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Exam SK0-005 topic 1 question 3 discussion

Actual exam question from CompTIA's SK0-005
Question #: 3
Topic #: 1
[All SK0-005 Questions]

After configuring IP networking on a newly commissioned server, a server administrator installs a straight-through network cable from the patch panel to the switch. The administrator then returns to the server to test network connectivity using the ping command. The partial output of the ping and ipconfig commands are displayed below:

The administrator returns to the switch and notices an amber link light on the port where the server is connected. Which of the following is the MOST likely reason for the lack of network connectivity?

  • A. Network port security
  • B. An improper VLAN configuration
  • C. A misconfigured DHCP server
  • D. A misconfigured NIC on the server
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by Dion79 at Feb. 17, 2022, 6:35 p.m.

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lightthetorch
2 weeks, 5 days ago
Selected Answer: B
Decided to shoot this one over to chatgpt, this is what it says in summary. Both, B. Improper VLAN configuration and D. Misconfigured NIC are plausible answers depending on the assumptions: If we assume modern hardware, VLAN misconfiguration is more likely. If we assume older or manually configured hardware, NIC misconfiguration (e.g., cable type, duplex mismatch) becomes more likely. If the question is from CompTIA Server+, which often assumes modern enterprise environments, B. Improper VLAN configuration is still the best answer—but D is a strong contender and worth remembering for real-world troubleshooting.
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PaytoPlay
2 months ago
Selected Answer: B
B is the answer here, layer 1 and 2 are good but its not routing. This in conjunction with the amber light indicates VLAN issue.
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fluke92
7 months, 1 week ago
Selected Answer: D
Given the amber link light observed on the switch port, this strongly supports the conclusion that B. An improper VLAN configuration is the most likely cause. The VLAN mismatch would prevent the server's traffic from being routed correctly within the network, leading to the ping failures.
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Ronn_Burgandy
9 months ago
Selected Answer: D
The amber light on the switch could mean A or D and they are both totally viable, both would also return request timed out. Of course this is a typical CompTIA what is the most correct answer. I think they are eluding to that the NIC may not have auto-mdi/mdi-x enabled because the questions mentions a straight through cable rather than a crossover cable. Even though most modern servers and switches have this enabled by default. There also isn’t anything to suggest that port security would be tripped like another device having been plugged into port prior.
upvoted 1 times
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Sweety_Certified7
1 year, 4 months ago
Selected Answer: D
Answer is D for sure. Check the third question on this website that has correct and verified answers (I have been using it since long): https://quizlet.com/866168501/sk0-005-server-dump-part-1-flash-cards/
upvoted 2 times
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Obi_Wan_Jacoby
2 years, 5 months ago
Selected Answer: D
I believe with options A, B and C you would get "Destination host unreachable" due to the fact there would be no way for the client/server to reach whatever they are pinging. But with D you could get request timed out due to a number of things. https://www.quora.com/What-is-the-difference-between-request-timed-out-and-destination-host-unreachable-in-terms-of-device-presence-using-ping
upvoted 2 times
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Pongsathorn
2 years, 7 months ago
Selected Answer: D
Some devices, such as network switches, use colors to indicate performance information rather than status information. For example, a network switch may display a green LED on a port if the connection is operating at 1 Gbps but an amber LED if the port is operating at 100 Mbps. Check the device's documentation to interpret the colors correctly. The Official CompTIA Server+ Study Guide (Exam SK0-005) page 102.
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dcdc1000
2 years, 9 months ago
Hi, I'm going with A. WRT the questions, there is no reason to believe answer D i.e. the NIC is misconfigured due, the question indicates it has an IP address, DG, and appropriate NIC. Now then, if you connect the server's ethernet cable to the port and the switchport has port-security enabled, you will absolutely get a solid amber light and the result is Request timed out.
upvoted 2 times
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PEsty93
3 years, 2 months ago
Selected Answer: D
Amber light indicates slow speed. Straight through cable is different and only has half the pairs. The issue would be because the NIC is not running the correct Duplex. The Duplex needs to be the same at both ends.
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dnc1981
3 years, 3 months ago
If the led is solid amber, then the answer is port security. A is the correct answer.
upvoted 3 times
Dion79
3 years, 2 months ago
You don't think it could be D? Why? I'm not saying it can't be Network port security, could be STP issue. Why not D first then A? https://www.omnisecu.com/cisco-certified-network-associate-ccna/spanning-tree-port-states.php https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/hardware/installation/guide/b_c2960x_hig/b_c2960x_hig_chapter_01.html https://community.cisco.com/t5/switching/switch-port-colour-codes/td-p/1239919
upvoted 1 times
dnc1981
3 years, 2 months ago
If it was STP that would not be a misconfigured NIC. STP is configured on the switch, not on the NIC. Also based on the info in the question, there is no reference to the NIC being configured. And the IP address, Subnet mask, and default gateway all look like they're all in the same subnet. So the IP config isn't misconfigured
upvoted 2 times
Dion79
3 years, 2 months ago
Reason why I will stick with D. Yes... Network Port security STP is a feature that's what I was saying, not on the NIC. 1. Normally port would not show any lights if port was disabled using network port security. 2. ping reply would be host unreachable. Misconfigured NIC - 1. Ping can reply with request timed out. 2. link light can be amber/Green. 3. New Server setups - mistakes are make and re-evaluate static NIC settings (Default Gateway address is incorrect?). A response from a ping command that results in a message stating "Request timed out" occurs when there is an active network link but with no destination host to reach that can reply, since the host may be in another VLAN. Reference: CompTIA CertMaster Practice Server+ SK0-005
upvoted 1 times
i_bird
2 years, 10 months ago
@Dion79, Even your third info link suggests the answer is A. When a Port LED is Amber the Port is not forwarding. This is possibly due to 1: The port being disabled by management, 2: an address violation, or Spanning Tree Protocol (STP). After the port is reconfigured, the port LED can remain amber for up to 30 seconds while STP checks the switch for possible loops. https://networkengineering.stackexchange.com/questions/14905/why-only-one-amber-light-between-two-switches
upvoted 2 times
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