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Which of the following statements are true about a Solid State Drive (SSD)? i. SSDs use mechanical spinning platters to read and write data. ii. SSDs provide faster access times compared to traditional Hard Disk Drives. iii. SSDs are more resistant to physical shock than HDDs. iv. The full form of SSD is Super Storage Device.
i and iv
ii and iii
i and ii
iii and iv
ii and iii
A Solid State Drive (SSD) is a high-speed storage device that uses NAND-based flash memory instead of the mechanical spinning platters found in traditional Hard Disk Drives (HDDs). Because SSDs have no moving parts, they exhibit significantly lower latency and higher resilience to physical impact.
JESD218 (Solid State Drive (SSD) Requirements and Endurance Test Method)
A Solid State Drive (SSD) is a high-speed storage device that uses NAND-based flash memory instead of the mechanical spinning platters found in traditional Hard Disk Drives (HDDs). Because SSDs have no moving parts, they exhibit significantly lower latency and higher resilience to physical impact.
LatencyHDDтАЛ=Seek┬аTime+Rotational┬аLatency
Access┬аTimeSSDтАЛтЙкAccess┬аTimeHDDтАЛ
SSDs function by storing data in memory cells, typically using Floating Gate Transistors or Charge Trap Flash technology. When data is accessed, a controller identifies the address within the non-volatile NAND grid, allowing near-instantaneous retrieval compared to the seek time required for an HDD read-write head to physically move over a rotating platter.
SSDs use semiconductor memory, making them silent and energy-efficient.
Non-volatile memory ensures data retention even when power is disconnected.
The acronym SSD stands for Solid State Drive, not Super Storage Device.
Data read speeds in SSDs are limited by the interface (e.g., SATA III, NVMe/PCIe) rather than mechanical physics.
Faster boot times and application loading
High physical shock resistance
Silent operation
Lower power consumption
Higher cost per gigabyte compared to HDDs
Finite write cycles (Wear Leveling required)
Data recovery can be more complex than mechanical drives
Operating system drives in laptops/desktops
High-performance database servers
Embedded systems requiring rugged storage
| Feature | SSD | HDD |
|---|---|---|
Storage Medium | Flash Memory (NAND) | Magnetic Platter |
Moving Parts | None | Yes |
Statement i is false because SSDs have no mechanical platters.
Statement iv is false because SSD stands for Solid State Drive.
Modern NVMe SSDs utilize the PCIe bus to provide massive bandwidth, significantly outperforming SATA-based SSDs.
B is correct тАФ Statements ii and iii correctly describe the superior performance and durability of SSDs due to the absence of mechanical components.
In competitive exams, remember that SSDs are preferred in mobile environments (laptops/tablets) precisely because they are shock-resistant due to the lack of moving read/write heads.