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Questions and Answers
Which type of storage is typically used for databases?
Which type of storage is typically used for databases?
- Secondary storage (correct)
- Cache memory
- Primary storage
- Tertiary storage
What is the main purpose of physical database file structures?
What is the main purpose of physical database file structures?
- To store databases in primary storage
- To improve the performance of cache memory
- To organize data in tertiary storage
- To provide access to databases in secondary storage (correct)
Which storage device is considered a form of mass storage?
Which storage device is considered a form of mass storage?
- Magnetic disks (correct)
- Cache memory
- DRAM
- Flash memory
What is the main characteristic of flash memory?
What is the main characteristic of flash memory?
Which storage device has the highest transfer speed?
Which storage device has the highest transfer speed?
True or false: Databases are typically stored on magnetic disks?
True or false: Databases are typically stored on magnetic disks?
True or false: Cache memory is a form of primary storage?
True or false: Cache memory is a form of primary storage?
True or false: Magnetic disks are a type of mass storage device?
True or false: Magnetic disks are a type of mass storage device?
True or false: Flash memory is a type of nonvolatile storage?
True or false: Flash memory is a type of nonvolatile storage?
True or false: CD-ROM, DVD, and tape drives are examples of magnetic disks?
True or false: CD-ROM, DVD, and tape drives are examples of magnetic disks?
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Study Notes
Storage Hierarchy
- Databases are typically stored on magnetic disks
- Storage hierarchy consists of:
- Primary storage: CPU main memory and cache memory
- Secondary storage: magnetic disks, flash memory, and solid-state drives
- Tertiary storage: removable media
Memory Hierarchies and Storage Devices
- Cache memory uses static RAM
- DRAM (Dynamic Random Access Memory) is used for main memory
- Mass storage devices include:
- Magnetic disks
- CD-ROM, DVD, and tape drives
- Flash memory, which is nonvolatile
Storage Types and Characteristics
- Storage types can be characterized by:
- Capacity
- Access time
- Max bandwidth (transfer speed)
- Commodity cost
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