Reference no: EM13753371

Question 1: What file in the etc/ directory contains user's hashed password?

Question 2: What file and file-field are read by the finger command?

Question 3: When a parent process dies, what happens to any child processes that are still running?

Question 4: What is the effect of the command: $ killall root (Where root is the root account of the system)

Question 5: List 4 shortcomings of root accounts.

Question 6: Write a BASH command that would force the OS into single-user mode.

Question 7: Explain when it would be necessary to use the non-rewinding interface file of any backup device.

Question 8: What BASH shell command can send any signal level to a running process?

Question 9: Which two inter-process signals cannot be caught or blocked?

Question 10: What BASH shell utility allows you to monitor CPU and memory usage?

Question 11: In the file permission listing drwxr-xr-x, what is the file type?

Question 12: In the file permission listing -rwsr--r--, what does ‘s' signify?

Question 13: Create a BASH script that performs file system cleanup by finding and removing all files in and below your home directory that have a (.core) or (.tmp) extension.

Question 14: Show the crontab file entry that would run the script from question 1, every Monday, Wednesday, and Friday at 5:30 AM. Assume the name of the script is fileCleanup.sh and that it is located in the ~/script directory.

Question 15: Create another script that asks a user to enter a search term from the console & then uses that term with grep to search all log files in the dev/logs directory for matching lines.

Question 16: What regular expression would you type into the script from question 33 if you were looking for kernel errors in the category or kern.alert, kern.crit, or kern.emerg?

Question 17: Write a regular expression that would find date fields of the form: mm-dd-yyyy and where the field is delineated with either tabs or spaces.

Question 18: Compare and contrast the use of conventional hard-drives as a primary storage medium against the newer Solid State Devices, (SSDs).
 
Question 19: Describe the part of the boot process that locates and mounts an Operating System to main memory.