MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In a computer, ALU performs |
| A. | control computer operations |
| B. | arithmetic functions |
| C. | logic comparisons |
| D. | Both b and c |
| Answer» E. | |
| 2. |
A group of logic gates interconnected to form a logic circuit is called |
| A. | Combinational circuit |
| B. | Integrational circuit |
| C. | Application circuit |
| D. | Sequential circuit |
| Answer» B. Integrational circuit | |
| 3. |
Access time of cache memory is closer to that of processing speed of |
| A. | ROM |
| B. | RAM |
| C. | Secondary memory |
| D. | CPU |
| Answer» E. | |
| 4. |
Arithmetic logic units are designed to perform basic operations that can be classified into |
| A. | Three types |
| B. | Four types |
| C. | Five types |
| D. | Six types |
| Answer» C. Five types | |
| 5. |
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 the above |
| Answer» D. None of the above | |
| 6. |
If Booth’s Multiplication is performed on the numbers 22*3, then what is 3 referred to as __________ |
| A. | accumulator |
| B. | multiplicand |
| C. | quotient |
| D. | multiplier |
| Answer» E. | |
| 7. |
To recognize last record of program file, program uses |
| A. | header label |
| B. | trailer label |
| C. | end of file marker |
| D. | start of file marker |
| Answer» D. start of file marker | |
| 8. |
A type of core store that has a lower access time than the devices used for working store in thesame processor is known as |
| A. | Core memory |
| B. | Fast core |
| C. | Address register |
| D. | Buffer |
| Answer» D. Buffer | |
| 9. |
The number of sign bits in a 32-bit IEEE format is _______ |
| A. | 1 |
| B. | 11 |
| C. | 9 |
| D. | 23 |
| Answer» B. 11 | |
| 10. |
Multiple computers are connected a central host computer in |
| A. | Bus network |
| B. | Mesh network |
| C. | Star network |
| D. | Hub network |
| Answer» D. Hub network | |
| 11. |
Component of CPU which is responsible for comparing the contents of two pieces of data is |
| A. | ALU |
| B. | CU |
| C. | memory |
| D. | register |
| Answer» B. CU | |
| 12. |
Memory access in RISC architecture is limited to instructions |
| A. | CALL and RET |
| B. | PUSH and POP |
| C. | MOV and JMP |
| D. | STA and LDA |
| Answer» E. | |
| 13. |
What does the COMPUTER stands for? |
| A. | Commonly Operated Machines Used in Technical and Educational Research |
| B. | Commonly Occupied Machines Used in Technical and Educational Research |
| C. | Commonly Operated Machines Used in Technical and Environmental Research |
| D. | Commonly Oriented Machines Used in Technical and Educational Research |
| Answer» B. Commonly Occupied Machines Used in Technical and Educational Research | |
| 14. |
Label which contains information of various records in data file is classified as |
| A. | end of file marker |
| B. | start of file marker |
| C. | header label |
| D. | trailer label |
| Answer» E. | |
| 15. |
What is NaN in IEEE standards ? |
| A. | Not arithmetic |
| B. | Not a negation |
| C. | Not a number |
| D. | Not a Node |
| Answer» D. Not a Node | |
| 16. |
The terms in SOP are called ___________ |
| A. | max terms |
| B. | min terms |
| C. | mid terms |
| D. | sum terms |
| Answer» C. mid terms | |
| 17. |
The expression for involution law is _________ |
| A. | x+y=y+x |
| B. | x+1=1 |
| C. | (x’)’=x |
| D. | x.x=x |
| Answer» D. x.x=x | |
| 18. |
For minimizing memory and processor speed mismatch, a commonly used concept is known to be |
| A. | Read only memory |
| B. | Random access memory |
| C. | Virtual memory |
| D. | Cache memory |
| Answer» E. | |
| 19. |
A microprogram written as string of 0's and 1's is a |
| A. | Binary microprogram |
| B. | Symbolic microprogram |
| C. | Symbolic microinstruction |
| D. | Binary microinstruction |
| Answer» B. Symbolic microprogram | |
| 20. |
Which of the following memories has the shortest access times? |
| A. | Magnetic bubble memory |
| B. | RAM |
| C. | Cache memory |
| D. | Magnetic core memory |
| Answer» D. Magnetic core memory | |
| 21. |
A stack is |
| A. | A set of memory locations in R/WM reserved for storing information temporarily during the executionof computer |
| B. | A 16-bit memory address stored in the program counter |
| C. | An 8-bit register in the microprocessor |
| D. | A 16-bit register in the microprocessor |
| Answer» B. A 16-bit memory address stored in the program counter | |
| 22. |
Fill in the blank in the diagram. |
| A. | Input Unit |
| B. | Memory Unit |
| C. | Control Unit |
| D. | I/O Unit |
| Answer» D. I/O Unit | |
| 23. |
CISC processors are widely used in |
| A. | Workstations |
| B. | Supercomputers |
| C. | Mainframes |
| D. | Personal Computers |
| Answer» E. | |
| 24. |
What is the full form of The Data Transfer Instruction STA in Computer Basic ? |
| A. | Store Accumulator |
| B. | Send Accumulator |
| C. | Send Action |
| D. | Store Action |
| Answer» B. Send Accumulator | |
| 25. |
Operations of computer arithmetic and logic unit are directed by |
| A. | ALU itself |
| B. | program |
| C. | control unit |
| D. | memory unit |
| Answer» D. memory unit | |
