RCDD-002 · Question #41
The transfer of unwanted signals may occur over one path or several paths. What method addresses the mitigation or suppression of unwanted signals?
The correct answer is B. Bonding and grounding. Bonding and grounding (B) directly addresses the mitigation and suppression of unwanted signals - commonly called electromagnetic interference (EMI) or noise - by creating a low-impedance path that diverts stray currents safely to earth, preventing them from coupling into…
Question
The transfer of unwanted signals may occur over one path or several paths. What method addresses the mitigation or suppression of unwanted signals?
Options
- AMounting heights in racks and cabinets
- BBonding and grounding
- CSignal coupling
- DThe use of unshielded cables
How the community answered
(29 responses)- A7% (2)
- B83% (24)
- C3% (1)
- D7% (2)
Explanation
Bonding and grounding (B) directly addresses the mitigation and suppression of unwanted signals - commonly called electromagnetic interference (EMI) or noise - by creating a low-impedance path that diverts stray currents safely to earth, preventing them from coupling into sensitive circuits or equipment.
Why the distractors are wrong:
- A (Mounting heights): Rack/cabinet placement addresses physical organization and airflow, not signal interference suppression.
- C (Signal coupling): Coupling is actually the mechanism by which unwanted signals transfer between paths - it describes the problem, not the solution.
- D (Unshielded cables): Unshielded cables make interference worse by offering no protection against radiated or conducted noise; shielded cables are the correct choice when cabling is the concern.
Memory tip: Think "Bond and Ground = Block the Sound." Bonding ties equipment together at the same potential, and grounding drains interference away - together they're the foundation of any EMI mitigation strategy in electronics, networking, and electrical installations.
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