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. Ordinary file that contains only printable characters
Kernel
/etc/apache/httpd.conf
Text File
df -h

2. 6 Hardware Interface Module Functions: ________ - memory management - interrupt handling - low level device control - disk system management - Process synchronization & IPC
/etc/apache/httpd.conf
ROOT Account
Hardware Address Translation (HAT)
Process scheduling

3. The main configuration file for Apache
5 - Multi-user Mode
Kernel
nmbd
/etc/apache/httpd.conf

4. Command will show your used and free inodes
User Layer
df -F ufs -o i
share -F nfs /<path>
Spawned

5. Similar to -k; shows block size for each mounted file system
modinfo
df -v
sysctl -a
newgroup

6. Sent by hardware when it needs the processors' attention - caused by an external event
/etc/shadow
Interrupt
init and telinit
PATH=$PATH:/xxx/xxx/bin

7. Software interrupt that's processed immediately that's generated by a currently running process
smbd
inetd.d
Trap
Inode Table of Contents

8. File that controls how hostnames are resolved system-wide
CIFS
before /etc/profile
Boot-up
/etc/nsswitch.conf

9. Device Information Command that displays system config info including total memory and device configuration
Process scheduling
prtconf
Apache Error Log
Kernel Phase

10. Similar to DLLs in Windows that can be built upon and around system calls
Memory Management Unit (MMU)
SIGKILL 9
df -h
Library Function

11. Device Information Command that displays system diagnostic messages and a list of attached devices
who -r
start /sbin/init process
Interrupt handlers
dmesg

12. Creates a user with default group; if not given - a new group with the user's name will be created
HOME Vaiable
useradd -n
who -r
Boot Programs Phase

13. Default Run Level for Solaris
3 - Multi-User Mode
Signals
Ext*
Block File

14. Two Types of Variables: Local and ________
/etc/xinetd.d
Environment
share -F nfs /<path>
Ext*

15. Four Ext* _________: Modify - Access - Change - Delete
Device
File Timestamps
Lightweight Directory Access Protocol (LDAP)
Hardware Layer

16. Terminal (CTRL+C) - Administrator ("kill") - Kernel (divide by zero)
Environment
Ordinary File
Three Types of Signals
5 - Multi-user Mode

17. LDAP package that contains command line tools for viewing/modifying directories on an LDAP server
init and telinit
Spawned
openldap-clients
/etc/nsswitch.conf

18. Command used to view RPC services and their appropriate ports
rpcinfo -p
lsmod
sysdef
Inode Table of Contents

19. Phase where the kernel initializes itself and begins loading modules using ufsboot. Once finished - it unmaps ufsboot
Kernel Phase
Process scheduling
mount -F nfs hostname:directory / <mount point>
Boot Prom

20. Device Name that is used by the system administrator to refer to a particular device by using symbolic links - stored in the /dev directory
/etc/named.conf
SIGHUP 1
Logical Device Name
Signals

21. Three File Types: Ordinary - Directory - _______
Lightweight Directory Access Protocol (LDAP)
Directory File
Symbolic Link - with syntax
Device

22. Converts a process running in user mode to a protected kernel mode process
Signals
System Call Interface
who -r
free

23. The web server widely used in the public domain that was based off of a UNIX Web server
umask
Ext* File System
Apache
newgroup

24. Two Daemons in Samba for _____ : smbd and nmbd
df
CIFS
free
Inode

25. Contains a list of entries for each user; includes a password placeholder ('x') - UID/GID - home directory - and default shell
free
/usr/sbin/slurpd
Hardware Address Translation (HAT)
/etc/passwd

26. Command in Linux that provides an interface to allow you to examine and change parameters in /proc/sys
Ext* File System
sysctl -a
sysctl
Logical Device Name

27. Most commonly used file system based on Unix File System
Kernel
ufsboot
Run-level Field
Ext* File System

28. Two Basic Components of ___: Superblock data structure and Group Descriptor Table
touch -m/-a
Ext*
Boot Programs Phase
Directory File

29. Default Run Level for Solaris
showmount -e <ip address>
unlink()
3 - Multi-User Mode
Character File

30. Gives UNIX/Linux users the ability to access shared resources on Windows machines by implementing CIFS
touch -m/-a
uname()
Samba
/usr/sbin/slurpd

31. Where master copies of the startup scripts resides
/etc/init.d
Hardware Address Translation (HAT)
/etc/resolv.conf
bash

32. Controls the hardware that manages mapping of virtual to physical memory
/proc/sys
Hardware Address Translation (HAT)
df -h
Interrupt

33. In Solaris - the daemon required to use NFS
newgroup
/usr/sbin/slurpd
sysctl -a
/etc/inid/nfs.client

34. File where group memberships are established - inluding group names - encrypted password - GID - and users in each group
/etc/xinetd.d
/etc/group
Kernel Layer
Inode Table of Contents

35. The main configuration file for BIND
SIGHUP 1
dmesg
/etc/named.conf
Kernel

36. LDAP package that contains the servers and other utilities necessary to configure and run the LDAP server
ps -elf
Shell
Kernel
openldap-servers

37. Default termination signal
/etc/shadow
SIGTERM 15
Physical Device Name
unlink()

38. Secondary boot program that locates and load the basic kernel
groupadd
newgroup
sched PID of '0' -
ufsboot

39. In Solaris - the command that shows a machine with an exported file system
socket()
showmount -e <ip address>
/etc/named.conf
/etc/apache/httpd.conf

40. 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
/etc/init.d
UNIX "Rings of Protection"
Hardware Interface Modules
Boot Prom Phase

41. Hangup - restarts a daemon
SIGHUP 1
uname()
System Call Interface
nmbd

42. Where Apache keeps it's essential files - stored in /var/apache
Six Superblock Components
CIFS
Apache Server Root
Kernel

43. Where the main log files reside - including the Access_log and Error_log
Schema
Apache Error Log
ufsboot
Hard Link - with syntax

44. Can be configured to restrict the activities of users by modifying the last entry in the /etc/passwd
Restricted Shell
df -h
Process States
touch -m/-a

45. A file that contains the name of another file - similar to a shortcut; ln -s <targetfile> <linkfile>
Text File
Symbolic Link - with syntax
Hardware Layer
Apache Error Log

46. For Samba - it implements file and print services - as well as authentication and authorization
SIGQUIT 3
smbd
File System
sysdef

47. Four Fields of /etc/inittab: Label Name - __________ - Action - Command
Lightweight Directory Access Protocol (LDAP)
Run-level Field
User Layer
Logical Device Name

48. The hardware device responsible for handling memory accesses requested by the processor
df -k
Memory Management Unit (MMU)
Apache Error Log
inetd -t

49. Command used to change parameters normally set with useradd
Init Phase
groupadd
Kernel
usermod

50. Four Phases of the Solaris Boot Process: _______ - Boot Programs - Kernel - and Init
System call
sysctl -a
Group Descriptor Table
Boot Prom