ITPEC FE Morning October 2021 Question 14
Which of the following is a connection method that is referred to as a daisy chain?
Explanation
PC to one display, that display to the next — a daisy chain connects devices in series, each passing the connection on to the next.
In option (c) the PC is cabled to the first 4K display, and that display's second Thunderbolt port is cabled to the second display: PC → display 1 → display 2. The second display reaches the PC only through the first. Interfaces such as Thunderbolt, SCSI and IEEE 1394 support this kind of chaining.
Answer (c)
Why not others:
- •(a) — every device plugs into a USB hub, which connects to the PC; that is a star around the hub, not a chain
- •(b) — two separate point-to-point links from the PC, one RS-232C and one USB; no device is connected through another
- •(d) — cameras and PCs all connect to one central network hub, a star topology
Key rule: A daisy chain links devices in a line, each to the next; a hub links every device to one central point.
Computer Component · AI-written, may contain errors
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