McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Science in Computer Science FY (BSc CS) , Bachelor of Science in Information Technology FY (BSc IT) , Bachelor of Computer Applications (BCA) , Bachelor of Science in Information Technology (BSc IT) , Bachelor of Science in Computer Science (BSc CS) .
| 101. |
A microprocessor retries instructions from : |
| A. | control memory |
| B. | cache memory |
| C. | main memory |
| D. | virtual memory |
| Answer» C. main memory | |
| 102. |
The CPU sends out a ____ signal to indicate that valid data is available on the data bus: |
| A. | read |
| B. | write |
| C. | both a and b |
| D. | none of these |
| Answer» B. write | |
| 103. |
The CPU removes the ___ signal to complete the memory write operation: |
| A. | read |
| B. | write |
| C. | both a and b |
| D. | none of these |
| Answer» A. read | |
| 104. |
BIU STAND FOR: |
| A. | bus interface unit |
| B. | bess interface unit |
| C. | a and b |
| D. | none of these |
| Answer» A. bus interface unit | |
| 105. |
EU STAND FOR: |
| A. | execution unit |
| B. | execute unit |
| C. | exchange unit |
| D. | none of these |
| Answer» A. execution unit | |
| 106. |
Eight of the register are known as: |
| A. | general- purpose register |
| B. | pointer or index registers |
| C. | segment registers |
| D. | other register |
| Answer» A. general- purpose register | |
| 107. |
The four index register can be used for: |
| A. | arithmetic operation |
| B. | multipulation operation |
| C. | subtraction operation |
| D. | all of these |
| Answer» A. arithmetic operation | |
| 108. |
IP Stand for: |
| A. | instruction pointer |
| B. | instruction purpose |
| C. | instruction paints |
| D. | none of these |
| Answer» A. instruction pointer | |
| 109. |
CS Stand for: |
| A. | code segment |
| B. | coot segment |
| C. | cost segment |
| D. | counter segment |
| Answer» A. code segment | |
| 110. |
DS Stand for: |
| A. | data segment |
| B. | direct segment |
| C. | declare segment |
| D. | divide segment |
| Answer» A. data segment | |
| 111. |
The acculatator is 16 bit wide and is called: |
| A. | ax |
| B. | ah |
| C. | al |
| D. | dl |
| Answer» A. ax | |
| 112. |
How many bits the instruction pointer is wide: |
| A. | 16 bit |
| B. | 32 bit |
| C. | 64 bit |
| D. | 128 bit |
| Answer» A. 16 bit | |
| 113. |
How many type of addressing in memory: |
| A. | logical address |
| B. | physical address |
| C. | both a and b |
| D. | none of these |
| Answer» C. both a and b | |
| 114. |
The size of each segment in 8086 is: |
| A. | 64 kb |
| B. | 24 kb |
| C. | 50 kb |
| D. | 16kb |
| Answer» A. 64 kb | |
| 115. |
The _______ address of a memory is a 20 bit address for the 8086 microprocessor: |
| A. | physical |
| B. | logical |
| C. | both |
| D. | none of these |
| Answer» A. physical | |
| 116. |
The pin configuration of 8086 is available in the________: |
| A. | 40 pin |
| B. | 50 pin |
| C. | 30 pin |
| D. | 20 pin |
| Answer» A. 40 pin | |
| 117. |
DIP stand for: |
| A. | deal inline package |
| B. | dual inline package |
| C. | direct inline package |
| D. | digital inline package |
| Answer» B. dual inline package | |
| 118. |
EA stand for: |
| A. | effective address |
| B. | electrical address |
| C. | effect address |
| D. | none of these |
| Answer» A. effective address | |
| 119. |
BP stand for: |
| A. | bit pointer |
| B. | base pointer |
| C. | bus pointer |
| D. | byte pointer |
| Answer» B. base pointer | |
| 120. |
DI stand for: |
| A. | destination index |
| B. | defect index |
| C. | definition index |
| D. | delete index |
| Answer» A. destination index | |
| 121. |
SI stand for: |
| A. | stand index |
| B. | source index |
| C. | segment index |
| D. | simple index |
| Answer» B. source index | |
| 122. |
ALE stand for: |
| A. | address latch enable |
| B. | address light enable |
| C. | address lower enable |
| D. | address last enable |
| Answer» A. address latch enable | |
| 123. |
NMI stand for: |
| A. | non mask able interrupt |
| B. | non mistake interrupt |
| C. | both |
| D. | none of these |
| Answer» A. non mask able interrupt | |
| 124. |
The offset of a particular segment varies from _________: |
| A. | 000h to fffh |
| B. | 0000h to ffffh |
| C. | 00h to ffh |
| D. | 00000h to fffffh |
| Answer» B. 0000h to ffffh | |
| 125. |
Which are the factor of cache memory: |
| A. | architecture of the microprocessor |
| B. | properties of the programs being executed |
| C. | size organization of the cache |
| D. | all of these |
| Answer» D. all of these | |
| 126. |
________ is usually the first level of memory access by the microprocessor: |
| A. | cache memory |
| B. | data memory |
| C. | main memory |
| D. | all of these |
| Answer» A. cache memory | |
