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. Device Name that the kernel uses to refer to devices on the system - IE 'sd' for IDE drive - 'fd' for floppy disk - etc
newgroup
useradd -n
Instance Device Name
id

2. Creates a user with default group; if not given - a new group with the user's name will be created
useradd -n
/etc/nsswitch.conf
5 - Multi-user Mode
inetd -t

3. Can be configured to restrict the activities of users by modifying the last entry in the /etc/passwd
Restricted Shell
Device File
Six Superblock Components
Shell

4. Returns system information pertaining to the platform
Kernel
nmbd
uname()
Environment

5. Daemon that is used to configure network services in Solaris
pwconv
Device Names
Kernel Phase
inetd.d

6. Programs similar to GINA in Windows that provides the login prompt
df -k
getty and ttymon
Directory File
Superblock

7. LDAP package that contains the libraries necessary to run the Open LDAP server
/etc/services
Init Phase
Memory Management Unit (MMU)
openldap

8. Surest kill
User Layer
SIGKILL 9
inetd.d
df -h

9. Phase with a sole function of loading the secondary boot program - ufsboot - and executing it
System call
Boot Programs Phase
Trap
inetd.d

10. Phase with a sole function of loading the secondary boot program - ufsboot - and executing it
newgroup
System Call
Boot Programs Phase
Network File System (NFS)

11. Terminal Interrupt via user keypress
sh
Device Names
who -r
SIGINT 2

12. Four Phases of the Solaris Boot Process: _______ - Boot Programs - Kernel - and Init
Boot Prom
Memory Management Unit (MMU)
smbd
Kernel Layer

13. Command to view your swap partition in human readable format
df -h
Boot Prom Phase
df -F ufs -o i
share -F nfs /<path>

14. 4 Kernel Layer Functions: Process creation and termination - ________- file/disk access services - terminal handling services
groupadd
File System Structures
I/O services
Directory File

15. O - Running - R - Can be Executed - (S)leeping - (Z)ombie - T - Stopped
Inode Table of Contents
File Timestamps
modinfo
Process States

16. Command will show your used and free inodes
df -v
df -F ufs -o i
/etc/hosts
prtconf

17. File that specifies machines to use for name resolution
/etc/resolv.conf
sysctl
Symbolic Link - with syntax
free

18. located 1024 bytes from the start of the file system and is 1024 bytes in size
Superblock
init and telinit
Device Driver
uname()

19. Two Servers in openldap-servers: /usr/sbin/slapd and ________
Ext*
/usr/sbin/slurpd
/etc/group
df

20. These are found within the kernel layer at the level closest to the hardware
pwconv
strace
Hardware Interface Modules
id

21. Command used to delete a group
start /sbin/init process
5 - Multi-user Mode
groupdel
Block File

22. LDAP package that contains command line tools for viewing/modifying directories on an LDAP server
openldap-clients
init and telinit
Inode Table of Contents
modinfo

23. Similar to DLLs in Windows that can be built upon and around system calls
Interrupt
Library Function
Shell
share -F nfs /<path>

24. Ordinary file that contains only printable characters
Network File System (NFS)
System call
Text File
/etc/named.conf

25. Command that displays the amount of free and used memory
free
Signals
Boot Prom
ROOT Account

26. These are found within the kernel layer at the level closest to the hardware
Three Types of Signals
Device
Hardware Interface Modules
Device Driver

27. This Layer includes hardware such as CPU - system memory - the terminal - disks - CD-ROM - and NIC
System Call Interface
df -k
/etc/shadow
Hardware Layer

28. Phase where the kernel initializes itself and begins loading modules using ufsboot. Once finished - it unmaps ufsboot
Device File
Group Descriptor Table
Network File System (NFS)
Kernel Phase

29. Syntax to add a path to PATH variable
Shell
PATH=$PATH:/xxx/xxx/bin
ufsboot
Memory Management Unit (MMU)

30. Terminal (CTRL+C) - Administrator ("kill") - Kernel (divide by zero)
share -F nfs /<path>
sysctl
Three Types of Signals
Init Phase

31. Commands that reveals all *nix file systems - including disk space usage and their logical mount points
inetd.d
newgroup
Kernel Layer
df -k

32. Three Device ____________: prtconf - sysdef - dmesg
Memory Management Unit (MMU)
Information Commands
dmesg
free

33. Similar to -k; shows block size for each mounted file system
df -v
Loadable Kernel Modules (LKM)
bash
Inode

34. When a user process executes a system call and begins executing kernel code
User to Kernel Transition Process
groupdel
Init Phase
UNIX "Rings of Protection"

35. Command used on a Linux system to view the disk's physical partitioning scheme
sysctl -w
df -h
fdisk -l
Interrupt

36. Device Name that represents the "full device" pathname for a device - located in the /devices directory
Lightweight Directory Access Protocol (LDAP)
Memory Management Unit (MMU)
nmbd
Physical Device Name

37. Profile that all logins get before using their own ~/.profile
Character File
Environment
.profile
5 - Multi-user Mode

38. Phase where the kernel initializes itself and begins loading modules using ufsboot. Once finished - it unmaps ufsboot
id
Inode
Kernel Phase
lsmod

39. Sysdef parameter that defines the maximum number of processes that will run on the system
Hardware Layer
.profile
max_nprocs
Init Phase

40. Extra permission bit that allows anyone to run a program with the same privileges as its owner or group - denoted by *
groupadd
who -r
id
SUID/SGID

41. Phase that runs self diagnostics and verifying the system's hardware and memory - as well as POST - building the device tree - displaying the system banner - and running bootblk
User to Kernel Transition Process
Run-level Field
dmesg
Boot Prom Phase

42. Device Information Command that displays device config information including hardware - pseudo devices - etc
sysdef
File System
I/O services
Device File

43. Applys changes to /etc/sysctl.conf
Signals
Hardware Layer
I/O services
sysctl -p

44. The hardware device responsible for handling memory accesses requested by the processor
Apache Directory Structure
Shell
/etc/shadow
Memory Management Unit (MMU)

45. Commands used to change your current run-level
init and telinit
System Call Interface
Hardware Layer
sysctl

46. Secondary boot program that locates and load the basic kernel
Hardware Layer
ufsboot
sysdef
Hard Link - with syntax

47. Defines the way files are named - stored - organized - and accessed on a logical volume
/usr/sbin/slurpd
rpcinfo -p
Ext*
File System

48. The core of the operating system that is loaded into memory at system boot; it manages the hardware and performs system services
System Call Interface
Boot Prom Phase
Kernel
/sbin/service

49. Commands used to change your current run-level
Kernel
3 - Multi-User Mode
init and telinit
unlink()

50. Command to view your swap partition
Kernel Phase
df -k
mmap()
telinit -q