COMPUTER AWARENESS - MEMORY MCQS SET 67

COMPUTER AWARENESS - MEMORY MCQS SET 67

1. Data is written to and read from the disk via a magnetic ________ head mechanism in the floppy drive.
A.cylinder        B.read/write        C.recordable        D.cluster
Answer: Option B

2. What does the term "random access" mean in terms of memory?
A.Addresses must be accessed in a specific order.
B.Any address can be accessed in any order.
Answer: Option B

3. 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?
A.The memory module was not installed properly.
B.The voltage on the memory module is incorrect.
C.The most significant address line is stuck high or low.
D.The address decoder on the SIMM is faulty.
Answer: Option D

5. How many address lines would be required for a 2K × 4 memory chip?
A.8        B.10        C.11        D.12
Answer: Option C

6. When a RAM module passes the checkerboard test it is:
A.able to read and write only 1s.    B.faulty.    C.probably good.   
D.able to read and write only 0s.
Answer: Option C

7. Which type of ROM has to be custom built by the factory?
A.ROM            B.mask ROM            C.EPROM        D.EEPROM
Answer: Option B

8. What is the computer main memory?
A.Hard drive and RAM        B.CD-ROM and hard drive        C.RAM and ROM
D.CMOS and hard drive
Answer: Option C

9. A major disadvantage of the mask ROM is that it:
A.is time consuming to change the stored data when system requirements change
B.is very expensive to change the stored data when system requirements change
C.cannot be reprogrammed if stored data needs to be changed
D.has an extremely short life expectancy and requires frequent replacement
Answer: Option C

10. The periodic recharging of DRAM memory cells is called ________.
A.multiplexing        B.bootstrapping        C.refreshing        D.flashing
Answer: Option C