Quiz

Is flash memory always faster than a hard disk?

Yes

No

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Will an SSD eventually get old (wear out) if we continuously read the same file?

Yes

No

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If you increase a counter in a file, does the counter always reside within the same SSD cell?

Yes

No

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Your 1TB SSD can actually (secretly) store more data than 1TB?

Yes

No

We don't know, since SSDs are black boxes and only shown as block devices to the OS

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The Flash Translation Layer (FTL) is log-structured because it ...

... uses a binary tree (of logarithmic height)

... logs (records) write requests

... is inspired by the work of lumberjacks

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