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. In Linux - the command that controls NFS function






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






3. Frees up memory when a process runs short of memory


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






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






6. Ordinary file that contains only printable characters






7. Loopback interface in ifconfig






8. Returns system information pertaining to the platform






9. The hardware device responsible for handling memory accesses requested by the processor






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






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






12. 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






13. Three Types of System Calls: ____________ - process control - and common controls






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






15. Two Servers in openldap-servers: /usr/sbin/slapd and ________






16. The hardware device responsible for handling memory accesses requested by the processor






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






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






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






20. File that maps IP addresses to hostnames and aliases






21. Programs similar to GINA in Windows that provides the login prompt






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






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






24. File that inetd daemon gets it's instructions from - maintains a file format that is the same across all platforms






25. 6 Hardware Interface Module Functions: ________ - memory management - interrupt handling - low level device control - disk system management - Process synchronization & IPC






26. Quit from terminal






27. Four Phases of the Solaris Boot Process: _______ - Boot Programs - Kernel - and Init






28. A routine that can be invoked by a C program to access system resources






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






30. Three Reference Files on _____ for BASH: .bash_profile - .profile - or .bash_login






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






32. Used to describe the layout of block groups






33. Similar to -k; shows block size for each mounted file system






34. File that contains information on the user's password and data - including encrypted password - min/max days of password change - inactivity timeframe - etc






35. Command will show your used and free inodes






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






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






38. Default Run Level for Solaris






39. Defines the way files are named - stored - organized - and accessed on a logical volume






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






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






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






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






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






45. Default Run Level for Linux






46. O - Running - R - Can be Executed - (S)leeping - (Z)ombie - T - Stopped






47. Default Run Level for Linux






48. This Layer contains the system call interface and handles the mapping between user request and device driver actions - as well as converting user system calls to kernel service calls






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






50. 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