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IGCSE - 3.3 - Data storage

Total questions: 80

Worksheet time: 38mins

Name
Class
Date
1.

Solid state storage has no moving parts?

a)

True

b)

False

2.

Which type of storage uses a laser?

a)

Magnetic

b)

Optical

c)

Solid State

3.

Which of the following storage devices is most suitable for use in mobile devices?

a)

Cloud

b)

Magnetic

c)

Solid State

d)

Optical

4.

Which of the following is most commonly found in PCs?

a)

Solid State Storage

b)

Magnetic Storage

c)

Cloud Storage

d)

Optical Storage

5.

What is a storage device?

a)

A device use for calculating data

b)

A device used to store data temporarily

c)

A device used to supply power to the computer

d)

A device used to store data permanently

6.

A CD has one long track on it full of ...

a)

Grooves and pot holes

b)

Pits and Lands

c)

Bumps and Dots

d)

Dots and Grooves

7.
Optical device, fairly fragile, easy to snap or scratch.
a)
Flash memory
b)
Magnetic Tape
c)
CD
d)
Hard disk
8.
Not intended to be a portable storage device.
a)
CD
b)
Flash memory
c)
DVD
d)
Internal hard disk
9.
Large organisations use this type of storage device to  back up their systems daily.
a)
CD
b)
DVD
c)
Blu-ray
d)
Magnetic tape
10.
Typically has the largest storage capacity and is the cheapest per gb.
a)
Magnetic storage
b)
Solid state storage
c)
Optical storage
11.

Typically stores 650mb of data on it - usually music/ sound files.

a)

DVD

b)

Blu-ray

c)

CD

d)

Floppy disk

12.
What is the most durable?
a)
Magnetic Tape
b)
Solid State Drive
c)
Hard Drive
d)
CD
13.
A ______ is the main storage device in your computer.
a)
CPU
b)
Hard drive
c)
Motherboard
d)
CD-Rom
14.
Very portable as it is designed to be fitted into small electronic devices.
a)
Flash memory devices
b)
Internal hard disk
c)
Magnetic tape
d)
Server
15.

Which of the following is an advantage of Solid State Storage?

a)

It has spinning disks to read the data

b)

The storage device is lightweight and silent

c)

SSDs are very cheap to buy and have lots of storage

16.

How many types of RAM are?

a)

17

b)

2

c)

4

d)

3

17.

SRAM stands for ______________________ .

a)

System Read Access Memory

b)

Serial Random Acess Memory

c)

Static Random Access Memory

d)

Static Read Only Memory

18.

DRAM stands for?

a)

Dedicated Random Access Memory

b)

Dynamic Random Access Memory

c)

Device Runtime Access Management

d)

Dual Random Access Memory

19.

Which secondary storage is the fastest?

a)

SSD (Solid State Drive)

b)

HDD (Hard Disk Drive)

c)

USB Flash Drive

d)

DVD-ROM

20.

Besides COST or CAPACITY, which of these are characteristics of storage devices? (Select all)

a)

speed (data transfer rate)

b)

Durability

c)

Portability

d)

Reliability

e)

Data Storage Space

21.
Why does blu-ray have more storage than other optical disks?
a)
Because it uses blue lasers which have shorter wavelengths.
b)
to make the copy of original data to in case you lose your original data.
c)
it is a disk with bumps can be read by laser
d)
allowed you to store a lot of data, very fast transfer data
22.
What is the disadvantage of using magnetic storage devices?
a)

They can be easily affected by magnetic fields.

b)

They have small capacity.

c)

They are expensive

d)

They can be easily damaged

23.
Why you cannot store your own data with CD-ROM or DVD-ROM?
a)

because they are read only

b)

too expensive

c)

small storage capacity

d)

it requires special hardware that is hard to buy.

24.

Identify components that are not the part of CPU that are used in the fetch stage of the cycle.

a)

Solid State Drive // SSD

b)

Random Access Memory // RAM

c)

Program Counter // PC

d)

Current Instruction Register // CIR

25.