| 127. |
Microprocessor reference that are available in the cache are called______: |
| A. | cache hits |
| B. | cache line |
| C. | cache memory |
| D. | all of these |
| Answer» A. cache hits | |
| 128. |
Microprocessor reference that are not available in the cache are called_________: |
| A. | cache hits |
| B. | cache line |
| C. | cache misses |
| D. | cache memory |
| Answer» C. cache misses | |
| 129. |
Which causes the microprocessor to immediately terminate its present activity: |
| A. | reset signal |
| B. | interupt signal |
| C. | both |
| D. | none of these |
| Answer» A. reset signal | |
| 130. |
Which is responsible for all the outside world communication by the microprocessor: |
| A. | biu |
| B. | piu |
| C. | tiu |
| D. | liu |
| Answer» A. biu | |
| 131. |
INTR: it implies the__________ signal: |
| A. | intrrupt request |
| B. | intrrupt right |
| C. | intrrupt rongh |
| D. | intrrupt reset |
| Answer» A. intrrupt request | |
| 132. |
Which of the following are the two main components of the CPU? |
| A. | control unit and registers |
| B. | registers and main memory |
| C. | control unit and alu |
| D. | alu and bus |
| Answer» C. control unit and alu | |
| 133. |
The language that the computer can understand and execute is called |
| A. | machine language |
| B. | application software |
| C. | system program |
| D. | all of the above |
| Answer» A. machine language | |
| 134. |
Which of the following is used as a primary storage device? |
| A. | magnetic drum |
| B. | prom |
| C. | floppy disk |
| D. | all of these |
| Answer» B. prom | |
| 135. |
Which of the following memories needs refresh? |
| A. | sram |
| B. | dram |
| C. | rom |
| D. | all of above |
| Answer» B. dram | |
| 136. |
The memory which is programmed at the time it is manufactured |
| A. | prom |
| B. | ram |
| C. | prom |
| D. | eprom |
| Answer» A. prom | |
| 137. |
Which of the following memory medium is not used as main memory system? |
| A. | magnetic core |
| B. | semiconductor |
| C. | magnetic tape |
| D. | both a and b |
| Answer» C. magnetic tape | |
| 138. |
Registers, which are partially visible to users and used to hold conditional, are known as |
| A. | pc |
| B. | memory address registers |
| C. | general purpose register |
| D. | flags |
| Answer» C. general purpose register | |
| 139. |
One of the main feature that distinguish microprocessors from micro-computers is |
| A. | words are usually larger in microprocessors |
| B. | words are shorter in microprocessors |
| C. | microprocessor does not contain i/o devices |
| D. | exactly the same as the machine cycle time |
| Answer» C. microprocessor does not contain i/o devices | |
| 140. |
The first microprocessor built by the Intel Corporation was called |
| A. | 8008 |
| B. | 8080 |
| C. | 4004 |
| D. | 8800 |
| Answer» C. 4004 | |
| 141. |
Most important advantage of an IC is its |
| A. | easy replacement in case of circuit failure |
| B. | extremely high reliability |
| C. | reduced cost |
| D. | low powers consumption |
| Answer» B. extremely high reliability | |
| 142. |
Which of the following items are examples of storage devices? |
| A. | floppy / hard disks |
| B. | cd-roms |
| C. | tape devices |
| D. | all of the above |
| Answer» D. all of the above | |
| 143. |
Which is the type of memory for information that does not change on your computer? |
| A. | ram |
| B. | rom |
| C. | eram |
| D. | rw / ram |
| Answer» B. rom | |
| 144. |
Before a disk can be used to store data. It must be……. |
| A. | formatted |
| B. | reformatted |
| C. | addressed |
| D. | none of the above |
| Answer» A. formatted | |
| 145. |
Which company is the biggest player in the microprocessor industry? |
| A. | motorola |
| B. | ibm |
| C. | intel |
| D. | amd |
| Answer» C. intel | |
| 146. |
A typical personal computer used for business purposes would have… of RAM. |
| A. | 4 kb |
| B. | 16 k |
| C. | 64 k |
| D. | 256 k |
| Answer» D. 256 k | |
| 147. |
The word length of a computer is measured in |
| A. | bytes |
| B. | millimeters |
| C. | meters |
| D. | bits |
| Answer» D. bits | |
| 148. |
Which part of the computer is used for calculating and comparing? |
| A. | disk unit |
| B. | control unit |
| C. | alu |
| D. | modem |
| Answer» C. alu | |
| 149. |
Can you tell what passes into and out from the computer via its ports? |
| A. | data |
| B. | bytes |
| C. | graphics |
| D. | pictures |
| Answer» A. data | |
| 150. |
What is the responsibility of the logical unit in the CPU of a computer? |
| A. | to produce result |
| B. | to compare numbers |
| C. | to control flow of information |
| D. | to do math’s works |
| Answer» B. to compare numbers | |
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