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Exam N10-009 topic 1 question 78 discussion

Actual exam question from CompTIA's N10-009
Question #: 78
Topic #: 1
[All N10-009 Questions]

A customer lost the connection to the telephone system. The administration console is configured with multiple network interfaces and is connected to multiple switches. The network administrator troubleshoots and verifies the following:
The support team is able to connect remotely to the administration console.
Rebooting the switch shows solid link and activity lights even on unused ports.
Rebooting the telephone system does not bring the system back online.
The console is able to connect directly to individual modules successfully.
Which of the following is the most likely reason the customer lost the connection?

  • A. A switch failed.
  • B. The console software needs to be reinstalled.
  • C. The cables to the modules need to be replaced.
  • D. A module failed.
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Suggested Answer: A 🗳️

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ec_
1 week, 2 days ago
Selected Answer: A
A module failed. But the console can connect directly to individual modules, which implies they're working. So D is unlikely. So the most likely answer is A. The switch failed. Even though they rebooted it, maybe the reboot didn't resolve the hardware issue, or there's a configuration problem. The solid lights on unused ports might indicate a malfunctioning switch. Since the telephone system didn't come back after reboot, and direct connections work, the problem is likely the switch handling the telephone system's traffic. The support team can access the admin console via another interface connected to a different switch, so that's why they can still connect remotely.
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085d557
3 weeks, 5 days ago
Selected Answer: D
I would still go with D. It's an astute observation. While solid link and activity lights on unused ports might seem unusual and could be interpreted as a potential switch failure, the fact that the support team can still connect remotely to the administration console suggests that the switch is likely still functioning correctly to some extent. The presence of activity lights on unused ports could indicate a misconfiguration or another network issue, but given the symptoms described, a module failure within the telephone system still seems more plausible. The console's ability to connect directly to individual modules but not to bring the entire system online points towards an internal issue within the telephone system, potentially with one of the modules.
upvoted 2 times
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93831b0
1 month, 1 week ago
Selected Answer: A
When a network switch shows solid link and activity lights on all ports, including unused ones, after rebooting, it typically indicates that the switch is experiencing a broadcast storm or network loop. This screams switch failing !!!
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Big_Wes
1 month ago
True, however "Rebooting the telephone system does not restore service" meaning it is an issue with the module if the switch is back online. D. Failed Module
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blasgmz99
1 month, 2 weeks ago
Selected Answer: A
Direct connection to modules work, Link lights up on a port with no cable connection are indicative of a failing switch.
upvoted 2 times
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HeatSquad77
2 months, 2 weeks ago
Selected Answer: D
The most likely reason the customer lost the connection is D. A module failed.
upvoted 1 times
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