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Common Unix Administrator Interview Questions

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1. How much will it take to install [OS: Solaris, AIX, HP-UX, SunOS, ...] ?
2. What is defference between [OS1 & OS2, e.g. SunOS 4.1.x and SunOS 5.x]?
3. How much will it take to install [Protocol: DNS, SMTP, NNTP etc.] ?
4. Which ports do telnet/ftp/mail use ?
5. How much will it take to create sendmail.cf from scratch ?
6. Give me full commands for backing up and restoring entire file system.
7. What is defference between sed, awk, perl?
8. Can you run fsck on mounted file system?
9. What is defference between PRESTOSERV and NVRAM? What is it for? What is better? Which one does comsume more SBUS performance? Why? Can PRESTOSERV and NVRAM improve NFS performance for root file system ?
10. Do we need SuperCache (for SS10 ) to improve performance of WEB server or DB server?
11. What command can be used to change parameters for /dev/ip and /dev/tcp?
12. What tools did you use to monitor performance?