Optical Fiber Cabling Media assignment

Question 1

What wavelengths are used with MM fiber? Please select one or more.

A.
1300 nm

B.
1310 nm

C.
1550 nm

D.
850 nm

Answer 1

The correct answers are:
1300 nm,
850 nm

Question 2

What are the typical light sources for MM fiber? Please select one or more.

A.
LED

B.
Halogen

C.
VCSELs

D.
Laser

Answer 2

The correct answers are:
VCSELs,
LED

Question 3

Please match the correct answer to the measurements of optical fiber cable given.

200 m of 50/125 @ 850 nm
Answer 1
1500 of SM inside @ 1310 nm
Answer 2
2800 m of SM outside @ 1550 nm
Answer 3
500 m of 62.5/125 @ 1300 nm
Answer 4

Answer 3

The correct answer is:
200 m of 50/125 @ 850 nm → 0.7 dB,
1500 of SM inside @ 1310 nm → 1.5 dB,
2800 m of SM outside @ 1550 nm → 1.4 dB,
500 m of 62.5/125 @ 1300 nm → 0.75 dB

Question 4

TIA-568-C standard recommends the A-B polarity scenario for duplex patch cords

Select one:

True
False

Answer 4

True

Question 5

What are two advantages of an LC connector over an ST connector?

A.
Dust proof

B.
Wiggle proof

C.
Bigger

D.
Pull proof

Answer 5

The correct answers are: Wiggle proof,
Pull proof

Question 6

Method A for duplex applications, making the transceiver-receiver flip for Position 1 (Tx) to Position 2 (Rx) is required in a patch cord at one end. This is achieved with a A-A patch cord.

Select one:
True
False

Answer 6

The correct answer is ‘True’.

Question 7

What does SFF stand for?

A.
Small Fiber Form

B.
Small Factor Form

C.
Small Form Factor

D.
Singlemode Fiber Find

Answer 7

The correct answer is:
Small Form Factor

Question 8

Please select the appropriate cable to the densities provided
Second highest density
Answer 1
Lowest density
Answer 2
Highest density
Answer 3
Second lowest density
Answer 4

Answer 8

The correct answer is:
Second highest density → Loose-tube,
Lowest density → Breakout,
Highest density → Ribbon,
Second lowest density → Distribution (Tight-buffered)

Question 9

What are the core sizes of multimode fiber? Please select one or more

A.
62.5 µm

B.
9 µm

C.
125 µm

D.
50 µm

Answer 9

The correct answers are:
50 µm,
62.5 µm

Question 10

Please select which multimode has the highest and lowest bandwidth.
Lowest Bandwidth
Answer 1
Highest Bandwidth
Answer 2

Answer 10

You have correctly selected 1.
The correct answer is:
Lowest Bandwidth → OM1,
Highest Bandwidth → OM4

Question 11

What type of optical fiber cable assembly is typically used inside buildings?

A.
Loose-tube

B.
Unlisted communication cable

C.
Tight-buffered

D.
250 pair

Answer 11

The correct answer is:
Tight-buffered

Question 12

An adapter can be used to mate 2 male MPO connectors together.
Select one:
True
False

Answer 12

The correct answer is ‘False’.

Question 13

Which duplex fiber patch cords are considered cross-over type?

A.
Balun

B.
A-to-A

C.
A-to-B

D.
Universal

Answer 13

The correct answer is:
A-to-A

Question 14

Please select the appropriate description for the following MPO adapters.
Type B
Type A

Key-up to key-up,
Key-up to key-down

Answer 14

The correct answer is:
Type B → Key-up to key-up,
Type A → Key-up to key-down

Question 15

A furcation tubing is used to build up the fiber strand’s diameter, to allow direct connectorization.
Select one:
True
False

Answer 15

The correct answer is ‘True’.

Question 16

What type of optical fiber should be used to connect an Horizontal Cross-connect to a Main Cross-connect, 2500 meters apart?

A.
Singlemode

B.
62.5 µm Multimode

C.
50 µm Laser-optimized Multimode

D.
50 µm Multimode

Answer 16

The correct answer is:
Singlemode

Question 17

Select the following to describe fiber position one (1) on a male MPO connector is by viewing the connector face.

A white dot on one side denotes position

Key

Positon 1 is on the

Answer 17

You have correctly selected 2.
The correct answer is:
A white dot on one side denotes position → 1,
Key → up,
Positon 1 is on the → left

Question 18

What is the diameter of the cladding of an optical fiber strand?

A.
900 µm

B.
50 µm

C.
125 µm

D.
250 µm

Answer 18

The correct answer is:
125 µm

Question 19

What are the typical dimensions of the buffer coating protecting the cladding of the fiber strand? Please select one or more.

A.
125 µm

B.
900 µm

C.
200 µm

D.
250 µm

Answer 19

You have correctly selected 1.
The correct answers are:
250 µm,
900 µm

Question 20

What type of optical fiber cable assembly should be used if it is going to be exposed to wide temperature changes?

A.
Tight-buffered

B.
250 pair

C.
Bloomberg

D.
Loose-tube

Answer 20

The correct answer is: Loose-tube

Question 21

The cladding has a higher refractive index than the core.
Select one:
True
False

Answer 21

The correct answer is ‘False’.

Question 22

Which one of the following is not a optical fiber connector.

A.
ST

B.
LC

C.
BNC

D.
SC

E.
MU

Answer 22

The correct answer is:
BNC

Question 23

What is the minimum outside diameter of the coating that is applied over the optical fiber cladding?

A.
62.5 µm

B.
250 µm

C.
900 µm

D.
125 µm

Answer 23

The correct answer is:
250 µm

Question 24

What wavelengths are used with OS1 SM fiber? Please select one or more.

A.
1310 nm

B.
1300 nm

C.
850 nm

D.
1550 nm

Answer 24

The correct answers are:
1550 nm,
1310 nm

Question 25

Please match the cable description to the cable type.

• Contains multiple 900 µm tight-buffered fiber strands
• Has a strand coating of 900 micrometers
• Contains multiple, jacketed , single-strand cables
• Patch or Equipment Cord

Distribution, Zip cord, Breakout, Tight Buffered

Answer 25

The correct answer is:
Contains multiple 900 µm tight-buffered fiber strands → Distribution,
Contains multiple, jacketed , single-strand cables → Breakout,
Patch or Equipment Cord → Zip cord,
Has a strand coating of 900 micrometers → Tight Buffered