Three types of storage media are magnetic, optical and solid state. One example of solid‑state storage is a Solid State Drive (SSD). Identify other examples of solid‑state storage.

a)

SD Card

b)

Floppy Disks

c)

USB Flash memory Drive

d)

DVD Drive

26.

Optical storage uses a _______ to store and read data from a disk.

a)

Arm / Head

b)

Camera

c)

Laser

d)

Sensor

27.

To read/write data on optical storages: An _____________ moves the laser across the surface of the disk

a)

Motor

b)

Rotors

c)

Wheel

d)

Arm / Head

28.

In optical storages: The laser burns ________ onto the surface of the disk

a)

Pits

b)

Scratches

c)

Tracks

d)

Lands

29.

In optical storages: The reflected light from the laser shining on the disk is captured by?

a)

Magnet

b)

Camera

c)

Sensor

d)

Tape

30.

Why an SSD is the most suitable secondary storage for their mobile

device?

a)

High capacity

b)

Fast access with read and write speed

c)

Waterproof

d)

It has low power consumption

31.

Many devices have a Media Access Control (MAC) address. Choose features of a MAC address.

a)

It is a unique address

b)

It can be used to identify a device

c)

It is the security protocol when accessing online

d)

It is assigned by the manufacturer

32.

CD, DVD and Blu-ray are types of optical storage media. Tick (✓) the most appropriate optical storage medium for each statement.

Stores lower-quality audio files

a)

CD

b)

DVD

c)

Blue-Ray

33.

CD, DVD and Blu-ray are types of optical storage media. Tick (✓) the most appropriate optical storage medium for each statement.

Has the highest storage capacity

a)

CD

b)

DVD

c)

Blu-Ray

34.

CD, DVD and Blu-ray are types of optical storage media. Tick (✓) the most appropriate optical storage medium for each statement.

Stores high-definition movies?

a)

CD

b)

DVD

c)

Blu-Ray

35.

Tick (✓) whether the following are optical, magnetic or solid-state storage media.....

SSD

a)

Solid state

b)

Optical

c)

Magnetic

36.

Tick (✓) whether the following are optical, magnetic or solid-state storage media.....

Blu-ray

a)

Solid state

b)

Optical

c)

Magnetic

37.

Tick (✓) whether the following are optical, magnetic or solid-state storage media.....

Pen drive

a)

Solid state

b)

Optical

c)

Magnetic

38.

Tick (✓) whether the following are optical, magnetic or solid-state storage media.....

Portable hard disk drive

a)

Solid state

b)

Optical

c)

Magnetic

39.

Solid-state drives are rated at 20 GB write operations per day over a three year period is called?.........

a)

Two Year Period

b)

Three Year Period

c)

SSD Endurance

40.

Solid-state devices that plug into a computer USB port are known as.........

a)

Memory Sticks

b)

Flash Memory

c)

SSD Drives

41.

Both DVDs and Blu-ray discs can make use of dual-layering technology

a)

True

b)

False

42.

CD-RW can act as the same as a ROM chip

a)

True

b)

False

43.

Cloud storage makes use of Blu-ray disks to store customers’ music and photo files

a)

True

b)

False

44.

HDDs suffer from latency due to the time taken for a specific block of data on a data track to rotate around to the read/write head

a)

True

b)

False

45.

The areas on a DVD where 1s and 0s are stored are called pits and lands

a)

True

b)

False

46.

Which of these has a secure encryption system built in

a)

DVD

b)

Blu-Ray

47.

Describe the changes in technology which have led to the disappearance of the hard disk drive (HDD) as the main backing store on a computer.

a)

Use of No moving part

b)

Use of Cloud storage

c)

introduction of micro computers

48.

.............. needs to be constantly refreshed to retain data

a)

SRAM

b)

DRAM

c)

Cache

d)

ROM

49.

....... stores BIOS instructions

a)

RAM

b)

SRAM

c)

ROM

d)

DRAM

50.

...... stores the OS currently in use

a)

Cache

b)

RAM

c)

ROM

d)

Virtual Memory

51.

In HDD data is stored in....

a)

pits and lands

b)

blocks and groups

c)

sectors and tracks

d)

memory and flip flops

52.

