Quizz

What could be the cause of soft error in your computer memory?

• A.     You spilled coffee on your computer.

• B.     Computer is too old.

• C.     Some cosmic rays.

• D.You mad at video games then smashed your computer.

     What could be the cause of hard failure in your computer memory?

• A.     Somebody left a chunk of plutonium 239 next to your computer.

• B.     Blackout. (no electricity)

• C.     You threw your computer into outer space.

• D.     Somebody left a chunk of uranium-238 next to your computer.

Calculate the parity bits of the following data bits: 1001001  

• 1111

• 11001001

• 1000

• 1101

Which is faster, SRAM or DRAM?

• SRAM

• DRAM

One distinguishing characteristic of memory that is designated as _________ is that it is possible to both to read data from the memory and to write new data into the memory easily and rapidly.

• RAM

• ROM

• EPROM

• EEPROM

DRAM lưu trữ thông tin ở đâu?

•  capacitors

• flip-flop

• transitors

• adress lines

__________ increases the data transfer rate by increasing the operational frequency of the RAM chip and by increasing the prefetch buffer from 2 bits to 4 bits per chip.

• DDR2

• RDRAM

• CDRAM

• DDR3

_______ can send data to the processor twice per clock cycle.

• CDRAM

• SDRAM

• DDR-DRAM

• RDRAM

________ increases the prefetch buffer size to 8 bits.

• DDR

• DDR 2

• DDR 3

• RDRAM

The sent parity bits are “101”, but the received parity bits are “110”. Find the location of the flipped bit

• 7

• 6

• 8

• 9