ITPEC FE Morning October 2018 Question 13
ITPEC FE Morning October 2018 — Question 13 of 80
USB 3.0 SuperSpeed — identify the correct description of USB 3.0.
USB 3.0 is a serial interface with a transfer mode called SuperSpeed at 5 Gbps.
- •USB 2.0 = High-Speed at
480 Mbps - •USB 3.0 = SuperSpeed at
5 Gbps(~10× faster)
Why not others:
- (b) Isochronous + broadcast — describes IEEE 1394 (FireWire), used for audio/video streaming
- (c) 2 bits per cycle, 4 pairs, 1 Gbps — describes 1000BASE-T (Gigabit Ethernet)
- (d) Serial ATA for peripherals — describes SATA, used for connecting storage devices to a PC
Key rule: USB 3.0 = SuperSpeed = 5 Gbps serial interface.
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