Exam SY0-501 topic 1 question 739 discussion

Actual exam question from CompTIA's SY0-501

Question #: 739
Topic #: 1

A security analyst is running a credential-based vulnerability scanner on a Windows host. The vulnerability scanner is using the protocol NetBIOS over TCP/IP to connect to various systems, However, the scan does not return any results. To address the issue, the analyst should ensure that which of the following default ports is open on systems?

A. 135
B. 137
C. 3389
D. 5060

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Suggested Answer: B 🗳️

by AsymmetricMalware at Aug. 1, 2020, 2:09 p.m.

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AsymmetricMalware

Highly Voted 5 years ago

NetBIOS provides three distinct services: Name service for name registration and resolution (ports: 137/udp and 137/tcp) Datagram distribution service for connectionless communication (port: 138/udp) Session service for connection-oriented communication (port: 139/tcp) From https://en.wikipedia.org/wiki/NetBIOS_over_TCP/IP

upvoted 13 times

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KeanoD

Most Recent 4 years, 1 month ago

Are we supposed to know every and each port number usual assignment?

upvoted 2 times

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Cindan

4 years, 5 months ago

NetBIOS over TCP traditionally uses the following ports: nbname: 137/UDP. nbname: 137/TCP. nbdatagram: 138/UDP.

upvoted 1 times

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