A technician is troubleshooting reports that a networked printer is unavailable. The printer's IP address is configured with a DHCP reservation, but the address cannot be pinged from the print server in the same subnet. Which of the following is MOST likely the cause of the connectivity failure?
The most likely cause of the connectivity failure is an incorrect VLAN configuration. If the printer is on a different VLAN than the print server, they would not be able to communicate with each other even if they are in the same subnet and have valid IP configurations. VLANs can segment network traffic and isolate devices at the data link layer, preventing devices on different VLANs from communicating directly despite being on the same IP subnet.
If it’s reserved how can DHCP scope exhaustion affect it? I think it might be on the wrong VLAN
A technician is troubleshooting reports that a networked printer is unavailable. The printer's IP address is configured with a DHCP reservation, but the address cannot be pinged from the print server in the same subnet. Which of the following is MOST likely the cause of the connectivity failure? A. Incorrect VLAN - If its on different VLAN, therefore, you are not able to pinged the printer B. DNS failure - The printer is not connecting to via URL C. DHCP scope exhaustion - The printer is configured with a DHCP reservation D. Incorrect gateway - question stated that the printer server is in the same subnet
Thanks for the insight 👍
Bing AI pick (D): "Based on the information provided, the most likely cause of the connectivity failure is (D) Incorrect gateway. A DHCP reservation ensures that a device is assigned a specific IP address every time it connects to the network. However, if the gateway address is incorrect, the device will not be able to communicate with other devices on the network, even if it has a valid IP address. In this case, since the printer’s IP address cannot be pinged from the print server in the same subnet, it is likely that the printer is not able to communicate with other devices on the network due to an incorrect gateway address. It is important to note that: (A) VLANs are used to segregate network traffic and are unlikely to cause connectivity issues in this scenario. (B) DNS failures can cause name resolution issues but are not likely to affect IP connectivity. (C) DHCP scope exhaustion occurs when there are no more available IP addresses in a DHCP pool, but this is not relevant since a DHCP reservation has been configured for the printer."
The most likely cause of the connectivity failure in this scenario is an incorrect gateway. If the printer's IP address is within the same subnet as the print server, and it has a DHCP reservation, then it should be reachable from the print server. If it cannot be pinged, it is likely that the traffic is not being routed correctly, and the gateway may be misconfigured. DNS failure, VLAN issues, and DHCP scope exhaustion would not prevent the printer from being reachable from the print server within the same subnet. I knew it this is a gateway issue
i also agree with you.
It is clear here that only the VLAN segmentation that can prevent devices on the same subnet to communication one another if there is an IP reservation. The scenario would state it if DHCP had to assign the IP reserved to another device. Therefore, A is correct. Please, do not add what is not stated!
There are two kinds of "reservations", those based on lease (temporary), and those based on administratively configured rules (permanent). For lease-based reservations, the server will stop responding to new DHCP requests when its pool of addresses is exhausted, but will free up space as soon as a lease expires. https://superuser.com/questions/1250270/can-mac-spoofing-make-dhcp-run-out-of-ip-addresses#:~:text=there%20are%20two%20kinds%20of,soon%20as%20a%20lease%20expires. You would have to be configuring the address in an entirely different department than the print server if the issue was the VLAN.
Well, according to GPT, the DHCP server could assign the reserved IP for the printer to some other device if the printer was not online when the DHCP Scope was exhausted.
Yes, it's possible for a DHCP server to assign a reserved IP address to another device if the reserved device is not currently connected to the network. When a DHCP server runs out of available IP addresses in its pool due to DHCP exhaustion, it might reuse an IP address that was previously allocated but is not currently in use. This process is known as address reallocation or address reuse.
DHCP scope exhaustion occurs when all of the available IP addresses in the DHCP scope have been assigned. This would prevent the printer from obtaining an IP address, but it would not prevent the printer from being pinged if it already had an IP address.
D. Incorrect gateway The most likely cause of the connectivity failure in this scenario is an incorrect gateway configuration. If the printer is configured with a DHCP reservation, it means it should have a specific IP address assigned to it. However, if the gateway (default gateway) is misconfigured or incorrect, the device will not be able to communicate outside its local subnet. In this case, the print server in the same subnet cannot ping the printer because it doesn't know how to reach it beyond the local subnet. VLAN configuration, DNS issues, and DHCP scope exhaustion might cause different problems, but in this specific case, an incorrect gateway is the most likely culprit for the connectivity failure.
If the printer is in the wrong VLAN, it would have a different IP subnet, and the print server would not be able to communicate with it because they would be on different networks. However, if the printer's IP address is in the same subnet as the print server, then they are in the same VLAN, and the issue is likely related to another network problem such as an incorrect gateway or routing issue.
What would you need gateway if is in the same subnet ?
MCI you are correct. Gateway only needed for communication with external network ie Internet. The best answer here is A. But the question could do with some more detail
Try changing your gateway let see if you can access internet or your network files or connected printer on the wifi.
That is not correct. Different VLANs make traffic run via a router no matter what IP addresses are involved.
The gateway is responsible for routing traffic between different subnets or networks. In this scenario, if the printer's gateway is configured incorrectly or is unreachable, the print server in the same subnet won't be able to communicate with the printer, even if they have IP addresses in the same subnet.
There are two kinds of "reservations", those based on lease (temporary), and those based on administratively configured rules (permanent). For lease-based reservations, the server will stop responding to new DHCP requests when its pool of addresses is exhausted, but will free up space as soon as a lease expires. https://superuser.com/questions/1250270/can-mac-spoofing-make-dhcp-run-out-of-ip-addresses#:~:text=there%20are%20two%20kinds%20of,soon%20as%20a%20lease%20expires.
D - Incorrect gateway "the address cannot be pinged from the print server in the same subnet". I would tend to go for incorrect gateway here. Other sites also saying D too.
vlan means printer
If the printer's IP address is configured with a DHCP reservation, how is the DHCP scope exhausted?? This one has been bugging me. . . .Reservations don't expire. How is C the right answer???
This question is so weird answers could be a or d depends on additional troubleshooting and analyzing on the actual issue.
It cannot be DHCP exhaustion, it cannot be the default gateway. DHCP reserved and not default gateway because it is in same subnet and in the same subnet it will use MAC address to communicate (not the gateway). Not DNS most probably because I hope they are using the ip address to ping (but who knows). Incorrect VLAN means it is in a different broadcast domain. Another of those bad questions. But I will select incorrect VLAN
I am here to shed some light, chatGPT response: Based on the information given, the most likely cause of the connectivity failure is option D: Incorrect gateway. Since the printer has a DHCP reservation, it is likely that it has received an IP address from the DHCP server. However, if the gateway address is configured incorrectly on the printer, it may not be able to communicate with other devices on the network. This would explain why the printer's IP address cannot be pinged from the print server in the same subnet. Options A and B are less likely to be the cause of the problem because VLAN and DNS configurations typically do not affect basic connectivity between devices on the same subnet. Option C is also less likely because DHCP scope exhaustion would result in no IP addresses being available for new devices, rather than causing connectivity issues for a single device.
How came you use chat gpt and it gives you wrong answers ? Lol
Chatgpt is not always right and it bullshits based on the info provided. It is only a language model and not an intelligent person. You need to question it and make it see the point and then it will correct the answer.
Given your answer, I would not call what you're doing "shedding some light"... The default gateway is only used if devices are in different subnets. The question states that this is not the case. You should either trust ChatGPT less and study the course material more (this is a basic issue!) - or you should reconsider the question that you asked ChatGPT.