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LPI 300-300 Exam - Topic 3 Question 13 Discussion

Which of the following TCP ports is used to provide the SMB protocol without NetBIOS?
E) 445
A) 133
B) 138
C) 139
D) 386

LPI 300-300 Exam - Topic 3 Question 13 Discussion

Actual exam question for LPI's 300-300 exam
Question #: 13
Topic #: 3
[All 300-300 Questions]

Which of the following TCP ports is used to provide the SMB protocol without NetBIOS?

Show Suggested Answer Hide Answer
Suggested Answer: E

The SMB protocol (Server Message Block) is used for providing shared access to files and printers.

Historically, SMB ran on top of NetBIOS over TCP/IP using port 139.

SMB can also run directly over TCP/IP without the NetBIOS layer, which uses port 445.

Therefore, TCP port 445 is used to provide the SMB protocol without NetBIOS.


Official IANA port numbers: https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml

Microsoft documentation on SMB: https://docs.microsoft.com/en-us/windows/win32/fileio/microsoft-smb-protocol-and-cifs-protocol-overview

by Lisha at Sep 11, 2024, 04:29 AM

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Estrella
9 months ago
Just to clarify, 138 is for NetBIOS datagram service, right?
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Santos
9 months ago
445 is the standard for that, no doubt!
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Alana
9 months ago
Wait, are you sure? I thought it was 139.
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Curtis
10 months ago
Agreed, 445 is the right one!
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Chan
10 months ago
It's definitely port 445 for SMB without NetBIOS.
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Xuan
10 months ago
I feel like I’ve seen 138 mentioned in some context, but I’m pretty sure it’s not the right answer for this question.
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Dorthy
10 months ago
I’m a bit confused; I thought SMB used both 139 and 445, but I guess 445 is the one without NetBIOS?
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Page
10 months ago
I remember practicing a similar question, and I think 139 is related to NetBIOS, so it can't be the answer.
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William
11 months ago
I think SMB without NetBIOS uses port 445, but I’m not entirely sure.
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Twanna
11 months ago
I've got a good feeling about option E. 445 seems like the most likely answer based on what I know about SMB.
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Sharika
11 months ago
Okay, let me review the networking protocols again. I want to make sure I get this right.
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Jenelle
11 months ago
Port 139 is the traditional SMB port, but I think the question is asking about the newer SMB over TCP protocol, which uses port 445.
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Sabine
11 months ago
Hmm, I'm a bit unsure about this one. I'll have to think it through carefully.
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Daniela
11 months ago
I'm pretty sure it's port 445 for SMB without NetBIOS.
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Derrick
2 years ago
I bet the correct answer is 'all of the above' just to mess with us.
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Quentin
2 years ago
I believe it's E) 445 because NetBIOS is not needed for SMB protocol on that port.
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Salena
2 years ago
Ah, I remember learning this in my networking class. Gotta be 445, right?
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Marcelle
2 years ago
Wait, does SMB even work without NetBIOS? I'm scratching my head here.
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Kassandra
2 years ago
Good to know, thanks for clarifying!
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Alexis
2 years ago
Yeah, E) 445 is correct. SMB can work without NetBIOS.
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Rebeca
2 years ago
I think it's E) 445.
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Jesus
2 years ago
E) 445
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Ludivina
2 years ago
D) 386
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Mitsue
2 years ago
C) 139
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Nicolette
2 years ago
B) 138
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Jaclyn
2 years ago
A) 133
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Pansy
2 years ago
I'm not sure, but I think it's either C) 139 or E) 445.
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Gracia
2 years ago
Hmm, I thought SMB was all about NetBIOS. This is a tricky one!
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Lasandra
2 years ago
Thanks for clarifying that! I'll remember that for next time.
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Nidia
2 years ago
Yeah, I agree. E) 445 is the correct answer for SMB without NetBIOS.
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Raelene
2 years ago
I think it's E) 445
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Jesus
2 years ago
E) 445
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Jess
2 years ago
D) 386
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Dortha
2 years ago
C) 139
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Lorita
2 years ago
Thanks for the clarification!
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Vincent
2 years ago
Yeah, I agree. E) 445 is the correct answer.
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Pansy
2 years ago
I think it's E) 445
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Lakeesha
2 years ago
E) 445
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Lai
2 years ago
D) 386
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Arlette
2 years ago
B) 138
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Lashawn
2 years ago
A) 133
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Oretha
2 years ago
C) 139
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Buffy
2 years ago
B) 138
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Markus
2 years ago
A) 133
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Fletcher
2 years ago
I agree with Celeste, port 445 is used for SMB protocol without NetBIOS.
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Celeste
2 years ago
I think the answer is E) 445.
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