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. Secondary boot program that locates and load the basic kernel
sysdef
mount -F nfs hostname:directory / <mount point>
ufsboot
who -r

2. Makes a socket normally for a TCP (two way) stream
5 - Multi-user Mode
socket()
sysdef
Inode

3. Polls the /etc/inittab file after it has been modified
df -k
telinit -q
who -r
System call

4. init loads from /sbin/init - reads the /etc/inittab file and executes the listed run-control scripts located in /sbin/rd*.d
Run-level Field
inetd.d
fdisk -l
Init Phase

5. Device Name that is used by the system administrator to refer to a particular device by using symbolic links - stored in the /dev directory
unlink()
System call
Logical Device Name
Boot Prom

6. Programs similar to GINA in Windows that provides the login prompt
openldap
getty and ttymon
free
df -h

7. Command will show your used and free inodes
'#'
free
Text File
df -F ufs -o i

8. Command that displays the amount of free and used memory
df -F ufs -o i
Superblock
strace
free

9. File where group memberships are established - inluding group names - encrypted password - GID - and users in each group
I/O services
free
SUID/SGID
/etc/group

10. Commands used to change your current run-level
Schema
init and telinit
Device File
HOME Vaiable

11. Four Fields of /etc/inittab: Label Name - __________ - Action - Command
inetd.d
Inode
df -h
Run-level Field

12. In Solaris - this shares the filesystem pointed to the <path> - where -F identifies the file system type
df -k
sh
share -F nfs /<path>
LDAP Data Interchange Format (LDIF)

13. Four Fields of /etc/inittab: Label Name - __________ - Action - Command
Run-level Field
init and telinit
Trap
mmap()

14. Two Types of Variables: Local and ________
Hardware Address Translation (HAT)
Environment
Network File System (NFS)
showmount -e <ip address>

15. Three File Types: Ordinary - Directory - _______
File Timestamps
Device
smbd
Inode Table of Contents

16. Controls the hardware that manages mapping of virtual to physical memory
Berkeley Internet Name Daemon (BIND)
free
before /etc/profile
Hardware Address Translation (HAT)

17. The command to report file system disk space usage
Process States
LDAP Data Interchange Format (LDIF)
df
Binary

18. 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
Kernel Layer
Hardware Address Translation (HAT)
Environment
uname()

19. Command that displays the names of the kernel parameters and their current values
share -F nfs /<path>
sysdef
df -v
rpcinfo -p

20. Default Run Level for Solaris
3 - Multi-User Mode
Three Types of Signals
Kernel Phase
Device File

21. Contains a list of entries for each user; includes a password placeholder ('x') - UID/GID - home directory - and default shell
/etc/passwd
/etc/resolv.conf
Text File
df -k

22. 6 Hardware Interface Module Functions: ________ - memory management - interrupt handling - low level device control - disk system management - Process synchronization & IPC
System Call Interface
User Layer
uname()
Process scheduling

23. Applys changes to /etc/sysctl.conf
/proc/sys
sysctl -p
lo0
'#'

24. An Internet protocol that email and other programs use to look up information from a server
UNIX "Rings of Protection"
Lightweight Directory Access Protocol (LDAP)
.profile
newgroup

25. Phase where the kernel initializes itself and begins loading modules using ufsboot. Once finished - it unmaps ufsboot
LDAP Data Interchange Format (LDIF)
socket()
Loadable Kernel Modules (LKM)
Kernel Phase

26. For Samba - it provides name resolution and service announcement
groupadd
nmbd
mmap()
Device Names

27. Four Phases of the Solaris Boot Process: _______ - Boot Programs - Kernel - and Init
Boot Prom
uname()
Process States
Interrupt

28. 4 Kernel Layer Functions: Process creation and termination - ________- file/disk access services - terminal handling services
init and telinit
sysctl -a
I/O services
openldap-servers

29. Loopback interface in ifconfig
df -F ufs -o i
lo0
Restricted Shell
Ordinary File

30. 'Active Directory for Solaris' that is designed to eliminate the need to duplicate configuration data by using a centrailzed master server instead
sysctl -p
modinfo
Network Information Service Plus (NIS+)
Spawned

31. These are found within the kernel layer at the level closest to the hardware
strace
Hardware Interface Modules
/etc/xinetd.d
HOME Vaiable

32. Ordinary file that contains both printable and non-printable characters - ex - most UNIX executables
/etc/group
mmap()
SIGKILL 9
Binary File

33. Provides the interface to allow user programs to access kernel functions
System call
sh
useradd -n
Binary File

34. Makes the new home directory if it does not exist
useradd -m
Device Names
CIFS
ROOT Account

35. Lists the block on the disc where the data is stored - usually has a fixed size
Inode Table of Contents
Device
mmap()
Shell

36. Ordinary file that contains only printable characters
System call
.profile
Superblock
Text File

37. The way used in LDAP to describe the format and attributes of data in the server
Schema
Shell
nmbd
sysdef

38. The core of the operating system that is loaded into memory at system boot; it manages the hardware and performs system services
/etc/apache/httpd.conf
mount -F nfs hostname:directory / <mount point>
df -k
Kernel

39. Software interrupt that's processed immediately that's generated by a currently running process
openldap-servers
sysctl -p
Kernel Layer
Trap

40. Virtual directory that provides an interface to sysctl parameters - allowing you to examine and change them
/proc/sys
5 - Multi-user Mode
Boot Prom Phase
Boot Prom

41. The web server widely used in the public domain that was based off of a UNIX Web server
Init Phase
Apache
Process scheduling
Hardware Interface Modules

42. Command that verifies the current run-level
File System
Process scheduling
who -r
Ordinary File

43. LDAP package that contains the libraries necessary to run the Open LDAP server
showmount -e <ip address>
openldap
Run-level Field
/etc/group

44. Allows a device driver to be linked into and removed from the kernel while it is running
Memory Management Unit (MMU)
Information Commands
Loadable Kernel Modules (LKM)
before /etc/profile

45. Creates a user with default group; if not given - a new group with the user's name will be created
/proc/sys
getty and ttymon
Logical Device Name
useradd -n

46. Sysdef parameter that defines the maximum number of processes that will run on the system
User Layer
Process States
max_nprocs
Library Function

47. Daemon that is used for viewing network services in Linux - has more customization than the Solaris counterpart
/etc/xinetd.d
Kernel
sysctl
touch -m/-a

48. Default shell for Solaris
getty and ttymon
/proc/sys
sh
Superblock

49. Converts a process running in user mode to a protected kernel mode process
sysctl
useradd -n
sysctl -p
System Call Interface

50. The profile in UNIX that all users get _______ using their own profile
Loadable Kernel Modules (LKM)
Memory Management Unit (MMU)
openldap-servers
before /etc/profile