WGU D386 Hardware and Operating Systems Essentials
Exam Questions With Correct Answers
operating |system
system |software |that |acts |as |a |"go-between", |allowing |computer |hardware |and |other |software
|to |communicate |with |each |other
What |is |the |purpose |of |a |computer |operating |system?
It |functions |as |a |resource |manager.
Which |kind |of |software |are |Mac |OS |X |and |Windows |10 |programs?
Operating |system |(OS)
Which |operating |system |allows |for |its |source |code |to |be |modified |and |redistributed?
Android |is |an |open-source |mobile |operating |system; |therefore, |source |code |is |available, |and |
anyone |can |modify |and |redistribute |it.
Cloud-based |operating |systems
primarily |manages |the |operation |of |one |or |more |virtual |machines |within |a |virtualized |
environment.
,What |is |a |feature |of |cloud-based |operating |systems?
They |are |primarily |stateless.
System |calls
unique |set |of |services |provided |by |operating |systems |for |use |by |applications |and |have |to |be |
accounted |for |by |different |operating |systems.
Application |Programming |Interface |(API)
A |set |of |software |routines |that |allows |one |software |system |to |work |with |another.
Why |do |applications |designed |to |work |on |one |operating |system |not |work |on |a |different |
operating |system?
Unique |system |calls
single‐user |systems
multitasking |systems, |found |in |laptops |and |workstations
mobile |device |operating |systems
provides |single-user |and |multitasking |at |a |scaled-down |level |due |to |power |and |memory |
limitations
,Basic |resources |OS |organizes |before |users |can |give |a |computer |instructions:
1. |Processor
2. |Storage
3. |Devices
4. |Input/Output
5.Memory
Mainframe |Systems
large, |fast, |and |powerful, |used |for |high |transaction |processing |and |complex |computations; |
used |by |corporations |and |government |agencies
network |server |systems
designed |and |named |for |a |specific |purpose |such |as |database |servers, |web |servers, |and |print |
servers
real‐time |systems
designed |to |direct |CPU |access |immediately |when |needed |or |required
Embedded |control |systems
specialized |operating |systems |designed |to |control |a |single |piece |of |equipment |or |machinery
distributed |systems
, geared |toward |allocating |process |power, |programs, |files, |and |databases |to |network |users
Application |Software
software |program |that |helps |you |use |the |computer |to |do |particular |tasks
Drivers
instructs |a |particular |OS |on |how |to |access |a |piece |of |hardware
version
particular |revision |of |a |piece |of |software, |normally |described |by |a |number |that |tells |you |how |
new |the |product |is |in |relation |to |other |versions |of |the |product
source |code
actual |code |that |defines |how |a |piece |of |software |works
Open |Source
Software |that |is |created |for |free |use |by |everyone
closed |source
source |code |that |is |highly |protected |and |only |available |to |trusted |employees |and |carefully |
vetted |contractors
Exam Questions With Correct Answers
operating |system
system |software |that |acts |as |a |"go-between", |allowing |computer |hardware |and |other |software
|to |communicate |with |each |other
What |is |the |purpose |of |a |computer |operating |system?
It |functions |as |a |resource |manager.
Which |kind |of |software |are |Mac |OS |X |and |Windows |10 |programs?
Operating |system |(OS)
Which |operating |system |allows |for |its |source |code |to |be |modified |and |redistributed?
Android |is |an |open-source |mobile |operating |system; |therefore, |source |code |is |available, |and |
anyone |can |modify |and |redistribute |it.
Cloud-based |operating |systems
primarily |manages |the |operation |of |one |or |more |virtual |machines |within |a |virtualized |
environment.
,What |is |a |feature |of |cloud-based |operating |systems?
They |are |primarily |stateless.
System |calls
unique |set |of |services |provided |by |operating |systems |for |use |by |applications |and |have |to |be |
accounted |for |by |different |operating |systems.
Application |Programming |Interface |(API)
A |set |of |software |routines |that |allows |one |software |system |to |work |with |another.
Why |do |applications |designed |to |work |on |one |operating |system |not |work |on |a |different |
operating |system?
Unique |system |calls
single‐user |systems
multitasking |systems, |found |in |laptops |and |workstations
mobile |device |operating |systems
provides |single-user |and |multitasking |at |a |scaled-down |level |due |to |power |and |memory |
limitations
,Basic |resources |OS |organizes |before |users |can |give |a |computer |instructions:
1. |Processor
2. |Storage
3. |Devices
4. |Input/Output
5.Memory
Mainframe |Systems
large, |fast, |and |powerful, |used |for |high |transaction |processing |and |complex |computations; |
used |by |corporations |and |government |agencies
network |server |systems
designed |and |named |for |a |specific |purpose |such |as |database |servers, |web |servers, |and |print |
servers
real‐time |systems
designed |to |direct |CPU |access |immediately |when |needed |or |required
Embedded |control |systems
specialized |operating |systems |designed |to |control |a |single |piece |of |equipment |or |machinery
distributed |systems
, geared |toward |allocating |process |power, |programs, |files, |and |databases |to |network |users
Application |Software
software |program |that |helps |you |use |the |computer |to |do |particular |tasks
Drivers
instructs |a |particular |OS |on |how |to |access |a |piece |of |hardware
version
particular |revision |of |a |piece |of |software, |normally |described |by |a |number |that |tells |you |how |
new |the |product |is |in |relation |to |other |versions |of |the |product
source |code
actual |code |that |defines |how |a |piece |of |software |works
Open |Source
Software |that |is |created |for |free |use |by |everyone
closed |source
source |code |that |is |highly |protected |and |only |available |to |trusted |employees |and |carefully |
vetted |contractors
