CompTIA
220-702 · Question #147
Which of the following is the BEST tool to troubleshoot a DB-9 port?
The correct answer is D. Loopback plug. See the full explanation below for the reasoning.
Question
Which of the following is the BEST tool to troubleshoot a DB-9 port?
Options
- AOhm meter
- BAnti-static wrist strap
- COscilloscope
- DLoopback plug
How the community answered
(41 responses)- A7% (3)
- B17% (7)
- C5% (2)
- D71% (29)
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