FOA CFOT Certification Exam v11 questions
with correct answers
A |fiber |optic |inspection |microscope |can |increase |the |danger |of |high |powered |light |sources |by |
focusing |the |light |coming |out |of |a |fiber |into |your |eye. |True |or |False? |- |VERIFIED |ANSWER✔✔-
True
A |fiber |optic |power |meter |measures |absolute |power |in |dBM |(dB |referenced |to |1 |mw) |and, |when |
used |with |a |light |source, |can |measure |insertion |loss |expressed |in |dB. |True |or |False? |- |VERIFIED |
ANSWER✔✔-True
When |we |say |62.5/125 |fiber, |what |does |"62.5" |mean? |- |VERIFIED |ANSWER✔✔-core |size, |the |
diameter |in |microns
When |we |say |50/125 |fiber, |what |does |"125" |mean? |- |VERIFIED |ANSWER✔✔-cladding |size, |the |
diameter |in |microns
OM3 |and |OM4 |multimode |fiber |with |a |50/125 |micron |core |are |now |a |popular |option |in |premises |
cabling |systems |because |they |_____. |- |VERIFIED |ANSWER✔✔-Are |"laser |optimized" |which |
gives |more |distance |capability |with |gigabit |networks |using |laser |sources
In-multimode |fiber, |the |attenuation |(reduction |in |optical |power) |of |the |fiber |is |_____ |at |850 |nm |
than |at |1300 |nm. |- |VERIFIED |ANSWER✔✔-Higher
Which |of |the |following |represents |a |singlemode |(smaller |core |size) |fiber |size? |- |VERIFIED |
ANSWER✔✔-9/125 |micron
Singlemode |fiber |has |_____ |bandwidth |than |multimode |fiber. |- |VERIFIED |ANSWER✔✔-greater
Most |plastic |optical |fibers |are |_____. |- |VERIFIED |ANSWER✔✔-large |core |step-index
When |you |strip |singlemode |or |graded |index |multimode |mode |glass |fiber, |you |are |removing |the |
____. |- |VERIFIED |ANSWER✔✔-Primary |buffer |coating
The |proper |method |of |pulling |optical |fiber |cables |is |to |attach |the |pull |wire |or |tape |to |the |____ |of |the |
cable. |- |VERIFIED |ANSWER✔✔-Strength |members
According |to |the |references, |hybrid |cables |are |cables |that |contain |____. |- |VERIFIED |
ANSWER✔✔-Both |singelmode |and |multimode |optical |fibers
What |type |of |fiber |cable |design |allows |for |large |numbers |of |fibers |with |ultra-high |density, |small |
size |(diameter) |and |lower |cost? |- |VERIFIED |ANSWER✔✔-ribbon
, According |to |the |references, |composite |cables |refer |to |cables |that |contain |____> |- |VERIFIED |
ANSWER✔✔-both |optical |fibers |and |copper |conductors
Which |optical |fiber |cables |must |be |grounded? |- |VERIFIED |ANSWER✔✔-all |cables |that |contain |
metallic |elements
Fiber |optic |cable |for |use |inside |a |building |must |_______. |- |VERIFIED |ANSWER✔✔-Be |rated |to |
meet |the |requirements |of |local |building |and |fire |codes
Optical |fiber |cable |with |a |orange |colored |jacket |generally |indicates |the |cable |contains |_____. |- |
VERIFIED |ANSWER✔✔-Multimode |fiber
Premises |cable |jackets |are |usually |color-coded |in |what |color |to |indicate |singlemode |fiber? |- |
VERIFIED |ANSWER✔✔-Yellow
Premises |cable |jackets |are |usually |color-coded |in |what |color |to |indicate |laser-optimized |50/125 |
OM3 |or |OM4 |fiber? |- |VERIFIED |ANSWER✔✔-Aqua
When |pulling |long |lengths |of |cable |in |conduit |or |innerduct, |you |may |need |to |____. |- |VERIFIED |
