10 J277 1.2 Common Types of storage

What is the main advantage of DVD-RW over CD-RW?

• Greater storage capacity

• Lower cost

• Higher portability

• Better durability

What is the primary method by which optical drives read data from the media?

• Using a magnetic field

• Using a laser

• Using an electric current

• Using a mechanical arm

What are the physical features created on the surface of read-only optical discs by the laser?

• Pits and lands

• Grooves and ridges

• Dots and dashes

• Lines and spaces

What is a key characteristic of read-only optical media?

• It can be rewritten many times

• It cannot be changed once burned

• It is highly susceptible to magnetic fields

• It is more expensive than writeable media

What is a disadvantage of optical media mentioned in the text?

• High cost

• Low portability

• Prone to scratches

• Susceptible to magnetic fields

What is a characteristic of magnetic storage?

• It has no moving parts.

• It is very slow to access data.

• It uses a drive head that physically moves over the surface of the disk.

• It is lightweight and highly portable.

Which type of storage is known for being lightweight and highly portable?

• Magnetic storage

• Solid-state storage

• Optical storage

• Cloud storage

What is a disadvantage of solid-state storage?

• It has moving parts that can fail.

• It is very slow to access data.

• It has a limited number of read-write cycles.

• It requires defragmentation.

Which type of storage was traditionally used for backups due to its large capacity and portability?

• Optical storage

• Magnetic tapes

• Solid-state storage

• Cloud storage

What causes the limited lifespan of solid-state drives?

• The drive head physically moving over the disk.

• The deterioration of oxide layers over time.

• The need for defragmentation.

• The use of magnetic compounds.