| 26. |
Allocation of storage memory is always in multiples of |
| A. | Word length |
| B. | Data length |
| C. | Set length |
| D. | Instruction length |
| Answer» B. Data length | |
| 27. |
To speed up computation in RISC processors, they designed instructions to be retrieved from |
| A. | Main Memory |
| B. | Registers |
| C. | Secondary memory |
| D. | Disks |
| Answer» C. Secondary memory | |
| 28. |
Who built the first Mechanical Calculator |
| A. | Howard Aiken |
| B. | Blaise Pascal |
| C. | Joseph Marie Jacquard |
| D. | John Mauchly |
| Answer» C. Joseph Marie Jacquard | |
| 29. |
7’s complement of 432 is _________________ |
| A. | 432 |
| B. | 543 |
| C. | 345 |
| D. | 777 |
| Answer» D. 777 | |
| 30. |
When CPU executes an instruction, first step will be |
| A. | instruction fetch |
| B. | decode instruction |
| C. | execute instruction |
| D. | read instruction |
| Answer» B. decode instruction | |
| 31. |
Key characteristics of a system that serves in achieving system's objectives can be classified into |
| A. | Two characteristics |
| B. | Three characteristics |
| C. | Four characteristics |
| D. | Five characteristics |
| Answer» C. Four characteristics | |
| 32. |
Which of the following registers is used to keep track of address of the memory location where thenext instruction is located? |
| A. | Memory Address Register |
| B. | Memory Data Register |
| C. | Instruction Register |
| D. | Program Register |
| Answer» E. | |
| 33. |
A device that operates under the control of another device is called |
| A. | Stem |
| B. | Simulator |
| C. | Emulator |
| D. | Slave |
| Answer» E. | |
| 34. |
One extra bit is added on the left of a binary number, in case of Binary Multiplication using Booth’s Algorithm. |
| A. | True |
| B. | False |
| C. | May be |
| D. | Can't say |
| Answer» B. False | |
| 35. |
The number of literals in the expression F=X.Y’ + Z are _____________ |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» C. 2 | |
| 36. |
Which of the following are the two main components of the CPU? |
| A. | Control unit and registers |
| B. | ALU and bus |
| C. | Control Unit and ALU |
| D. | Registers and main memory |
| Answer» D. Registers and main memory | |
| 37. |
The min term when X=Y=Z=0 is _____________ |
| A. | x’+y’+z’ |
| B. | xyz |
| C. | x’y’z’ |
| D. | x+y+z |
| Answer» D. x+y+z | |
| 38. |
LSI stands for ___________ |
| A. | Large Scale Integration |
| B. | Large System Integration |
| C. | Large Symbolic Instruction |
| D. | Large Symbolic Integration |
| Answer» B. Large System Integration | |
| 39. |
All major calculation and comparisons in a computer are performed by |
| A. | Arithmetic Logic Unit |
| B. | Control Unit |
| C. | Central Processing Unit |
| D. | Linear Logic Unit |
| Answer» D. Linear Logic Unit | |
| 40. |
Descending Order of a data Hierarchy is |
| A. | Database – File – Record – Fields – Bytes – Bit |
| B. | Database – Record – Fields – File – Bytes – Bit |
| C. | Database – File – Record – Fields – Bit – Bytes |
| D. | Database – Record – File – Fields – Bytes – Bit |
| Answer» B. Database – Record – Fields – File – Bytes – Bit | |
| 41. |
Central Processing Unit is combination of |
| A. | Control and storage |
| B. | Control and output unit |
| C. | Arithmetic logic and input unit |
| D. | Arithmetic logic and control unit |
| Answer» E. | |
| 42. |
For components of a computer, control unit acts as a |
| A. | Central nervous system |
| B. | Central storing system |
| C. | Central communication system |
| D. | Central processing system |
| Answer» B. Central storing system | |
| 43. |
A communication junction of two or more network branches is said to be |
| A. | An entity |
| B. | An instance |
| C. | A node |
| D. | A cell |
| Answer» D. A cell | |
| 44. |
To locate a data item for storage is |
| A. | Database |
| B. | Fetch |
| C. | Field |
| D. | Feed |
| Answer» C. Field | |
| 45. |
A network that allows a single transmission medium to be shared by all nodes is known to be |
| A. | Multi-access star network |
| B. | Multi-access hub network |
| C. | Multi-access mesh network |
| D. | Multi-access bus network |
| Answer» E. | |
| 46. |
Brain of a computer is called |
| A. | CPU |
| B. | software |
| C. | hard disk |
| D. | memory |
| Answer» B. software | |
| 47. |
System with two states is classified as |
| A. | logic |
| B. | binary system |
| C. | binary logic |
| D. | system circuit |
| Answer» B. binary system | |
| 48. |
Functions performed by CPU are |
| A. | interprets and executes instructions |
| B. | communication with other parts of computer |
| C. | arithmetic and logic operations |
| D. | all of these |
| Answer» E. | |
| 49. |
Instruction in computer languages consists of |
| A. | OPCODE |
| B. | OPERAND |
| C. | Both OPCODE and OPERAND |
| D. | None of the above |
| Answer» D. None of the above | |
| 50. |
What is the responsibility of the logical unit in the CPU of a computer? |
| A. | To do math's works |
| B. | To compare numbers |
| C. | To produce result |
| D. | To control flow of information |
| Answer» C. To produce result | |