ANSWER✔✔-Any |or |all |of |these |as |appropriate |(Pull |form |the |center |to |the |ends, |Use |a |
breakaway |swivel |or |monitor |tension, |Lubricate |the |cable)
In |a |loose |tube |cable, |a |gel |or |absorbent |tape |or |powder |is |normally |used |_____. |- |VERIFIED |
ANSWER✔✔-To |prevent |water |from |entering |the |cable
Which |type |of |cable |is |best |suited |for |indoor |installation |when |fibers |ar |to |be |directly |terminated |
inside |a |patch |panel |with |adhesive/polish |or |prepolished |splice |connectors? |- |VERIFIED |
ANSWER✔✔-tight |buffer |distribution |cable
What |type |of |cable |may |require |installation |of |a |breakout |kit |(also |called |a |furcation |or |fan |out |kit) |
for |termination? |- |VERIFIED |ANSWER✔✔-loose |tube |(loose |buffer) |cable
When |pulling |cables, |the |minimum |bend |radius |under |tension |is |generally |specified |as |______. |- |
VERIFIED |ANSWER✔✔-20 |times |the |cable |diameter
Cable |ties |used |on |fiber |optic |cables |____. |- |VERIFIED |ANSWER✔✔-Can |harm |cables |if |too |
tight, |so |they |should |be |hand-tightened.
Fiber |optic |joints |(connectors |or |splices) |should |have |____. |- |VERIFIED |ANSWER✔✔-low |loss, |
minimal |reflectance |and |high |mechanical |strength
To |reduce |_____ |as |well |as |loss, |the |end |of |a |connector |ferrule |is |polished |to |a |PC |(physical |contact)
|finish. |- |VERIFIED |ANSWER✔✔-Reflectance
Factory |terminations, |such |as |used |for |making |patchcords, |generally |use |what |method |of |attaching |
the |connector? |- |VERIFIED |ANSWER✔✔-Epoxy/polish
with correct answers
A |fiber |optic |inspection |microscope |can |increase |the |danger |of |high |powered |light |sources |by |
focusing |the |light |coming |out |of |a |fiber |into |your |eye. |True |or |False? |- |VERIFIED |ANSWER✔✔-
True
A |fiber |optic |power |meter |measures |absolute |power |in |dBM |(dB |referenced |to |1 |mw) |and, |when |
used |with |a |light |source, |can |measure |insertion |loss |expressed |in |dB. |True |or |False? |- |VERIFIED |
ANSWER✔✔-True
When |we |say |62.5/125 |fiber, |what |does |"62.5" |mean? |- |VERIFIED |ANSWER✔✔-core |size, |the |
diameter |in |microns
When |we |say |50/125 |fiber, |what |does |"125" |mean? |- |VERIFIED |ANSWER✔✔-cladding |size, |the |
diameter |in |microns
OM3 |and |OM4 |multimode |fiber |with |a |50/125 |micron |core |are |now |a |popular |option |in |premises |
cabling |systems |because |they |_____. |- |VERIFIED |ANSWER✔✔-Are |"laser |optimized" |which |
gives |more |distance |capability |with |gigabit |networks |using |laser |sources
In-multimode |fiber, |the |attenuation |(reduction |in |optical |power) |of |the |fiber |is |_____ |at |850 |nm |
than |at |1300 |nm. |- |VERIFIED |ANSWER✔✔-Higher
Which |of |the |following |represents |a |singlemode |(smaller |core |size) |fiber |size? |- |VERIFIED |
ANSWER✔✔-9/125 |micron
Singlemode |fiber |has |_____ |bandwidth |than |multimode |fiber. |- |VERIFIED |ANSWER✔✔-greater
Most |plastic |optical |fibers |are |_____. |- |VERIFIED |ANSWER✔✔-large |core |step-index
When |you |strip |singlemode |or |graded |index |multimode |mode |glass |fiber, |you |are |removing |the |
