Memory and Storage MCQs

Question 1

Typically, how often is DRAM refreshed?

Accepted Answer

4 to 16 ms

Answer

2 to 8 ms

Answer

8 to 16 s

Answer

1 to 2 s

Question 2

Which type of ROM can be erased by an electrical signal?

Accepted Answer

EEPROM

Answer

ROM

Answer

mask ROM

Answer

EPROM

Question 3

Suppose that a certain semiconductor memory chip has a capacity of 8K × 8. How many bytes could be stored in this device?

Accepted Answer

8,192

Answer

8,000

Answer

64,000

Answer

65,536

Question 4

Data is written to and read from the disk via a magnetic ________ head mechanism in the floppy drive.

Accepted Answer

read/write

Answer

cylinder

Answer

recordable

Answer

cluster

Question 5

A 64-Mbyte SIMM is installed into a system, but when a memory test is executed, the SIMM is detected as a 32-Mbyte device. What is a possible cause?

Accepted Answer

The address decoder on the SIMM is faulty.

Answer

The memory module was not installed properly.

Answer

The voltage on the memory module is incorrect.

Answer

The most significant address line is stuck high or low.

Question 6

How many address lines would be required for a 2K × 4 memory chip?

Accepted Answer

11

Answer

8

Answer

10

Answer

12

Question 7

When a RAM module passes the checkerboard test it is:

Accepted Answer

probably good.

Answer

able to read and write only 1s.

Answer

faulty.

Answer

able to read and write only 0s.

Question 8

Which type of ROM has to be custom built by the factory?

Accepted Answer

mask ROM

Answer

ROM

Answer

EPROM

Answer

EEPROM

Question 9

What is the computer main memory?

Accepted Answer

RAM and ROM

Answer

Hard drive and RAM

Answer

CD-ROM and hard drive

Answer

CMOS and hard drive