SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Unix Operating System
Start Test
Study First
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. Default shell for Solaris
Init Phase
sh
'#'
System Call Interface
2. Command that logs information to the Solaris syslog - specifically to the /var/adm/messages
Boot Programs Phase
inetd -t
useradd -n
sysdef
3. Total number of inodes and blocks - block size - number of blocks/inodes per group and number or reserved blocks before the first block group
Six Superblock Components
Signals
Kernel Phase
showmount -e <ip address>
4. 6 Hardware Interface Module Functions: ________ - memory management - interrupt handling - low level device control - disk system management - Process synchronization & IPC
uname()
init and telinit
sched PID of '0' -
Process scheduling
5. Frees up memory when a process runs short of memory
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
6. Phase where the kernel initializes itself and begins loading modules using ufsboot. Once finished - it unmaps ufsboot
/etc/apache/httpd.conf
Run-level Field
Kernel Phase
unlink()
7. Daemon that is used for viewing network services in Linux - has more customization than the Solaris counterpart
File System Structures
Apache Document Root
Boot-up
/etc/xinetd.d
8. Command used to change parameters normally set with useradd
telinit -q
usermod
Loadable Kernel Modules (LKM)
SUID/SGID
9. This Layer consists of user processes that are running - including Shells - UNIX commands - utility programs - and user application programs
openldap
User Layer
File System
/etc/passwd
10. Three Types of _________: Physical - Instance - and Logical
System call
Device Names
Logical Device Name
Interrupt
11. Loopback interface in ifconfig
lo0
Device
Lightweight Directory Access Protocol (LDAP)
Network File System (NFS)
12. Four Fields of /etc/inittab: Label Name - __________ - Action - Command
Run-level Field
Init Phase
init and telinit
SIGHUP 1
13. Two Forms of Apache: __________ and Source (source code)
Binary (already built/compiled)
Text File
Trap
Hardware Address Translation (HAT)
14. Most commonly used file system based on Unix File System
newgroup
Ext* File System
UNIX "Rings of Protection"
showmount -e <ip address>
15. Device Information Command that displays system diagnostic messages and a list of attached devices
Apache Directory Structure
3 - Multi-User Mode
before /etc/profile
dmesg
16. Two Ordinary File Types: Text and ______
Binary
Apache Server Root
Boot Programs Phase
SIGHUP 1
17. Command used to view system calls accessed during the execution of a command on Linux systems
Kernel Layer
strace
before /etc/profile
Process States
18. Presents each user with a prompt - executes user commands - and supports a custom environment for each user
Three Types of Signals
openldap-servers
Shell
Boot-up
19. Command to view your swap partition
SIGINT 2
User Layer
usermod
df -k
20. Allows a device driver to be linked into and removed from the kernel while it is running
Loadable Kernel Modules (LKM)
/etc/shadow
Superblock
Device File
21. The way used in LDAP to describe the format and attributes of data in the server
bash
Schema
share -F nfs /<path>
Init Phase
22. Similar to -k; shows block size for each mounted file system
df -v
Inode
Device File
Superblock
23. Used by the cd Command when no argument follows
Apache Directory Structure
/sbin/service
Process scheduling
HOME Vaiable
24. Used to describe the layout of block groups
Apache Error Log
Hardware Interface Modules
Group Descriptor Table
Shell
25. LDAP package that contains the servers and other utilities necessary to configure and run the LDAP server
Boot Prom Phase
File System
openldap-servers
Device Names
26. The command to report file system disk space usage
df
Kernel Layer
ufsboot
File Timestamps
27. Default termination signal
Process scheduling
/etc/inetd.conf
Boot Prom Phase
SIGTERM 15
28. Default Run Level for Linux
5 - Multi-user Mode
/etc/init.d
/etc/nsswitch.conf
Character File
29. Two Ways to Stop Services in Linux: Editing the _______ service file - and using the chkconfig command
Environment
df -v
Boot Programs Phase
/etc/xinetd.d
30. File that contains information on the user's password and data - including encrypted password - min/max days of password change - inactivity timeframe - etc
share -F nfs /<path>
ufsboot
Process States
/etc/shadow
31. 'K' and 'S' in rc scripts: K is Kill - S is _______
nmbd
Spawned
SIGTERM 15
smbd
32. Phase where the kernel initializes itself and begins loading modules using ufsboot. Once finished - it unmaps ufsboot
prtconf
openldap
Kernel Phase
Network File System (NFS)
33. File that inetd daemon gets it's instructions from - maintains a file format that is the same across all platforms
telinit -q
/etc/inetd.conf
Device File
useradd -n
34. Four Ext* _________: Modify - Access - Change - Delete
Data Block
Apache Server Root
File Timestamps
5 - Multi-user Mode
35. Contains a list of entries for each user; includes a password placeholder ('x') - UID/GID - home directory - and default shell
ufsboot
SIGTERM 15
Boot Prom Phase
/etc/passwd
36. 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
Directory Entry
openldap
Kernel Layer
lo0
37. LDAP package that contains the libraries necessary to run the Open LDAP server
openldap
sysdef
/etc/hosts
Kernel Layer
38. Software interrupt that's processed immediately that's generated by a currently running process
Trap
lsmod
openldap-clients
Instance Device Name
39. Three Steps of Kernel Phase: Create a user process - __________ - and starts other processes by reading /etc/inittab
/etc/xinetd.d
Restricted Shell
SIGQUIT 3
start /sbin/init process
40. Terminal Interrupt via user keypress
'#'
Loadable Kernel Modules (LKM)
SIGINT 2
smbd
41. Programs similar to GINA in Windows that provides the login prompt
getty and ttymon
df -k
Apache
/etc/inetd.conf
42. Command to view your swap partition in human readable format
Directory File
Physical Device Name
Kernel Layer
df -h
43. Command that shows disk space usage and logical mount points in a human readable format
Process scheduling
Network Information Service Plus (NIS+)
telinit -q
df -h
44. The web server widely used in the public domain that was based off of a UNIX Web server
Apache
usermod
User Layer
Binary File
45. Device Information Command that displays system config info including total memory and device configuration
prtconf
Six Superblock Components
Hardware Interface Modules
rpcinfo -p
46. Similar to DLLs in Windows that can be built upon and around system calls
unlink()
Binary
Berkeley Internet Name Daemon (BIND)
Library Function
47. Creates a user with default group; if not given - a new group with the user's name will be created
Binary (already built/compiled)
useradd -n
Binary
truss
48. System Calls: fork() - creates a child process - wait() - exit() - __________ - execl() - execlp() - execv() - execvp()
modinfo
df -F ufs -o i
kill (sig -pid)
df -k
49. Ordinary file that contains both printable and non-printable characters - ex - most UNIX executables
3 - Multi-User Mode
/etc/nsswitch.conf
Apache Directory Structure
Binary File
50. The core of the operating system that is loaded into memory at system boot; it manages the hardware and performs system services
Loadable Kernel Modules (LKM)
touch -m/-a
Trap
Kernel