300-320 · Question #606
Management has chosen to implement a top-of-the-rack data center design. Which two benefits of moving to this mode? (Choose two.)
The correct answer is A. easier per rack upgrades B. decreased cabling costs. In a Top-of-Rack design, a switch is placed at the top of each rack and servers connect to it with short patch cables (typically 1–2 meters). This yields two key benefits: (A) easier per-rack upgrades, since each rack is a self-contained unit with its own switch that can be…
Question
Management has chosen to implement a top-of-the-rack data center design. Which two benefits of moving to this mode? (Choose two.)
Options
- Aeasier per rack upgrades
- Bdecreased cabling costs
- Cdirectly connected racks in the row
- Dfewer ports required in the aggregation
- Efewer switches to manage
How the community answered
(29 responses)- A90% (26)
- D3% (1)
- E7% (2)
Explanation
In a Top-of-Rack design, a switch is placed at the top of each rack and servers connect to it with short patch cables (typically 1–2 meters). This yields two key benefits: (A) easier per-rack upgrades, since each rack is a self-contained unit with its own switch that can be upgraded or replaced independently; and (B) decreased cabling costs, because short intra-rack cables replace the long structured cabling runs required by End-of-Row (EoR) designs that route all cables to a central row switch. ToR does not reduce the number of ports in the aggregation layer (D) - it actually requires more uplinks. It also does not reduce the number of switches to manage (E); it increases them compared to EoR.
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