____. |- |VERIFIED |ANSWER✔✔-Primary |buffer |coating
The |proper |method |of |pulling |optical |fiber |cables |is |to |attach |the |pull |wire |or |tape |to |the |____ |of |the |
cable. |- |VERIFIED |ANSWER✔✔-Strength |members
According |to |the |references, |hybrid |cables |are |cables |that |contain |____. |- |VERIFIED |
ANSWER✔✔-Both |singelmode |and |multimode |optical |fibers
What |type |of |fiber |cable |design |allows |for |large |numbers |of |fibers |with |ultra-high |density, |small |
size |(diameter) |and |lower |cost? |- |VERIFIED |ANSWER✔✔-ribbon
, According |to |the |references, |composite |cables |refer |to |cables |that |contain |____> |- |VERIFIED |
ANSWER✔✔-both |optical |fibers |and |copper |conductors
Which |optical |fiber |cables |must |be |grounded? |- |VERIFIED |ANSWER✔✔-all |cables |that |contain |
metallic |elements
Fiber |optic |cable |for |use |inside |a |building |must |_______. |- |VERIFIED |ANSWER✔✔-Be |rated |to |
meet |the |requirements |of |local |building |and |fire |codes
Optical |fiber |cable |with |a |orange |colored |jacket |generally |indicates |the |cable |contains |_____. |- |
VERIFIED |ANSWER✔✔-Multimode |fiber
Premises |cable |jackets |are |usually |color-coded |in |what |color |to |indicate |singlemode |fiber? |- |
VERIFIED |ANSWER✔✔-Yellow
Premises |cable |jackets |are |usually |color-coded |in |what |color |to |indicate |laser-optimized |50/125 |
OM3 |or |OM4 |fiber? |- |VERIFIED |ANSWER✔✔-Aqua
When |pulling |long |lengths |of |cable |in |conduit |or |innerduct, |you |may |need |to |____. |- |VERIFIED |
ANSWER✔✔-Any |or |all |of |these |as |appropriate |(Pull |form |the |center |to |the |ends, |Use |a |
breakaway |swivel |or |monitor |tension, |Lubricate |the |cable)
In |a |loose |tube |cable, |a |gel |or |absorbent |tape |or |powder |is |normally |used |_____. |- |VERIFIED |
ANSWER✔✔-To |prevent |water |from |entering |the |cable
Which |type |of |cable |is |best |suited |for |indoor |installation |when |fibers |ar |to |be |directly |terminated |
inside |a |patch |panel |with |adhesive/polish |or |prepolished |splice |connectors? |- |VERIFIED |
ANSWER✔✔-tight |buffer |distribution |cable
What |type |of |cable |may |require |installation |of |a |breakout |kit |(also |called |a |furcation |or |fan |out |kit) |
for |termination? |- |VERIFIED |ANSWER✔✔-loose |tube |(loose |buffer) |cable
When |pulling |cables, |the |minimum |bend |radius |under |tension |is |generally |specified |as |______. |- |
VERIFIED |ANSWER✔✔-20 |times |the |cable |diameter
Cable |ties |used |on |fiber |optic |cables |____. |- |VERIFIED |ANSWER✔✔-Can |harm |cables |if |too |
tight, |so |they |should |be |hand-tightened.
Fiber |optic |joints |(connectors |or |splices) |should |have |____. |- |VERIFIED |ANSWER✔✔-low |loss, |
minimal |reflectance |and |high |mechanical |strength
To |reduce |_____ |as |well |as |loss, |the |end |of |a |connector |ferrule |is |polished |to |a |PC |(physical |contact)
|finish. |- |VERIFIED |ANSWER✔✔-Reflectance
Factory |terminations, |such |as |used |for |making |patchcords, |generally |use |what |method |of |attaching |
the |connector? |- |VERIFIED |ANSWER✔✔-Epoxy/polish
