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06 - Practice Test

 1. Adding more RAM to a system will only help if the RAM that is currently installed is always filled to 100% and more space is needed.

  TRUE

  FALSE

 2. A hard disk drive is quieter, more portable and has a quicker access time than a flash memory device.

  FALSE

  TRUE

 3. Although CPUs fetch instructions from RAM, there is another place they can get instructions from, called _______.

  'common ground'

  'cache'

  'cartesian fluid'

  'computer source'

 4. Cache is like RAM but the one difference is that it is much ___________ to read and write from it as compared to RAM. This obviously speeds up CPU performance.

  slower

  slower

  craftier

  faster

 5. Describe how the CPU and RAM work together to make a tablet computer work and execute instructions/programs?

  Instructions currently running are stored in the CPU - these are fetched by the RAM which executes them

  Instructions currently running are stored in the ROM (Hard drive) - these are then executed by the RAM and CPU together

  Instructions currently running are stored in RAM - these are fetched by the CPU which then executes them

  Instructions are stored in the RAM and CPU and the ALU fetches them from the RAM to execute them.

 6. Both DRAM (Dynamic Random Access Memory) and SRAM (Static Random Access Memory) are types of RAM.
sr1.jpg

  TRUE

  FALSE

 7. DRAM has a simpler construction compared to SRAM.

  TRUE

  FALSE

 8. DRAM is more expensive than SRAM.
sr4.jpg

  TRUE

  FALSE

 9. DRAM is used as the main memory, whereas on-chip caches are usually SRAMs.

  TRUE

  FALSE

 10. Dynamic RAM is faster than Static RAM
sr2.png

  TRUE

  FALSE

 11. Flash memory gets its name from the fact that a whole block of data can be erased in a flash.

  FALSE

  TRUE

 12. Flash memory devices are cheaper and usually have a far higher capacity than traditional hard drives.
fm4.jpg

  TRUE

  FALSE

 13. Flash memory is a type of permanent storage that is very convenient if you need to backup files or as a type of portable storage.

  TRUE

  FALSE

 14. Most computer systems require secondary storage (this is different from Main Memory and RAM) in order to store files (like the operating system) even when the system is 'off'. This is referred to as ____________.

  powerful

  non volatile

  computational

  volatile

 15. Flash memory is said to be solid state storage device because, unlike disk and CD drives, there are no moving parts.

  TRUE

  FALSE

 16. Read/Write speed of a hard disk drive is faster than RAM.
vm2.jpg

  FALSE

  TRUE

 17. Flash memory is used in which of the following devices?

  Floppy disks

  CPU

  Virtual memory

  Memory cards

 18. The memory unit consists of RAM, sometimes referred to as primary or MAIN MEMORY. The key thing to remember is that: (which statement is correct?)

  Main memory is located in the ALU and can only communicate with the cache

  Main memory is a form of memory that cannot be directly accessed by the CPU

  Main memory is any sort of memory that the CPU can access- such as RAM, cache or registers

  Main memory is any sort of memory that the CPU can access- such as RAM, cache or registers

 19. Flash memory will lose the stored data if it is not connected to a power source.

  TRUE

  FALSE

 20. RAM cannot be removed from the PC.

  FALSE

  TRUE

 21. Virtual memory is a section of volatile memory created temporarily on the storage (e.g. hard drive) drive. It tends to be created when ....

  a computer wants to go undercover and adopt a 'virtual' identity

  a computer is unexpectedly free and RAM is abundant

  a computer is under attack from a virus

  a computer is running many processes at once and RAM is running low.

 22. RAM stands for:

  Random Access Machine

  Random Access Memory

  Real Audio Media

  Rapid Access Memory

 23. What is virtual memory?

  Long-term memory

  Process for encoding information

  Long-term memory

  A memory management technique that creates the illusion of a very large (main) memory

 24. Secondary storage is almost always (1)______________________ while Main Memory (like RAM) tends to be (2)____________________

  (1) Non Volatile (2) Volatile

  (1) Non Volatile (2) Non Volatile

  (1) Volatile (2) Non Volatile

  (1) Volatile (2) Volatile

 25. When several programs run at the same time, the RAM can be full. Instead of closing programs, the operating system uses virtual memory to store some data.

  True

  False

 26. Some programs need a certain amount of RAM to run properly and companies will usually put this information on the box so you know before you buy.

  FALSE

  TRUE

 27. Where is data stored when it is in virtual memory?
vm1.png

  RAM

  A secondary storage device e.g. hard disk drive

  An optical drive e.g. CD

  RAM

 28. The memory unit consists of RAM, sometimes referred to as primary or main memory. Unlike a hard drive (secondary memory), this memory is fast and also directly accessible by the CPU.

  False

  True

 29. The use of virtual memory slows a computer because data must be mapped between virtual and physical memory, which requires extra hardware support for address translations.

  FALSE

  TRUE

 30. Virtual memory frees applications from managing shared memory and saves users from adding more memory modules when RAM space runs out.
vm3.jpg

  TRUE

  FALSE

 31. What are the two gates in the NAND flash drive?

  Power gate, Control gate

  Spinning gate, Control gate

  Control gate, Floating gate

  Floating gate, Spinning gate

 32. What is stored in RAM?
rr2.png

  Save files for your games

  The BIOS

  Data and instructions for use by the CPU

  The operating system

 33. Where does NAND flash memory derive its name from?

  The way the memory cells are organized

  The way board is designed

  None of the mentioned

  The way the USB connector is connected to the chip

 34. When using RAM - the data is saved when the electricity is switched off

  TRUE

  FALSE

 35. An example of flash memory is an SD card

  TRUE

  FALSE

 36. An internal hard disk uses magnetic technology

  TRUE

  FALSE

 37. Virtual memory 'lives' in the hard disk

  TRUE

  FALSE

 38. RAM is an example of secondary storage

  FALSE

  TRUE

 39. RAM is also an example of flash memory

  FALSE

  TRUE

 40. A computer is continuously 'paging' to the swap file - this is because there is not enough RAM.

  TRUE

  FALSE