... makes use of flip flops

a)

SRAM

b)

DRAM

c)

ROM

d)

RAM

53.

which device has the slowest access to data

a)

RAM

b)

Cache

c)

Hard Disk

d)

Magnetic Tape

54.

which device has the slowest access to data

a)

RAM

b)

ROM

c)

Cache

d)

Virtual Memory

55.

.... does not have any moving parts and data is retrieved at the same rate

a)

HDD

b)

SSD

c)

Optical

d)

Offline

56.

SSD stores data by controlling the movement of electrons within .... chips

a)

NOR

b)

NAND

c)

XOR

d)

AND

57.

Two applications of NAND flash memory technology are

a)

HDD

b)

SSD

c)

USB Drive

d)

Firmware Storage

58.

SSD is not used in servers because...

a)

takes time to get up to speed

b)

lesser longetivity

c)

heats up after some time

d)

high power consumption

59.

Which one of the following is not an Optical storage

a)

CD-R

b)

DVD-RAM

c)

USB

d)

Blu Ray

60.

Data on a HDD disk is organised in ...

a)

Spiral tracks

b)

Concentric tracks

61.

..... uses 405 nanometres of wavelength to store data

a)

DVD-RAM

b)

Blu Ray

c)

CD

d)

DVD

62.

..... can use dual layering to store more data

a)

CD

b)

DVD

c)

Blu Ray

d)

CD-RW

63.

Data on an optical disk is organised in ...

a)

Spiral tracks

b)

Concentric tracks

64.

... makes use of capacitors

a)

SRAM

b)

DRAM

c)

ROM

d)

RAM

65.
Why you cannot store your own data with CD-ROM or DVD-ROM?
a)

they are read only

b)

too expensive

c)

small storage capacity

d)

they require special hardware that are hard to buy.

66.
Virtual memory is
a)
a memory management technique
b)
a virus checking utility
c)
a piece of hardware
d)
an series of pixels used to represent an image
67.
Virtual memory is used
a)
when the RAM is not enough to contain all of the programs and data currently being used
b)
every other time a program is used
c)
as a secondary storage medium for long term storage of documents
d)
when the CPU is getting overheated
68.
Virtual memory typically uses two storage devices, RAM and ______________.
a)
the hard drive
b)
ROM
c)
a secondary piece of RAM
d)
a CD-ROM
69.
A program stored in virtual memory may run slower than a program stored on the RAM
a)
TRUE
b)
FALSE
70.
The computer can take programs out of the RAM and store them in virtual memory, this frees up the RAM to be used to open more programs.
a)
TRUE
b)
FALSE
71.

Hard drives have faster access times than RAM

a)

TRUE

b)

FALSE

72.

The more programs you have open, the less RAM and virtual memory will be needed.

a)

TRUE

b)

FALSE

73.
Virtual memory makes use of secondary storage as if it were main memory.
a)
TRUE
b)
FALSE
74.

Why is Virtual Memory needed or used by a computer?

a)

When RAM becomes full because of too many programs running at once

b)

When ROM is too small and struggles to store the Operating System

c)

When users wish to store data on an external server such as 'the cloud'

d)

When chosen by the user or computer administrator

75.

Which of these is an advantage of cloud storage?

a)

The user has no control over their data

b)

Many programs can be run at the same time, regardless of the processing power of your device

c)

Accessible anywhere with an internet connection

d)

Portability

76.

What is cloud computing?

a)

Storing files on the Internet

b)

Running programs on a remote server

c)

Running an operating system

d)

All of the above

77.

What is a disadvantage of cloud computing?

a)

It is vulnerable to hacking

b)

The storage can be easily expanded

c)

Portability

d)

All of the above

78.

What is a possible risk of cloud computing?

a)

Lack of Access to Data

b)

Full control over the data

c)

Storage of data without control over the location of where the data is stored

d)

Lack of the ability to back up data

79.

Which of these is an advantage of cloud storage?

a)

The user has no control over their data

b)

Many programs can be run at the same time, regardless of the processing power of your device

c)

Accessible anywhere with an internet connection

d)

Portability

80.

Cloud Computing provides cost savings through reduced facility, hardware/software investments, support.

a)

True

b)

False

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