[Solved] Linux Programming Challenge : 001

Fancy your Linux Programming skills ? Take this challenge and answer these simple 5 questions related to Linux System and Linux Programming.

Update : Solutions added

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1. If getppid() returns the parent process id, what does getepid() return ?
• • Effective user id


2. Which daemon is used to update log files on a Linux system ?
• • syslogd


3. Which is the only directory [ filesystem ] on a Linux machine that does not exist on the hard disk ?
• • The proc filesystem that resides at /proc


4. Will a hardlink have an inode number different from the inode of the file it links to ? Or is this the case with a soft link ?
• • Hardlink and the file it links to use the same inode number
  • Softlink and the file it links to use different inode numbers


5. What is the default file permission of all newly created files when the umask is 0755 ?
• • 022 [ only group users and others can write to this file !!! ]