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WorksheetsStorage Devices and Media
Total questions: 85
Worksheet time: 43mins
What does backing up data refer to?
Backing up refers to copying files or data into a different medium in case of damage or loss of original copy.
Backing up refers to deleting unnecessary files from the computer.
Backing up refers to compressing files to save space.
Backing up refers to renaming files for better organization.
Backing up data is important for which of the following reasons?
To prevent data loss and to recover data in case of system failure
To increase the speed of the computer and to reduce storage space
To improve internet connectivity and to enhance graphics quality
To make software updates automatic and to block viruses
Which of the following is NOT a reason for backing up data?
To safeguard against loss of data
To safeguard against damages caused by hackers
To increase the speed of the computer
To protect the original format of files when sending elsewhere
Magnetic backing storage media holds data ________.
magnetically
optically
electrically
chemically
What is the function of the surface area of magnetic backing storage media?
The surface area of the media is magnetised so that it can hold bits of data.
It increases the speed of data transfer.
It prevents the media from overheating.
It provides a protective layer against dust.
The device that reads magnetic backing storage media can also read the bits held on the ________.
surface area
keyboard
monitor
printer
Which of the following is NOT a use of magnetic tape drives?
Used in applications where batch processing is used
Used as a backup media for vast amounts of data
Used in long-term archiving of data
Used for increasing internet speed
Which of the following are advantages of magnetic tape drives?
They are cost-effective and can store large amounts of data.
They provide instant access to any data point.
They are faster than solid-state drives.
They are immune to physical damage.
Magnetic tape drives are generally more expensive than hard disk drives.
True
False
What is one disadvantage of using tapes for data storage?
Prolonged data access times (uses serial access).
Very high cost compared to hard drives.
Cannot store any digital data.
Tapes are only used for video recording.
What is required when updating data on a tape?
Another tape is needed to store the final updated version.
The tape can be updated directly without any additional resources.
A hard disk is required to temporarily store the data.
A USB drive is needed to back up the data before updating.
What can corrupt data stored on a tape?
A strong magnetic field.
Excessive sunlight.
Low humidity.
Frequent rewinding.
Which of the following is a use of Fixed Hard Disks/Drives?
To store the OS, systems software and working data/files.
To print documents.
To connect to the internet.
To display graphics.
Name one use of Fixed Hard Disks/Drives.
Storing applications files.
Boiling water for tea.
Writing with a pen on paper.
Cooking food.
Fixed Hard Disks/Drives are used in real-time systems and in online systems.
True
False
Fixed Hard Disks/Drives are used in file servers for computer networks.
True
False
What is one advantage of Fixed Hard Disks/Drives?
They have a very fast data transfer rate and fast access times to data.
They are easily portable and can be carried anywhere.
They do not require any power supply to operate.
They are immune to physical damage and never fail.
Fixed Hard Disks/Drives have a very large memory capacity.
True
False
What is one disadvantage of Fixed Hard Disks/Drives?
It can be fairly easily damaged.
It is immune to physical shocks.
It is portable and lightweight.
It does not require any power supply.
Name a disadvantage of Fixed Hard Disks/Drives related to their moving parts.
They have many moving parts which affect overall reliability.
They are immune to physical shocks due to moving parts.
Moving parts make them faster than SSDs.
Moving parts increase their energy efficiency.
What is one use of Portable Hard Disk Drives?
Can be used as a backup system to prevent data loss.
Can be used to increase internet speed.
Can be used to print documents wirelessly.
Can be used to charge mobile phones directly.
Portable Hard Disk Drives can be used to transfer data/files/software between computers.
True
False
What is one advantage of data storage devices mentioned in the passage?
They are very slow
They have a very large memory capacity
They are always fixed in computers
They cannot transfer information between computers
Data access time and data transfer rate are very _____
fast
slow
uncertain
erratic
Which of the following is a disadvantage of data storage devices?
They are indestructible
They can be easily damaged if not properly shut down
They always have the fastest data transfer rate
They are always cheaper than fixed hard disk drives
The data transfer rate of data storage devices is always faster than fixed hard disk drives.
True
False
How does optical media hold data?
By using magnets
By burning 'dots' onto the surface with a high-powered laser
By freezing the surface
By using electricity
The data that reads the media can read the data by shining a ______-powered laser over the dots.
lower
high
medium
ultra
What is one use of CD-R/DVD-R?
Only for professional data centers
Home recordings of music and films
Only for temporary data storage
For playing video games only
Which of the following is an advantage of CD-R/DVD-R?
They can be recorded multiple times
They are cheaper than RW disks
They are more expensive than RW disks
They cannot be finalized
CD-R/DVD-R can only be recorded once; if an error occurs, the disk has to be thrown away.
True
False
Not all CD/DVD players can read _______.
CD-R/DVD-R
CD-ROM/DVD-ROM
Blu-ray Discs
Floppy Disks
What is one use of CD-RW/DVD-RW?
Used to record television programs which can be recorded over, time and time again.
Used to store films permanently.
Used only for music files.
Used for internet browsing.
Which of the following is an advantage of CD-RW/DVD-RW?
It can be written over many times.
It is the cheapest media available.
It cannot be overwritten.
It is only used for music files.
One disadvantage of CD-RW/DVD-RW is that it can be ________ media.
relatively expensive
easily portable
highly durable
very lightweight
CD-RW/DVD-RW can be used as a backup device for files and data.
True
False
Which of the following is a disadvantage of CD-RW/DVD-RW?
Possible to accidentally overwrite data.
Cannot be used for backup.
Only used for music files.
Cannot be written over.
What does CD-ROM/DVD-ROM stand for?
