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. Command that verifies the current run-level
File Timestamps
start /sbin/init process
who -r
Device Driver

2. Four Phases of the Solaris Boot Process: _______ - Boot Programs - Kernel - and Init
who -r
/usr/sbin/slurpd
Boot Prom
unlink()

3. Daemon that is used to configure network services in Solaris
Ordinary File
mmap()
inetd.d
strace

4. 5 Common Solaris/Linux _______: SIGHUP - SIGINT - SIGQUIT - SIGKILL - SIGTERM
Signals
df -v
Kernel Phase
Apache Server Root

5. These are found within the kernel layer at the level closest to the hardware
Boot Prom Phase
User to Kernel Transition Process
who -r
Hardware Interface Modules

6. These are found within the kernel layer at the level closest to the hardware
Interrupt
useradd -m
Apache Error Log
Hardware Interface Modules

7. Three Types of System Calls: ____________ - process control - and common controls
Low level file I/O
ufsboot
Device Names
Device File

8. Ordinary file that contains only printable characters
Inode Table of Contents
File Timestamps
df -k
Text File

9. Shows all possible parameters
smbd
Group Descriptor Table
bash
sysctl -a

10. The basic file allocation file unit for Ext* - whose size is defined by the superblock
Environment
Library Function
Data Block
Boot Prom Phase

11. File that maps IP addresses to hostnames and aliases
/etc/hosts
Kernel Phase
File System
Kernel

12. For Samba - it implements file and print services - as well as authentication and authorization
smbd
SIGKILL 9
showmount -e <ip address>
3 - Multi-User Mode

13. 'Active Directory for Solaris' that is designed to eliminate the need to duplicate configuration data by using a centrailzed master server instead
Network Information Service Plus (NIS+)
sysctl -w
Memory Management Unit (MMU)
df -h

14. In Solaris - the daemon required to use NFS
File System
sysctl
Binary (already built/compiled)
/etc/inid/nfs.client

15. Phase with a sole function of loading the secondary boot program - ufsboot - and executing it
Boot Programs Phase
Hard Link - with syntax
Init Phase
max_nprocs

16. Two Ways to Stop Services in Linux: Editing the _______ service file - and using the chkconfig command
useradd -n
Schema
/etc/xinetd.d
df -h

17. 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
Apache Document Root
Directory Entry
ufsboot
Hard Link - with syntax

18. Makes the new home directory if it does not exist
useradd -m
SUID/SGID
Kernel Layer
unlink()

19. Four Fields of /etc/inittab: Label Name - __________ - Action - Command
useradd -m
File System Structures
/etc/hosts
Run-level Field

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
File Timestamps
Apache Error Log
smbd
Logical Device Name

21. Gives UNIX/Linux users the ability to access shared resources on Windows machines by implementing CIFS
/etc/resolv.conf
/etc/init.d
Samba
Device File

22. The hardware device responsible for handling memory accesses requested by the processor
File Timestamps
System Call Interface
5 - Multi-user Mode
Memory Management Unit (MMU)

23. Command in Solaris that lists the modules that are currently loaded
share -F nfs /<path>
modinfo
mount -F nfs hostname:directory / <mount point>
useradd -m

24. In Solaris/Linux - the command used to mount a share from a server to a client's system
sched PID of '0' -
lo0
System Call
mount -F nfs hostname:directory / <mount point>

25. 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>
File System
/etc/inid/nfs.client
Hard Link - with syntax
Interrupt

26. Three Types of _________: Physical - Instance - and Logical
Device Names
Apache Document Root
dmesg
Binary

27. Creates a user with default group; if not given - a new group with the user's name will be created
Ext* File System
sysctl
useradd -n
Berkeley Internet Name Daemon (BIND)

28. Device Information Command that displays system diagnostic messages and a list of attached devices
Hardware Address Translation (HAT)
sysctl -a
dmesg
sh

29. init loads from /sbin/init - reads the /etc/inittab file and executes the listed run-control scripts located in /sbin/rd*.d
max_nprocs
mmap()
Init Phase
Process scheduling

30. Default termination signal
useradd -D
SIGTERM 15
UNIX "Rings of Protection"
.profile

31. The command to report file system disk space usage
df
df -h
getty and ttymon
init and telinit

32. Where the actual HTML web pages reside - stored in /var/apache/htdocs
init and telinit
Apache Document Root
Ext*
usermod

33. Similar to -k; shows block size for each mounted file system
Logical Device Name
df -v
Boot Programs Phase
sysctl

34. Similar to DLLs in Windows that can be built upon and around system calls
Library Function
truss
Spawned
Six Superblock Components

35. Daemon that lists port/service mappings
/etc/services
Inode
inetd.d
uname()

36. Two Servers in openldap-servers: /usr/sbin/slapd and ________
Binary
/usr/sbin/slurpd
System Call Interface
lsmod

37. Most commonly used file system based on Unix File System
Network Information Service Plus (NIS+)
getty and ttymon
Hard Link - with syntax
Ext* File System

38. Commands used to change your current run-level
Symbolic Link - with syntax
init and telinit
df
Group Descriptor Table

39. Command used to print UID and GID
System Call Interface
User to Kernel Transition Process
id
Directory File

40. LDAP package that contains the libraries necessary to run the Open LDAP server
openldap
.profile
Hardware Interface Modules
Apache Document Root

41. Default shell for most *Nix systems
Trap
sysdef
bash
Kernel Phase

42. The data structure that contains metadata for every file and directory - has a fixed 128 bye size
LDAP Data Interchange Format (LDIF)
Inode
bash
telinit -q

43. The profile in UNIX that all users get _______ using their own profile
.profile
before /etc/profile
Directory Entry
/etc/passwd

44. Commands that reveals all *nix file systems - including disk space usage and their logical mount points
/etc/passwd
df -k
/usr/sbin/slurpd
Run-level Field

45. The main configuration file for BIND
/etc/named.conf
useradd -D
Network File System (NFS)
inetd -t

46. The web server widely used in the public domain that was based off of a UNIX Web server
File Timestamps
/etc/inid/nfs.client
Apache
lsmod

47. Hangup - restarts a daemon
SIGTERM 15
Ext* File System
SIGHUP 1
df -v

48. Four Ext* _________: Modify - Access - Change - Delete
I/O services
File Timestamps
id
kill (sig -pid)

49. LDAP package that contains the servers and other utilities necessary to configure and run the LDAP server
openldap-servers
/etc/xinetd.d
unlink()
Kernel Layer

50. Device Name that the kernel uses to refer to devices on the system - IE 'sd' for IDE drive - 'fd' for floppy disk - etc
Instance Device Name
telinit -q
id
/etc/nsswitch.conf