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Apple-Device-Support Exam - Topic 12 Question 26 Discussion

Which of the following IP address suggests there may be a problem with DHCP?
B) 169.254.194.49
A) 172.25.143.2
C) 10.31.209.58
D) 192.168.6.75

Apple-Device-Support Exam - Topic 12 Question 26 Discussion

Actual exam question for Apple's Apple-Device-Support exam
Question #: 26
Topic #: 12
[All Apple-Device-Support Questions]

Which of the following IP address suggests there may be a problem with DHCP?

Show Suggested Answer Hide Answer
Suggested Answer: B

An IP address that starts with 169.254 suggests there may be a problem with DHCP. This is because 169.254 is the prefix for a link-local address, which is an address that is automatically assigned by the device when it cannot obtain an IP address from a DHCP server. A link-local address allows the device to communicate with other devices on the same local network, but not with devices on other networks. A link-local address indicates that either the DHCP server is not available, not configured properly, or not reachable by the device. To resolve this issue, the device should try to renew its IP address from the DHCP server, or the DHCP server should be checked for any errors or misconfigurations. The other IP addresses are valid addresses that can be assigned by a DHCP server, and do not indicate any problem with DHCP.Reference:DHCP Error: What It Is and How to Fix It - Lifewire,7.4.4 Module Quiz - DHCPv4 (Answers) - ITExamAnswers


by Carole at Sep 14, 2024, 06:08 PM

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Annelle
8 months ago
C and D are fine, but B is definitely a red flag.
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Mariann
8 months ago
B is the classic sign of a DHCP failure.
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Alonso
9 months ago
Wait, are we sure? I thought 169.254 was normal in some cases.
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Sherman
9 months ago
Agreed, B is the one that screams DHCP issue.
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Hana
9 months ago
Definitely B, that's a link-local address.
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Buddy
9 months ago
I thought all the options were private IPs, but I guess the 169.254 one stands out as a potential problem. Just not 100% confident on the details.
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Kimberlie
9 months ago
I practiced a similar question, and I remember that 169.254 addresses are definitely a sign of DHCP issues. So I’m leaning towards B.
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Lavonne
10 months ago
I'm not entirely sure, but I feel like 172.25.x.x could also be a private address. I need to double-check what the APIPA range is.
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Tanesha
10 months ago
I think the answer might be B, the 169.254.x.x address. I remember that indicates an APIPA address when DHCP fails.
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Ruthann
10 months ago
I'm a bit confused on this question. I know DHCP is used to automatically assign IP addresses, but I'm not sure which of these would specifically suggest a DHCP problem. I'll have to guess and hope for the best.
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Arlie
10 months ago
Ah, I remember learning about this in class. The 169.254.x.x range is used for link-local addresses when a device can't obtain a DHCP-assigned address, so that's the one I'll choose.
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Bettina
10 months ago
I'm not too sure about this one. The IP addresses all look valid, but I'm not familiar with the specific ranges that might indicate a DHCP issue. I'll have to think this through carefully.
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Casey
10 months ago
Hmm, I think the 169.254.x.x address range is used for Automatic Private IP Addressing (APIPA) when DHCP fails, so I'll go with option B.
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Margarita
10 months ago
RAID 1+0 and RAID 6 both sound like reasonable options for the database volumes. I'll need to compare the pros and cons of each.
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Jose
2 years ago
Gotta go with B, that 169 network is the IT equivalent of the 'check engine' light.
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Carisa
2 years ago
I always keep an eye out for that 169 address, it's a sign something's not right.
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Pete
2 years ago
Yeah, that 169 network always raises a flag for me too.
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Vannessa
2 years ago
I agree, B) 169.254.194.49 is definitely a red flag for DHCP issues.
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Sherly
2 years ago
D) 192.168.6.75
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Lisha
2 years ago
C) 10.31.209.58
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Craig
2 years ago
A) 172.25.143.2
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Ciara
2 years ago
B) 169.254.194.49
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Noemi
2 years ago
I'm not sure, but I think A) 172.25.143.2 could also suggest a problem with DHCP if it's not within the expected range.
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Bette
2 years ago
I agree with Orville. APIPA addresses are assigned when a device cannot obtain an IP address from a DHCP server.
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Jaime
2 years ago
Haha, the 169.254 address? Looks like someone forgot to pay the DHCP bill!
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Gerald
2 years ago
Looks like someone's going to have to troubleshoot the DHCP server.
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Britt
2 years ago
I've seen that before, it's a sign that DHCP isn't working properly.
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Marvel
2 years ago
Definitely, that address means there's an issue with DHCP.
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Kristeen
2 years ago
Yeah, that 169.254 address is a dead giveaway.
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Jolanda
2 years ago
B is the clear winner here, that 169.254 prefix is the ultimate DHCP fail.
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Stefan
2 years ago
Yep, 169.254 definitely screams DHCP problem.
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Lizbeth
2 years ago
I agree, B is the odd one out and indicates a DHCP issue.
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Mirta
2 years ago
Definitely B, that 169.254 prefix is a dead giveaway.
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Chu
2 years ago
D) 192.168.6.75
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Dona
2 years ago
C) 10.31.209.58
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Xochitl
2 years ago
B) 169.254.194.49
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Naomi
2 years ago
A) 172.25.143.2
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Orville
2 years ago
I think B) 169.254.194.49 suggests a problem with DHCP because it falls within the APIPA range.
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Lizbeth
2 years ago
Whoa, that 169.254.x.x address is a classic sign of trouble! DHCP ain't doing its job.
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Reita
2 years ago
I always check for that 169.254.x.x address when troubleshooting DHCP.
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Rima
2 years ago
D) 192.168.6.75
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Graciela
2 years ago
Yeah, that address means DHCP is having issues.
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Domonique
2 years ago
B) 169.254.194.49
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Glen
2 years ago
B) 169.254.194.49 - Definitely a DHCP issue there, that's the old 'Automatic Private IP Addressing' range.
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Francoise
2 years ago
D) 192.168.6.75 - No issues with that IP.
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Erinn
2 years ago
B) 169.254.194.49 - Yeah, that IP suggests a DHCP problem.
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Kayleigh
2 years ago
A) 172.25.143.2 - That one looks fine.
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