CAS-001 · Question #468
CAS-001 Question #468: Real Exam Question with Answer & Explanation
The correct answer is C: Solaris. The combination of open ports is a classic fingerprint for Solaris or older UNIX systems. TCP/111 is the portmapper/rpcbind service, TCP/2049 is NFS (Network File System), and TCP/32778 is a high-numbered RPC service registered with portmapper - all hallmarks of Solaris's heavy r
Question
Options
- ALinux
- BWindows
- CSolaris
- DOSX
Explanation
The combination of open ports is a classic fingerprint for Solaris or older UNIX systems. TCP/111 is the portmapper/rpcbind service, TCP/2049 is NFS (Network File System), and TCP/32778 is a high-numbered RPC service registered with portmapper - all hallmarks of Solaris's heavy reliance on Sun RPC and NFS. TCP/512-514 are the Berkeley r-commands (rexec, rlogin, rsh), which were common in traditional UNIX environments and are strongly associated with Solaris. Linux would typically not expose r-commands by default in modern configurations. Windows does not natively use these services. macOS (OSX) does support some of these but the full combination - especially the r-commands alongside RPC/NFS - strongly points to Solaris.
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