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Olympiad (Class 6) Memory and Storage — practice questions

Explore 43 free Memory and Storage questions in Olympiad (Class 6) Computer Science. Open each question or exercise to read its content, reference answers and available explanation.

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Memory and Storage questions and exercises with answers

Showing questions 1–30 of 43.

Which storage sits inside the processor and is the fastest of all?Read the answer and worked solution →A small quick store sits between the processor's registers and main memory. What is it called?Read the answer and worked solution →Which of these is another name for main memory?Read the answer and worked solution →A power cut hits a PC. Which of these still holds its data afterwards?Read the answer and worked solution →A big archive uses a robotic arm to load tapes on demand for rarely used data. Which storage level is this?Read the answer and worked solution →What mainly separates offline storage from tertiary storage?Read the answer and worked solution →When RAM fills up, an operating system moves least-used pages to a swap file. Where is that file kept?Read the answer and worked solution →What does virtual memory let a system do?Read the answer and worked solution →Which pair is usually used as secondary storage in modern computers?Read the answer and worked solution →Why may a low-capacity SSD use less power than a hard disk?Read the answer and worked solution →In which kind of access can any storage location be reached in about the same time?Read the answer and worked solution →Which disc is read-only and used for mass distribution of music, video and programs?Read the answer and worked solution →How does an optical disc drive read data from the disc surface?Read the answer and worked solution →A hard disk stores bits asRead the answer and worked solution →Rewriting does not physically wear magnetic storage. What mostly limits a hard disk's lifespan?Read the answer and worked solution →Flash memory keeps its data without power. How can its data be changed?Read the answer and worked solution →Which type of flash is mainly found in USB drives, memory cards and SSDs?Read the answer and worked solution →Which flash type allows direct random access, so it suits running program code in place?Read the answer and worked solution →A child drops a phone. Why is its flash storage less likely to break than a spinning hard drive?Read the answer and worked solution →What is a key disadvantage of flash memory?Read the answer and worked solution →A flash drive spreads writes over many blocks so that no block wears out early. This technique is calledRead the answer and worked solution →Erasing a block of flash memory sets its bits to what value?Read the answer and worked solution →A memory gives every word location a 3-bit binary address. How many words can it hold at most?Read the answer and worked solution →A tiny chip numbers its word locations with 4-bit binary addresses. What is the most words it can hold?Read the answer and worked solution →A designer gives each location of a memory a 10-bit address. How many locations can be named?Read the answer and worked solution →Most semiconductor memory cells each store how much?Read the answer and worked solution →Which memory needs regular refresh cycles to avoid losing its contents?Read the answer and worked solution →Which kind of RAM is mainly used for CPU cache?Read the answer and worked solution →Which type forms the main memory of most desktop computers?Read the answer and worked solution →A UPS gives a computer a brief window of time toRead the answer and worked solution →

Worked practice questions

Which storage sits inside the processor and is the fastest of all?

  1. Main memory chip
  2. Hard disk drive
  3. Processor register
  4. Optical disc drive
Show answer and solution

Correct answer: C. Processor register

Registers are built into the processor itself, so they are quicker to reach than any other kind of storage.

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A small quick store sits between the processor's registers and main memory. What is it called?

  1. Swap file
  2. Processor cache
  3. Magnetic tape
  4. Floppy disk
Show answer and solution

Correct answer: B. Processor cache

Cache is the middle step: faster than main memory but much smaller in capacity.

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Which of these is another name for main memory?

  1. Offline storage
  2. Auxiliary storage
  3. Primary storage
  4. External memory
Show answer and solution

Correct answer: C. Primary storage

Main memory is also called primary memory or primary storage, while auxiliary and external memory mean secondary storage.

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