SSCP · Question #789
Which of the following was designed as a more fault-tolerant topology than Ethernet, and very resilient when properly implemented?
The correct answer is C. Token Ring. Token Ring is a LAN technology developed by IBM in which all devices are connected in a logical ring topology and a special signal called a 'token' is passed around the ring to control which device may transmit at any given time. Token Ring was specifically engineered with…
Question
Which of the following was designed as a more fault-tolerant topology than Ethernet, and very resilient when properly implemented?
Options
- AToken Link.
- BToken system.
- CToken Ring.
- DDuplicate ring.
How the community answered
(27 responses)- A4% (1)
- B4% (1)
- C93% (25)
Explanation
Token Ring is a LAN technology developed by IBM in which all devices are connected in a logical ring topology and a special signal called a 'token' is passed around the ring to control which device may transmit at any given time. Token Ring was specifically engineered with fault tolerance in mind: it typically uses a dual-ring architecture (primary and secondary rings) so that if a cable segment or device fails, traffic can be rerouted around the fault using the secondary ring. This made it significantly more resilient than the shared-bus Ethernet of its era (10BASE-2/10BASE-5), which had no such built-in redundancy. Token Ring operated at 4 Mbps or 16 Mbps and used the IEEE 802.5 standard.
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