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LPI 201-450 Exam - Topic 3 Question 82 Discussion

Actual exam question for LPI's 201-450 exam
Question #: 82
Topic #: 3
[All 201-450 Questions]

The following is an excerpt from the output of tcpdump -nli eth1 'udp':

13:03:17.277327 IP 192.168.123.5.1065 > 192.168.5.112.53: 43653+ A? lpi.org. (25)

13:03:17.598624 IP 192.168.5.112.53 > 192.168.123.5.1065: 43653 1/0/0 A 198.51.100.42 (41)

Which network service or protocol was used?

Show Suggested Answer Hide Answer
Suggested Answer: D, E

by Tarra at Mar 07, 2024, 11:26 AM

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Belen
6 months ago
Nah, could be something else, right?
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Rodrigo
6 months ago
The port 53 confirms it's DNS.
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Casie
6 months ago
Wait, are we sure about that?
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Lyndia
7 months ago
Totally agree, it's definitely DNS.
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Eliz
7 months ago
Looks like a DNS query to me.
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Kathrine
7 months ago
I thought FTP used different ports, but I'm confused about the other options. Could it really be DNS?
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Alecia
7 months ago
This question seems similar to one we practiced where we analyzed packet captures. I think the answer is definitely D, DNS.
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Josphine
7 months ago
I'm not entirely sure, but I feel like the presence of port 53 in the output indicates it's related to DNS.
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Reynalda
8 months ago
I remember studying about DNS queries and how they look in tcpdump, so I think the answer is D, DNS.
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Magdalene
8 months ago
I'm a bit confused by all the technical details in the question. Can someone explain what tcpdump is and how to interpret this output?
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Azzie
8 months ago
Easy peasy! The destination port is 53, which is the standard port for DNS, so the answer is clearly D.
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Audria
8 months ago
Hmm, I'm not too sure about this one. The packet details mention UDP, so it could be DHCP as well. I'll have to think this through carefully.
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Jaclyn
8 months ago
This looks like a DNS query, so I'll go with option D.
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Margart
8 months ago
The key here is the destination port of 53, which indicates DNS traffic. I'm confident that D is the correct answer.
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Quentin
8 months ago
Hmm, I'm not too familiar with these government accessibility templates. I'll need to think this through and try to eliminate the options that don't seem quite right.
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Leatha
8 months ago
I'm a little confused by the wording of the question. Can someone clarify what exactly they're looking for in terms of the fraud scheme being described?
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Fletcher
8 months ago
This seems like a straightforward question about communicating risk assessment results. I'll focus on identifying the key elements that support effective communication with stakeholders.
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Frank
1 year ago
I'd like to see a version of this question that involves a 'traceroute' output. Now that would be a real brain-teaser!
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Louvenia
1 year ago
Okay, time to put my networking skills to the test! Let's see if I can ace this one.
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Jamey
12 months ago
C) SSH
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Nguyet
1 year ago
B) HTTP
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Tamesha
1 year ago
A) DNS
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Donette
1 year ago
Hmm, this is a no-brainer. Anyone who's ever used the internet should know that this is a DNS lookup.
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Val
1 year ago
DNS is used for translating domain names to IP addresses.
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Lenny
1 year ago
I agree, DNS is the correct answer.
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Alex
1 year ago
Yep, you're right. It's definitely a DNS lookup.
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Clay
1 year ago
Haha, I bet the person who wrote this question is a real network geek! But hey, at least it's not a trick question.
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Penney
1 year ago
E) DHCP
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Mona
1 year ago
C) SSH
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Marica
1 year ago
D) DNS
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Merissa
1 year ago
B) HTTP
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Laine
1 year ago
Yes, the IP addresses and port numbers in the output suggest DNS was used.
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Jenelle
1 year ago
I agree with Laurene, the output from tcpdump indicates DNS.
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Kaycee
1 year ago
The output clearly shows a DNS query and response, so the correct answer is D) DNS.
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Dana
1 year ago
Yes, you're right. It was a DNS query and response.
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Garry
1 year ago
I think the correct answer is D) DNS.
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Laurene
1 year ago
I think the network service or protocol used was DNS.
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