Read and Write
Read Only Memory
Random Access Memory
Digital Video Memory
CD-ROM is used to store ________ files and to store software, computer games and reference software.
music
video
text
image
Which of the following is an advantage of CD-ROM/DVD-ROM?
They are less expensive than hard disk drive systems.
They can be written over many times.
They are used only for CCTV systems.
They are the most expensive media.
DVD-ROM has much larger storage and is used to store films.
True
False
CD-ROM/DVD-ROM are used in applications where there is a real need to prevent ________ or overwriting of important data.
deletion
copying
sharing
compression
Which type of laser does a Blu-ray disc use?
Red laser
Blue laser
Green laser
Yellow laser
What is the main advantage of the smaller wavelength of the blue laser in Blu-ray discs compared to DVDs?
Stores less data
Stores five times more data
Slower data transfer
No difference
Blu-ray discs automatically come with a secure encryption system.
True
False
The data transfer rate for a Blu-ray disc is ______ Mbps.
36
12
54
24
Name one use of Blu-ray discs.
Home video consoles / Storing and playing back movies / Data storage for computers / Storing movies in camcorders
Cooking food
Writing with a pen
Watering plants
Repairing shoes
Which of the following is NOT an advantage of Blu-ray discs?
Very large storage capacity
Very fast data transfer rate
Lower data access speed than other optical media
Secure encryption system
What is one disadvantage of Blu-ray discs?
They are inexpensive
They have encryption problems when used to store videos
They are faster than SSDs
They have unlimited storage
Solid-state drives (SSD) are used as a ________ to store files, applications, OSs, and so on.
storage device
display device
input device
network device
Which of the following is an advantage of SSDs?
They have moving parts
They are heavier than HDDs
They are more reliable as they have no moving parts
They consume more power than HDDs
SSDs are suitable for laptops because they are considerably lighter.
True
False
SSD data access time is only ______ milliseconds compared to 10 milliseconds for HDD.
0.1
1
5
8
Which of the following is a disadvantage of SSDs?
They have higher storage capacity than magnetic hard disks
They are less expensive than magnetic hard disks
They are conservatively rated at only 20GB write operations per day over three years
They have moving parts
SSDs run much cooler than HDDs.
True
False
What is one reason SSDs are considered more reliable than HDDs?
They have no moving parts.
They use magnetic disks.
They require regular defragmentation.
They are larger in size.
Which of the following is NOT an advantage of SSDs?
Lower power consumption
Very thin
Slower data transfer speed than HDDs
No moving parts
SSDs are less expensive than magnetic hard disks.
True
False
What is one use of Hard Disk Drives (HDD)? HDDs are used as a ______ device to store files, applications, operating systems, and backups.
storage
display
input
network
Which of the following is an advantage of Hard Disk Drives (HDD)?
More expensive than SSDs
Generally offers larger storage capacities than SSDs
Not suitable for long-term storage
Unreliable for read/write operations
HDDs are more ______ compared to SSDs, making them a cost-effective option.
affordable
fragile
expensive
unreliable
HDDs are well-suited for long-term storage needs.
True
False
Which of the following is NOT an advantage of HDDs?
Reliable for non-intensive read/write operations
Well-suited for long-term storage
Higher power consumption
More affordable compared to SSDs
HDDs have ______ parts, making them more prone to damage.
moving
static
liquid
wireless
Which of the following is a disadvantage of HDDs?
Lighter than SSDs
Heavier and bulkier compared to SSDs
Lower power consumption
Faster data transfer than SSDs
HDDs have ______ power consumption compared to SSDs.
higher
lower
equal
variable
HDDs have slower data transfer and access speeds compared to SSDs.
True
False
Which of the following is a disadvantage of HDDs?
Generates less heat and noise
Generates more heat and noise
Not affected by magnetic fields
Very compact and portable
What is one use of Pen drives (Memory sticks)? Pen drives are used for ______ files between computers or as a backing store.
transporting
deleting
printing
editing
Pen drives can be used as a security device to prevent software piracy (known as a dongle).
True
False
Which of the following is an advantage of Pen drives?
Very compact and portable media
Needs additional software to work
Affected by magnetic fields
Bulky and heavy
Pen drives do not need additional ______ to work on most computers.
software
hardware
drivers
batteries
Which of the following is a disadvantage of Pen drives?
Cannot protect the data/files by making it 'read-only'
Very robust
Not affected by magnetic fields
Very compact and portable
Which of the following is NOT a type of flash memory card listed in the passage?
SD card
XD card
CFast card
HDD card
SD cards are widely used in ______ devices.
portable
stationary
liquid
immobile
Which type of memory card is mainly found in older digital cameras?
SD card
XD card
CFast card
MicroSD card
CFast cards are designed for high-speed data transfer in ______.
professional cameras
mobile phones
laptops
printers
Which of the following is NOT listed as a use of flash memory cards?
Storing photos on digital cameras
Used as mobile phone memory cards
Used in MP3 players to store music files
Used as a processor in computers
Which of the following is an advantage of flash memory cards?
Very compact
Expensive per gigabyte
Lower storage capacity than hard disks
Easy to lose
Flash memory cards have no moving parts, making them very durable.
True
False
Flash memory cards are more ______ per gigabyte of memory when compared to HDDs.
expensive
affordable
common
efficient
Which of the following is a disadvantage of flash memory cards?
They can hold large amounts of data
They are very durable
They have a lower storage capacity than hard disks
They are widely used in portable devices
Memory cards have a finite life regarding the number of times they can be _______ from or written to.
read
painted
heated
folded
Memory cards, specifically the micro SD card, are the _______ sized devices available, making them more likely to be lost, stolen or damaged.
smallest
largest
heaviest
slowest
Users must often purchase a card reader or _______ converter to view the data.
USB
HDMI
VGA
Ethernet
