ITPEC FE Morning April 2021 Question 14
ITPEC FE Morning April 2021 — Question 14 of 80
USB 3.0 (SuperSpeed) — identify the correct description of the USB 3.0 interface.
USB 3.0 is a serial interface with a SuperSpeed data transmission mode at 5 Gbit/s.
Why not others:
- (a) — describes IEEE 1394 (FireWire): isochronous transmission for audio/video with broadcast mode
- (c) — describes Serial ATA (SATA): a serialized ATA specification for connecting storage/peripheral devices
- (d) — describes an interface using 4 signal line pairs transmitting 2 bits per clock at 1 Gbit/s — resembles IEEE 1394b or similar parallel-style interfaces
Key fact: USB 3.0 = SuperSpeed = 5 Gbit/s.
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