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 Solaris - the command that shares the file systems identified in the /etc/dfs/dfstab file
shareall
Low level file I/O
Hard Link - with syntax
Memory Management Unit (MMU)

2. O - Running - R - Can be Executed - (S)leeping - (Z)ombie - T - Stopped
df -k
Process States
Ext* File System
df -h

3. Phase with a sole function of loading the secondary boot program - ufsboot - and executing it
Ext*
Boot Programs Phase
Six Superblock Components
max_nprocs

4. The web server widely used in the public domain that was based off of a UNIX Web server
Logical Device Name
Init Phase
Apache
/etc/nsswitch.conf

5. Three Files Associated with Each User: _________ - /etc/shadow - and /etc/group
/etc/passwd
Kernel Layer
Binary (already built/compiled)
Apache

6. Syntax to add a path to PATH variable
LDAP Data Interchange Format (LDIF)
PATH=$PATH:/xxx/xxx/bin
Hardware Layer
Schema

7. This Layer consists of user processes that are running - including Shells - UNIX commands - utility programs - and user application programs
Kernel Layer
Instance Device Name
User Layer
useradd -m

8. Shows all possible parameters
Apache Directory Structure
lo0
sysctl -a
strace

9. 4 Kernel Components: __________ - process scheduler - memory management - and system services
SIGHUP 1
Interrupt handlers
/etc/hosts
newgroup

10. 5 Common Solaris/Linux _______: SIGHUP - SIGINT - SIGQUIT - SIGKILL - SIGTERM
File System
Signals
Block File
Kernel Layer

11. Command used to change parameters normally set with useradd
3 - Multi-User Mode
usermod
mount -F nfs hostname:directory / <mount point>
Init Phase

12. Command to view your swap partition in human readable format
SIGKILL 9
Interrupt handlers
df -h
inetd.d

13. File that inetd daemon gets it's instructions from - maintains a file format that is the same across all platforms
free
/etc/inetd.conf
useradd -n
Environment

14. Command to view your swap partition
df -k
Apache Error Log
openldap-servers
sh

15. The hardware device responsible for handling memory accesses requested by the processor
Symbolic Link - with syntax
pwconv
Text File
Memory Management Unit (MMU)

16. The main configuration file for BIND
/etc/named.conf
openldap-clients
Shell
Boot Programs Phase

17. Presents each user with a prompt - executes user commands - and supports a custom environment for each user
openldap-clients
Process scheduling
Shell
/usr/sbin/slurpd

18. Provides the interface to allow user programs to access kernel functions
System call
Device Driver
/etc/group
ufsboot

19. In Linux - the command used to see if there is an exported file system running on a machine
showmount -e <ip address>
newgroup
/etc/xinetd.d
HOME Vaiable

20. Device Information Command that displays system diagnostic messages and a list of attached devices
Apache Directory Structure
dmesg
sh
Ext*

21. An ASCII text representation of LDAP entries that files used for importing data to an LDAP server must be in
LDAP Data Interchange Format (LDIF)
getty and ttymon
mount -F nfs hostname:directory / <mount point>
Inode Table of Contents

22. Two Servers in openldap-servers: /usr/sbin/slapd and ________
System call
usermod
df -F ufs -o i
/usr/sbin/slurpd

23. 'K' and 'S' in rc scripts: K is Kill - S is _______
Spawned
max_nprocs
User to Kernel Transition Process
File Timestamps

24. Three Types of _________: Physical - Instance - and Logical
Run-level Field
Apache Error Log
Device Names
df -v

25. File that controls how hostnames are resolved system-wide
unlink()
/etc/nsswitch.conf
Boot Prom Phase
lo0

26. Two Daemons in Samba for _____ : smbd and nmbd
inetd -t
showmount -e <ip address>
SIGHUP 1
CIFS

27. Default Run Level for Solaris
Kernel Phase
ROOT Account
3 - Multi-User Mode
Network File System (NFS)

28. Contains a list of entries for each user; includes a password placeholder ('x') - UID/GID - home directory - and default shell
/etc/passwd
/etc/nsswitch.conf
Device Driver
df -F ufs -o i

29. A pointer to a file's inode - can be thought of as having the linked file being "the same" as the original; ln <targetfile> <linkfile>
Device Names
Hard Link - with syntax
File Timestamps
Directory Entry

30. File type also known as a folder - it contains other files and directories but will not contain actual data
df -h
Directory File
/etc/nsswitch.conf
Boot Prom

31. Command in Linux that provides an interface to allow you to examine and change parameters in /proc/sys
Boot Prom
Interrupt handlers
sysctl
/etc/inid/nfs.client

32. Command in Linux that shows the status of loadable kernel modules that are currently loaded
lsmod
Hardware Interface Modules
Boot-up
Init Phase

33. Lists the block on the disc where the data is stored - usually has a fixed size
Apache Error Log
5 - Multi-user Mode
Inode Table of Contents
Apache Directory Structure

34. Command that allows files to be "memory mapped" by application programs
Interrupt handlers
df -k
mmap()
UNIX "Rings of Protection"

35. Displays default values when adding a new user with no options
sched PID of '0' -
/etc/hosts
Boot Prom Phase
useradd -D

36. Surest kill
shareall
SIGKILL 9
mount -F nfs hostname:directory / <mount point>
Device File

37. Extra permission bit that allows anyone to run a program with the same privileges as its owner or group - denoted by *
showmount -e <ip address>
Information Commands
SUID/SGID
/etc/init.d

38. The basic file allocation file unit for Ext* - whose size is defined by the superblock
Data Block
Berkeley Internet Name Daemon (BIND)
df -h
free

39. The main configuration file for Apache
max_nprocs
Device
/etc/apache/httpd.conf
sysdef

40. Allows a device driver to be linked into and removed from the kernel while it is running
Kernel Phase
Loadable Kernel Modules (LKM)
df
Restricted Shell

41. An Internet protocol that email and other programs use to look up information from a server
Hardware Address Translation (HAT)
df -k
/etc/shadow
Lightweight Directory Access Protocol (LDAP)

42. located 1024 bytes from the start of the file system and is 1024 bytes in size
System call
Superblock
/etc/shadow
Device File

43. Ordinary file that contains only printable characters
Text File
shareall
/etc/services
id

44. Sysdef parameter that defines the maximum number of processes that will run on the system
max_nprocs
/etc/passwd
Interrupt handlers
Device File

45. Three Steps of Kernel Phase: Create a user process - __________ - and starts other processes by reading /etc/inittab
sysctl -a
Directory Entry
start /sbin/init process
3 - Multi-User Mode

46. Returns system information pertaining to the platform
Schema
uname()
ufsboot
pwconv

47. Defines the way files are named - stored - organized - and accessed on a logical volume
start /sbin/init process
Superblock
File System
Boot Programs Phase

48. Similar to -k; shows block size for each mounted file system
Hardware Address Translation (HAT)
prtconf
df -v
Boot Prom Phase

49. A routine that can be invoked by a C program to access system resources
System Call
Init Phase
/etc/xinetd.d
Trap

50. Similar to -k; shows block size for each mounted file system
df -v
telinit -q
Directory Entry
File System