Fiber Optic Testing Practice Exam
Questions and answers 2025
True .or .False
Cables .tested .with .an .OTDR .do .not .require .insertion .loss .testing .with .a .source
.and .meter .or .OLTS. .- .ANS✓✓-False
True .or .False
Connectors .at .each .end .of .the .cable .plant .should .not .be .counted .when
.calculating .the .cable .plant .loss. .- .ANS✓✓-False
True .or .False
The .OTDR .should .never .be .used .without .a ."launch .cable" .which .is .also .called
.a ."pulse .suppressor." .- .ANS✓✓-True
Cable .plant .loss .should .be .estimated .during .the .______ .phase.
A. .Design
B. .Installation
C. .Testing
D. .Troubleshooting .- .ANS✓✓-A
The .standard .method .of .testing .installed .multi-mode .cables .in .a .cable .plant .is
.described .in:
A. .FOTP-34
B. .ISO .11801
C. .FOTP-57
D. .OFSTP-14 .- .ANS✓✓-D
What .test .instrument(s) .are .used .for .insertion .loss .testing.
A. .OLTS .or .light .source .and .power .meter
B. .VFL
C. .OTDR .- .ANS✓✓-A
, Multi-mode .graded-index .glass .fiber .optic .cables .are .tested .with .___ .sources .at
.______ .and ._____ .wavelengths.
A. .LED, .650, .850 .nm
B. .LED, .850, .1300 .nm
C. .Laser, .980, .1400 .nm
D. .Laser, .1310, .1550 .nm .- .ANS✓✓-B
What .type .of .source .is .used .for .testing .singlemode .fibers?
A. .LED
B. .VCSEL
C. .Laser .- .ANS✓✓-C
How .many .methods .are .included .in .standards .for .setting .the ."0 .dB' .reference
.for .loss .testing?
A. .One
B. .Two
C. .Three
D. .Four .- .ANS✓✓-C
Which .reference .method .is .required .for .TIA .568?
A. .Once .cable .reference
B. .Two .cable .reference
C. .Three .cable .reference
D. .Any .method .as .long .as .it .is .documented .- .ANS✓✓-D
Reference .cables .must .match .the .________ .of .the .cables .being .tested.
A. .Fiber .size .and .type
B. .Fiber .size .and .connector .type
C. .Connector .type
D. .Fiber .size .and .loss .specification .- .ANS✓✓-B
The .total .loss .of .the .fiber .in .the .cable .plant .is .calculated .by .multiplying .the
.attenuation .coefficient .of .the .fiber .by .the ._________.
A. .Length
B. .Number .of .links
C. .Number .of .connectors
D. .Number .of .splices .- .ANS✓✓-A
The .principle .of .operation .of .OTDRs .is .similar .to ._______.
A. .Power .meters .and .sources
B. .Radar
C. .Mirrors
Questions and answers 2025
True .or .False
Cables .tested .with .an .OTDR .do .not .require .insertion .loss .testing .with .a .source
.and .meter .or .OLTS. .- .ANS✓✓-False
True .or .False
Connectors .at .each .end .of .the .cable .plant .should .not .be .counted .when
.calculating .the .cable .plant .loss. .- .ANS✓✓-False
True .or .False
The .OTDR .should .never .be .used .without .a ."launch .cable" .which .is .also .called
.a ."pulse .suppressor." .- .ANS✓✓-True
Cable .plant .loss .should .be .estimated .during .the .______ .phase.
A. .Design
B. .Installation
C. .Testing
D. .Troubleshooting .- .ANS✓✓-A
The .standard .method .of .testing .installed .multi-mode .cables .in .a .cable .plant .is
.described .in:
A. .FOTP-34
B. .ISO .11801
C. .FOTP-57
D. .OFSTP-14 .- .ANS✓✓-D
What .test .instrument(s) .are .used .for .insertion .loss .testing.
A. .OLTS .or .light .source .and .power .meter
B. .VFL
C. .OTDR .- .ANS✓✓-A
, Multi-mode .graded-index .glass .fiber .optic .cables .are .tested .with .___ .sources .at
.______ .and ._____ .wavelengths.
A. .LED, .650, .850 .nm
B. .LED, .850, .1300 .nm
C. .Laser, .980, .1400 .nm
D. .Laser, .1310, .1550 .nm .- .ANS✓✓-B
What .type .of .source .is .used .for .testing .singlemode .fibers?
A. .LED
B. .VCSEL
C. .Laser .- .ANS✓✓-C
How .many .methods .are .included .in .standards .for .setting .the ."0 .dB' .reference
.for .loss .testing?
A. .One
B. .Two
C. .Three
D. .Four .- .ANS✓✓-C
Which .reference .method .is .required .for .TIA .568?
A. .Once .cable .reference
B. .Two .cable .reference
C. .Three .cable .reference
D. .Any .method .as .long .as .it .is .documented .- .ANS✓✓-D
Reference .cables .must .match .the .________ .of .the .cables .being .tested.
A. .Fiber .size .and .type
B. .Fiber .size .and .connector .type
C. .Connector .type
D. .Fiber .size .and .loss .specification .- .ANS✓✓-B
The .total .loss .of .the .fiber .in .the .cable .plant .is .calculated .by .multiplying .the
.attenuation .coefficient .of .the .fiber .by .the ._________.
A. .Length
B. .Number .of .links
C. .Number .of .connectors
D. .Number .of .splices .- .ANS✓✓-A
The .principle .of .operation .of .OTDRs .is .similar .to ._______.
A. .Power .meters .and .sources
B. .Radar
C. .Mirrors
