Test your basic knowledge |

Unix Operating System

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. User space (outer ring) - the area in memory where user processes run and Kernel space (inner ring) - where kernel services are provided via kernel processes






2. Gives UNIX/Linux users the ability to access shared resources on Windows machines by implementing CIFS






3. Virtual directory that provides an interface to sysctl parameters - allowing you to examine and change them






4. Where master copies of the startup scripts resides






5. Command will show your used and free inodes






6. Command in Solaris that lists the modules that are currently loaded






7. Presents each user with a prompt - executes user commands - and supports a custom environment for each user






8. These are found within the kernel layer at the level closest to the hardware






9. Types Two ___________: Block and Character






10. For Samba - it provides name resolution and service announcement






11. Secondary boot program that locates and load the basic kernel






12. Two Ordinary File Types: Text and ______






13. Polls the /etc/inittab file after it has been modified






14. In Solaris - the daemon required to use NFS






15. File where group memberships are established - inluding group names - encrypted password - GID - and users in each group






16. Returns system information pertaining to the platform






17. Four Fields of /etc/inittab: Label Name - __________ - Action - Command






18. Daemon that is used for viewing network services in Linux - has more customization than the Solaris counterpart






19. Command in Linux that provides an interface to allow you to examine and change parameters in /proc/sys






20. Similar to DLLs in Windows that can be built upon and around system calls






21. Converts a process running in user mode to a protected kernel mode process






22. Two Types of _______________: Root (AKA Boot) and Swap






23. This Layer includes hardware such as CPU - system memory - the terminal - disks - CD-ROM - and NIC






24. Ordinary file that contains only printable characters






25. Allow the user to share file systems among networked connections






26. Command used to view system calls accessed during the execution of a command on Linux systems






27. Command to view your swap partition






28. Four Ext* _________: Modify - Access - Change - Delete






29. Two Basic Components of ___: Superblock data structure and Group Descriptor Table






30. Three Steps of Kernel Phase: Create a user process - __________ - and starts other processes by reading /etc/inittab






31. Two Ways to Stop Services in Linux: Editing the _______ service file - and using the chkconfig command






32. The way used in LDAP to describe the format and attributes of data in the server






33. Command in Linux that shows the status of loadable kernel modules that are currently loaded






34. File type also known as a folder - it contains other files and directories but will not contain actual data






35. 4 Kernel Layer Functions: Process creation and termination - ________- file/disk access services - terminal handling services






36. The basic file allocation file unit for Ext* - whose size is defined by the superblock






37. Command that displays the amount of free and used memory






38. Command that allows files to be "memory mapped" by application programs






39. Phase where the kernel initializes itself and begins loading modules using ufsboot. Once finished - it unmaps ufsboot






40. Sent by hardware when it needs the processors' attention - caused by an external event






41. Commands that reveals all *nix file systems - including disk space usage and their logical mount points






42. init loads from /sbin/init - reads the /etc/inittab file and executes the listed run-control scripts located in /sbin/rd*.d






43. Two Types of Variables: Local and ________






44. Can be configured to restrict the activities of users by modifying the last entry in the /etc/passwd






45. In Solaris - the command that shows a machine with an exported file system






46. Quit from terminal






47. Terminal (CTRL+C) - Administrator ("kill") - Kernel (divide by zero)






48. Command that verifies the current run-level






49. Device Information Command that displays system diagnostic messages and a list of attached devices






50. When a user process executes a system call and begins executing kernel code