MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is a sense amplifier? |
| A. | It is an amplifier which converts ac current into dc current |
| B. | It is an amplifier which lowers the input voltage |
| C. | It is an amplifier which increases the input voltage |
| D. | It is an amplifier which converts the low voltage to a sufficient voltage |
| Answer» E. | |
| 2. |
An address multiplexing in DRAM is of _____ bits. |
| A. | 10240 |
| B. | 15289 |
| C. | 16384 |
| D. | 17654 |
| Answer» D. 17654 | |
| 3. |
Why do a DRAM employ the address multiplexing technique? |
| A. | To reduce the number of memory locations |
| B. | To increase the number of memory locations |
| C. | To reduce the number of address lines |
| D. | To increase the number of address lines |
| Answer» D. To increase the number of address lines | |
| 4. |
Which characteristic of RAM memory makes it not suitable for permanent storage? |
| A. | Unreliable |
| B. | Too slow |
| C. | Too bulky |
| D. | It is volatile |
| Answer» E. | |
| 5. |
Cache memory acts between __________ |
| A. | RAM and ROM |
| B. | CPU and RAM |
| C. | CPU and Hard Disk |
| D. | CPU and ROM |
| Answer» C. CPU and Hard Disk | |
| 6. |
Dynamic RAM is used as main memory in a computer system as __________ |
| A. | It has a lower cell density |
| B. | It needs refreshing circuitry |
| C. | Consumes less power |
| D. | Has higher speed |
| Answer» E. | |
| 7. |
Virtual memory consists of __________ |
| A. | SRAM |
| B. | DRAM |
| C. | Magnetic memory |
| D. | Main Memory |
| Answer» B. DRAM | |
| 8. |
The main memory of a PC is made of __________ |
| A. | Cache |
| B. | Dynamic RAM |
| C. | Static RAM |
| D. | Both cache and dynamic RAM |
| Answer» E. | |
| 9. |
The dynamic RAM offers __________ |
| A. | High power consumption, large storage capacity |
| B. | Reduced power consumption, large storage capacity |
| C. | Reduced power consumption, short storage capacity |
| D. | High power consumption, short storage capacity |
| Answer» C. Reduced power consumption, short storage capacity | |
| 10. |
What is the disadvantage of MOS capacitor in DRAM? |
| A. | It can t hold the data till a long period |
| B. | It doesn t holds the charge till a long period |
| C. | It is highly densed |
| D. | It is not flexible |
| Answer» C. It is highly densed | |
| 11. |
DRAM uses of integrated MOS capacitors as _______ instead of a flip-flop. |
| A. | Storage cell |
| B. | Memory cell |
| C. | Dynamic cell |
| D. | Static cell |
| Answer» C. Dynamic cell | |
| 12. |
Most modern operating systems employ a method of extending RAM capacity, known as __________ |
| A. | Magnetic memory |
| B. | Virtual memory |
| C. | Storage memory |
| D. | Static memory |
| Answer» C. Storage memory | |
| 13. |
The DRAM stores its binary information on __________ |
| A. | MOSFET |
| B. | Transistor |
| C. | Capacitor |
| D. | BJT |
| Answer» D. BJT | |
| 14. |
The memory size of DRAM is ____________ |
| A. | 1 to 100 MB |
| B. | 512 to 1024 MB |
| C. | 64 to 512 MB |
| D. | 16 to 256 MB |
| Answer» E. | |
| 15. |
Dynamic RAM is more preferable than static RAM, why? |
| A. | DRAM is of the lowest cost, lowest density |
| B. | DRAM is of the highest cost, reduced size |
| C. | DRAM is of the lowest cost, highest density |
| D. | DRAM is more flexible and lowest storage capacity |
| Answer» D. DRAM is more flexible and lowest storage capacity | |