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Worksheets1.3 Storage
Total questions: 10
Worksheet time: 5mins
Which of these are reasons for computer systems requiring secondary storage? (Tick all)
Secondary storage improves system performance
Used to back up data stored in main memory/primary storage.
Stores programs/data and other files that would otherwise be lost when the power is switched off/RAM is volatile/cannot store data permanently.
Need for larger storage capacity (than what RAM and ROM can provide).
Its required for Virtual Networks
Which of these define what secondary storage is?
Non-volatile storage / devices that are not directly accessible by the CPU
Any non-volatile storage
All memory technologies that use magnetism.
Any memory technology using laser light
A USB device
Which of these storage devices make use of magnetism to store data? (Tick All)
SSD
HDD
LTO Tape
FDD
DVD
Which of these storage devices make use of optics (laser light) to store data? (Tick All)
CD
Fibre Optic Cable
DVD
Blue-Ray
LED
Which of these storage devices make use of logic circuits (NOR or NAND gates ) to store data? (Tick All)
SSD
USB
USB Disk
SD Memory Card
Cloud Storage
A File OVERHEAD is additional space needed to store a file on a disk - this is MORE than the data alone by how much?
5%`
10%
15%
20%
25%
A 24-bit colour image file with dimensions 100 x 100 pixels would require _____ bytes of disk space.
10,000
11,000
240,000
33,000
264,000
Which of these statements are True? (Tick all)
SSD disks do not fragment
Fragmentation on HDD can reduce system performance
SSDs have a faster transfer speed for large files compared to a HDD
A SSD would always be the best choice over a HDD
Defragmenting an SSD extends the life-span of the drive
Besides COST or CAPACITY, which of these are characteristics of storage devices? (Select all)
speed (data transfer rate)
Durability
Portability
Reliability
Data Storage Space
Which of these statements explain "durability"?
Length of time expected for data to last.
Whether the data will be saved as expected.
The data is not affected when saved.
No changes to the file formatting.
