. | Which device includes 10 to 200 gates in a single package? |
| A | MSI |
| B | VLSI |
| C | LSI |
| D | SSI |
| Answer: A | |
| 14. | Which device is contain the gates between 200 to a few thousand gates in a single package? |
| A | SSI |
| B | MSI |
| C | LSI |
| D | VLSI |
| Answer: C | |
| 15. | Which device contains the thousands of gate within the single package? |
| A | SSI |
| B | MSI |
| C | VLSI |
| D | LSI |
| Answer: C | |
| 16. | ____ logic family is preferable in a system design which is based on the low power consumption? |
| A | CMOS |
| B | MOS |
| C | ECL |
| D | TTL |
| Answer: A | |
| 17. | In electronics, _____ is a high-speed integrated circuit bipolar transistor logic family |
| A | Transistor-transistor logic (TTL) |
| B | emitter-coupled logic (ECL) |
| C | metal-oxide-semiconductor (MOS ) |
| D | complementary metal-oxide-semiconductor (CMOS) |
| Answer: B | |
| 18. | Which is an unipolar transistor? |
| A | CMOS |
| B | ECL |
| C | MOS |
| D | Decoder |
| Answer: C | |
| 19. | ECL stands for |
| A | Electronic Coupled Logic |
| B | Emitter-Coupled Logic |
| C | Electro Complementary Logic |
| D | Electronic Computer Logic |
| Answer: B | |
| 20. | _____ is a device used to select a single line of input from multiple input lines using control signals. |
| A | Decoder |
| B | Encoder |
| C | Multiplexer |
| D | Full Adder |
| Answer: C | |
| 21. | The multiplexer is also called as __________. |
| A | decoder |
| B | TTL |
| C | half adder |
| D | data selecter |
| Answer: D | |
| 22. | A _____ is a group of flip-flops with each flip-flop capable of storing one bit of information. |
| A | register |
| B | capacitor |
| C | transistor |
| D | gate |
| Answer: A | |
| 23. | A register is capable of shifting its binary information in one or both directions is called __________. |
| A | binary counter |
| B | shift register |
| C | unidirectional shift register |
| D | none |
| Answer: B | |
| 24. | _____is a sequential circuit which is used for a counting the pulses. |
| A | shift register |
| B | multiplexer |
| C | counter |
| D | adder |
| Answer: C | |
| 25. | The memory store the binary information in the group of bits is called __________. |
| A | byte |
| B | cell |
| C | KB |
| D | words |
| Answer: D | |
| 26. | Which memory type uses ultraviolet light to erase the memory? |
| A | RAM |
| B | ROM |
| C | EEPROM |
| D | PROM |
| Answer: C | |
| 27. | Convert 17 decimal no into the binary no __________. |
| A | 10001 |
| B | 01001 |
| C | 10011 |
| D | 01111 |
| Answer: A | |
| 28. | Convert 43 into the binary no __________. |
| A | 111011 |
| B | 101011 |
| C | 101010 |
| D | 101110 |
| Answer: B | |
| 29. | Convert 10111 in a decimal no __________. |
| A | 23 |
| B | 24 |
| C | 46 |
| D | 26 |
| Answer: A | |
| 30. | ______ operation means transfer from data from CPU to a Memory Unit, such as RAM/Disk. |
| A | read |
| B | write |
| C | micro |
| D | none |
| Answer: B | |
| 31. | Which register is used to store the address of an instructions? |
| A | Data register. |
| B | Address register. |
| C | Accumulator |
| D | Program counter |
| Answer: D | |
| 32. | Which register is used to hold the memory operand? |
| A | Program counter |
| B | Input register |
| C | Data register |
| D | Instruction register. |
| Answer: C | |
| 33. | _____ register is called as a processor register? |
| A | Input register |
| B | Output register |
| C | Program counter |
| D | Accumulator |
| Answer: D | |
| 34. | ______ register is used to hold an instruction code? |
| A | Data register |
| B | Instruction register |
| C | Program counter |
| D | Temporary register |
| Answer: B | |
| 35. | ______ is a register in a computer processor that contains the address (location) of the instruction being executed at the current time. |
| A | Program counter |
| B | Data register |
| C | Accumulator |
| D | Instruction register. |
| Answer: A | |
| 36. | Which program is used to translate the symbolic instructions into the binary coded instructions? |
| A | Compiler |
| B | Assembler |
| C | Accumulator |
| D | None |
| Answer: B | |
| 37. | As the instructions of a source module are being assembled, the ______ keeps track of the current location in storage. |
| A | instruction register |
| B | MAR |
| C | location counter |
| D | program counter |
| Answer: C | |
| 38. | _______ specifies the address of the micro-instruction, and the control data register holds the micro-instruction read from memory. |
| A | Memory Address Register |
| B | Data register |
| C | Pipeline register |
| D | Control Memory Address Register |
| Answer: D | |
| 39. | Which register holds the address of stack? |
| A | Program counter |
| B | Location counter |
| C | Pipeline register |
