CompTIA
CAS-003 · Question #77
CAS-003 Question #77: Real Exam Question with Answer & Explanation
The correct answer is C: Solaris. TCP/22 is used for SSH; TCP/111 is used for Sun RPC; TCP/512-514 is used by CMD like exec, but automatic authentication is performed as with a login server, etc. These are all ports that are used when making use of the Sun Solaris operating system.
Question
Ann, a systems engineer, is working to identify an unknown node on the corporate network. To begin her investigative work, she runs the following nmap command string: user@hostname:~$ sudo nmap -O 192.168.1.54 Based on the output, nmap is unable to identify the OS running on the node, but the following ports are open on the device: TCP/22 TCP/111 TCP/512-514 TCP/2049 TCP/32778 Based on this information, which of the following operating systems is MOST likely running on the unknown node?
Options
- ALinux
- BWindows
- CSolaris
- DOSX
Explanation
TCP/22 is used for SSH; TCP/111 is used for Sun RPC; TCP/512-514 is used by CMD like exec, but automatic authentication is performed as with a login server, etc. These are all ports that are used when making use of the Sun Solaris operating system.
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