Q.1
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
Q.2
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
Q.3
The DRAM stores its binary information on __________
  • a) MOSFET
  • b) Transistor
  • c) Capacitor
  • d) BJT
Q.4
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
Q.5
DRAM uses of integrated MOS capacitors as _______ instead of a flip-flop.
  • a) Storage cell
  • b) Memory cell
  • c) Dynamic cell
  • d) Static cell
Q.6
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
Q.7
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
Q.8
The main memory of a PC is made of __________
  • a) Cache
  • b) Dynamic RAM
  • c) Static RAM
  • d) Both cache and dynamic RAM
Q.9
Virtual memory consists of __________
  • a) SRAM
  • b) DRAM
  • c) Magnetic memory
  • d) Main Memory
Q.10
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
Q.11
Cache memory acts between __________
  • a) RAM and ROM
  • b) CPU and RAM
  • c) CPU and Hard Disk
  • d) CPU and ROM
Q.12
Which characteristic of RAM memory makes it not suitable for permanent storage?
  • a) Unreliable
  • b) Too slow
  • c) Too bulky
  • d) It is volatile
Q.13
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
Q.14
An address multiplexing in DRAM is of _____ bits.
  • a) 10240
  • b) 15289
  • c) 16384
  • d) 17654
Q.15
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
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