| D | Stack pointer |
| Answer: D | |
| 40. | ________ uses instructions that include the address of a value that points to the effective address of the operand. |
| A | Relative Addressing Mode |
| B | Indexed Addressing Mode |
| C | Direct Addressing Mode |
| D | Indirect Addressing Mode |
| Answer: D | |
| 41. | In which mode, an effective address of the operand is present in the instruction itself. |
| A | Direct Addressing Mode |
| B | Indirect Addressing Mode |
| C | Relative Addressing Mode |
| D | Indexed Addressing Mode |
| Answer: A | |
| 42. | _____ is a version of displacement addressing mode. In this, the contents of PC(Program Counter) is added to address part of instruction to obtain the effective address. |
| A | Relative Addressing Mode |
| B | Indexed Addressing Mode |
| C | Direct Addressing Mode |
| D | Indirect Addressing Mode |
| Answer: A | |
| 43. | _____ is the register, acts as a address holder of the base storage location from where the data was stored continuously. |
| A | Direct |
| B | Indirect |
| C | Indexed |
| D | Base Register |
| Answer: D | |
| 44. | CISC stands for |
| A | Complex Instruction Set Computer |
| B | Complementary Instruction Set Computer |
| C | Complex Instruction Set Commond |
| D | Command Instruction Set Computer |
| Answer: A | |
| 45. | ______ is used to reduce the execution time by simplifying the instruction set. |
| A | CISC |
| B | RISC |
| C | pipelining |
| D | none |
| Answer: B | |
| 46. | _____ allows storing and executing instructions in an orderly process and it is a technique where multiple instructions are overlapped during execution. |
| A | Array processing |
| B | Vector processing |
| C | Pipeline processing |
| D | Parallel processing |
| Answer: C | |
| 47. | In computer or memory technology, a _____ is a signal that is sent that validates data or other signals on adjacent parallel lines. |
| A | Handshaking |
| B | Strobe |
| C | Timing diagram |
| D | None |
| Answer: B | |
| 48. | The __________ interface is used to transfer the data in and out from the memory unit through the bus. |
| A | Programmed I/O |
| B | Interrupt initiated I/O |
| C | Direct Memory Access |
| D | IOP |
| Answer: C | |
| 49. | Which type of memory devices are known as auxiliary memory? |
| A | Magnetic disk |
| B | Tapes |
| C | A and B |
| D | RAM |
| Answer: C | |
| 50. | ____ memory is an extremely fast memory type that acts as a buffer between RAM and the CPU and it is used to reduce the average time to access data from the Main memory. |
| A | RAM |
| B | ROM |
| C | Cache |
| D | Auxiliary |
| Answer: C | |
| 51. | The __________ is a program, whose function is to start the computer operating system when power is turned on. |
| A | MBR |
| B | bootstrap loader |
| C | linker |
| D | loader |
| Answer: B | |
| 52. | A memory unit is accessed by content known as__________. |
| A | associative memory |
| B | content addressable memory |
| C | both A and B |
| D | program counter |
| Answer: C | |
| 53. | ______ is the tendency of a processor to access the same set of memory locations repetitively over a short period of time. |
| A | Locality of reference or Principle of locality |
| B | Pointer |
| C | Cache |
| D | none |
| Answer: A | |
| 54. | ____ unit is used measure the performance of the cache memory. |
| A | baud rate |
| B | hit ratio |
| C | mapping |
| D | none of these |
| Answer: B | |
| 55. | The transformation of data from the main memory to cache memory is called as __________. |
| A | pipeline |
| B | vector |
| C | mapping |
| D | addressing mode |
| Answer: C | |
| 56. | Which address is used by the program? |
| A | Virtual address |
| B | Physical address |
| C | Mapping |
| D | None of these |
| Answer: A | |
| 57. | Which address is used by the main memory? |
| A | location |
| B | physical address |
| C | both A and B |
| D | virtual address |
| Answer: C | |
| 58. | Which bus is used to interconnect devices that comprise a computer system where the timing of transactions between devices is under the control of a synchronizing clock signal |
| A | synchronous |
| B | asynchronous |
| C | control bus |
| D | data bus |
| Answer: A | |
| 59. | __________ RAM store the binary information in the form of electric charge which is applied to capacitors. |
| A | Static |
| B | Dynamic |
| C | Volatile |
| D | None of the above |
| Answer: B | |
| 60. | Which is the fastest memory? |
| A | RAM |
| B | ROM |
| C | Cache |
| D | EEPROM |
| Answer: C | |
| 61. | Which of the following is not a printer language? |
| A | PCL (Printer Command Language) |
| B | Postscript |
| C | GDI (Graphics Device Interface) |
| D | HPGL(Hewlett Packard Graphic Language) |
| Answer: C |
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