Memory and Storage MCQs

Question 1

Which of the following RAM timing parameters determine its operating speed?

Accepted Answer

tRC and tWC

Answer

tACC

Answer

tAA and tACS

Answer

tCO and tOD

Question 2

The reason the data outputs of most ROM ICs are tristate outputs is to:

Accepted Answer

permit the connection of many ROM chips to a common data bus.

Answer

allow for three separate data input lines.

Answer

allow the bidirectional flow of data between the bus lines and the ROM registers.

Answer

isolate the registers from the data bus during read operations.

Question 3

Select the statement that best describes Read-Only Memory (ROM).

Accepted Answer

nonvolatile, used to store information that does not change during system operation

Answer

nonvolatile, used to store information that changes during system operation

Answer

volatile, used to store information that changes during system operation

Answer

volatile, used to store information that does not change during system operation

Question 4

How many 2K × 8 ROM chips would be required to build a 16K × 8 memory system?

Accepted Answer

8

Answer

2

Answer

4

Answer

16

Question 5

What is the maximum time required before a dynamic RAM must be refreshed?

Accepted Answer

2 ms

Answer

4 ms

Answer

8 ms

Answer

10 ms

Question 6

Which of the following best describes random-access memory (RAM)?

Accepted Answer

a type of memory in which access time is the same for each memory location

Answer

a type of memory in which access time depends on memory location

Answer

a type of memory that can be written to only once but can be read from an infinite number of times

Answer

mass memory

Question 7

Which is not a removable drive?

Accepted Answer

Hard

Answer

Zip

Answer

Jaz

Answer

SuperDisk

Question 8

Which of the following best describes EPROMs?

Accepted Answer

EPROMs can be erased by UV.

Answer

EPROMs can be programmed only once.

Answer

EPROMs can be erased by shorting all inputs to the ground.

Answer

All of the above.

Question 9

How many storage locations are available when a memory device has 12 address lines?

Accepted Answer

4096

Answer

144

Answer

512

Answer

2048