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. Device Information Command that displays system config info including total memory and device configuration






2. located 1024 bytes from the start of the file system and is 1024 bytes in size






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






4. Total number of inodes and blocks - block size - number of blocks/inodes per group and number or reserved blocks before the first block group






5. Ordinary file that contains both printable and non-printable characters - ex - most UNIX executables






6. Used to describe the layout of block groups






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






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






9. Character used to stop a service from starting during boot up


















































































































































































































10. In Solaris - the command that shares the file systems identified in the /etc/dfs/dfstab file






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






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






13. Three Unique _________ Characteristics: Cannot be renamed/deleted - has a user ID of 0 - and has a prompt of '#'






14. 4 Kernel Layer Functions: Process creation and termination - ________- file/disk access services - terminal handling services






15. A low level program that allows the kernel to communicate with the specific piece of hardware






16. Controls the hardware that manages mapping of virtual to physical memory






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






18. Hangup - restarts a daemon






19. This file type contains only data as a stream of characters - also known as a regular file






20. A simple data structure that contains the file name and the inode address where the file's metadata can be found - also contains a pointer to the next entry






21. The core of the operating system that is loaded into memory at system boot; it manages the hardware and performs system services






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






23. Command used to print UID and GID






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






25. Returns system information pertaining to the platform






26. System Calls: fork() - creates a child process - wait() - exit() - __________ - execl() - execlp() - execv() - execvp()






27. Daemon that lists port/service mappings






28. LDAP package that contains command line tools for viewing/modifying directories on an LDAP server






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






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






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






32. Device Information Command that displays device config information including hardware - pseudo devices - etc






33. Most commonly used file system based on Unix File System






34. Command to view your swap partition in human readable format






35. Default Run Level for Linux






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






37. This Layer consists of user processes that are running - including Shells - UNIX commands - utility programs - and user application programs






38. Quit from terminal






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






40. Controls the hardware that manages mapping of virtual to physical memory






41. Default termination signal






42. Extra permission bit that allows anyone to run a program with the same privileges as its owner or group - denoted by *






43. Three Files Associated with Each User: _________ - /etc/shadow - and /etc/group






44. Command used to switch to a new group before creating a file that would be used by a different current group - similar to 'su'






45. Three Types of _________: Physical - Instance - and Logical






46. The web server widely used in the public domain that was based off of a UNIX Web server






47. Allows you to change a variable in the sysctl.conf






48. Makes a socket normally for a TCP (two way) stream






49. Displays process list with attributes






50. For Samba - it implements file and print services - as well as authentication and authorization