RCDD Chapter 5

1. Singlemode optical fiber should be considered to support extended distances of high-speed applications.

True

False

2. Sleeves or slots must not obstruct wall-terminationg space.

True

False

3. The two recommended optical multimode fiber cables are graded-index optical fiber with a nominal 62.5/125 um or 50/125 um core/cladding diameter.

True

False

4. Heavy cable that is improperly supported can cause what?

Broken optical fibers

Stretching of copper conductors

Slippage between the cable pairs and the sheath

All the above

5. You should place ties approximately 1 m (3.28ft ) apart with a minimum of three ties per floor.

True

False

6. In multistory buildings you ________ vertically align TRs whenever possible?

Shouldn't

Should

7. When choosing transmission media what factors should you consider?

Flexibility of the medium with respect to supported services

Required useful life of backbone cabling

Site size and user population

All the above

8. For a multipair backbone balanced twisted-pair cable what is the Category and Class of the cable when it is specified up to 16 megahertz?

Category 6/Class E

Category 5e/Class D

Category 3/Class C

Category 7/Class F

9. What is the Class and Category of a cable specified up to 100 MHz

Category 7/Class F

Category 3/Class C

Category 6/Class E

Category 5e/Class D

10. Vertically aligned TRs with connecting sleeves or slots are the most common type of backbone pathway.

True

False

11. Nonconductive optical fiber plenum cable = what fiber cable marking?

OFNP

OFCP

OFNR

OFCR

OFN,OFNG

12. BALANCED TWISTED-PAIR CABLE MARKINGS FOR COMMUNICATIONS RISER CABLE ARE?

CMX, LIMITED USE

CMP

CM, CMG

CMUC

CMR

13. BALANCED TWISTED-PAIR CABLE MARKINGS FOR COMMUNICATIONS UNDERCARPET CABLE ARE?

CMP

CMR

CM, CMG

CMX, LIMITED USE

CMUC

14. The location and configuration of hte slots shall be approved by a structural engineer.

True

False

15. BALANCED TWISTED-PAIR CABLE MARKINGS FOR COMMUNICATIONS LIMITED USE CABLE ARE?

CMUC

CMX, LIMITED USE

CMP

CM, CMG

CMR

16. The choice of transmission media may depend upon the application. What are the factors to be considered ?

Flexibility of the medium with respect to supported services

Required useful lime of the backbone cabling

Site size and user population

All the above

17. A TR is an enclosed architectural space for housing what?

Telecommunications equipment

Printers

Cable terminations

Generators

Cross-connect cabling

Submit

18. Singlemode fiber cable has a zero-dispersion wavelength around what?

1300

1310

500

1315

19. When necessary you my place backbone cable pathways in elevator shafts.

True

False

20. Any direct-baried optical fiber cable also should have a layer of steel armoring for rodent protection.

True

False

21. What are the basic methods to terminate optical fiber cables?

Pigtail splicing

Field connectorizing

Installation of preconnectorized assemblies

All the above

22. BALANCED TWISTED-PAIR CABLE MARKINGS FOR COMMUNICATIONS PLENUM CABLE ARE ?

CMP

CMR

CM, CMG

CMX LIMITED USE

CMUC

23. A TE is a case or housing for telecommunications equipment, cable terminations, and cross-connect cabling.

True

False

24. Indoor hardware is more varied than outdoor hardware.

True

False

25. A design for a one-level hierarchical star campus backbone would link all the buildings to the?

ICs (BD)

HCs (FD)

MC (CD)

26. When the number of sleeves or the area of the pathway requires more than one row of sleeves, the designers should restrict the number of rows to ________whereever practicable?

Three

Four

Two

One

27. Insert cable ties (usually 1.25 mm (.049 in) steel) to secure backbone cable through the layers fo the strand before overall strand tensioning.

True

False

28. OS1 fiber classification is what type of optical fiber?

62.5/125 um Multimode

50/125 um 850nm laser

50/125 um Multimode

Singlemode

29. Conductive optical fiber cable = what cable markings

OFCP

OFNR

OFCR

OFN, OFNG

OFC, OFCG

30. What are the two types of buffering mechanisms for optical fiber cable?

Tight buffered (indoors 900um)

Tight tube (indoors 900um)

Loose Tube (Outdoors 250um)

Loose buffered (indoors 250um)

Submit

31. Optical fiber cable for outdoor use typically contains a water-blocking compound for water resistance as well as well as for allowing some expansion and contraction with temperature changes. What type of cable is this?

Tight Buffered

Loose-Tube

Singlemode

Multimode

32. A backbone system consists of: cable pathways, ER's, and TR's. What are some of the other components?

TE's

EF's

Transmission media

Miscellaneous

All the above

33. The size of the pathway using slots should be one slot sized at for up to _____ of usable floor space served by that backbone system?

.46 m sq (60 in sq)/4000m sq (40000 ft sq)

.56 m sq (70 in sq)/5000m sq (50000 ft sq)

.26 m sq (30 in sq)/2000m sq (20000 ft sq)

.36 m sq (40 in sq)/3000 m sq (30000 ft sq)

34. The slot area should be increased by .46m sq (60ft sq) with each 4000 m sq (40000 ft sq) increase in usable floor space served by that backbone.

True

False

35. The number of cables that can be installed in a condit can be limited by the allowed maximum pullin tension of the cables.

True

False

36. In multiplexed transmission, multiplexing equipment in TRs and ERs combines signals from many end points for transmission over __________ strands of optical fiber?

4

6

12

2

8

37. Nonconductive optical fiber riser cable = what cable marking?

OFNP

OFCP

OFNR

OFCR

OFN,OFNG

38. BALANCED TWISTED-PAIR CABLE MARKINGS FOR COMMUNICATIONS CABLE ARE?

CMP

CMUC

CMX, LIMITED USE

CM, CMG

CMR

39. What is the backbone length and data rate for building backbone (OM3 fiber)

550m (1804 ft) 1 Gb/s

300 m (984 ft) 10 Gb/s

2000 m (6560 ft) 10 Gb/s

300 m (984 ft) 1 Gb/s

2 km (1.2 mi) 155 Mb/s

40. What is the backbone length and data rate for campus/building backbone (OS1 fiber)

2 km (1.2 mi) 155 Mb/s

2000 m (6560 ft) 10 Gb/s

300 m (984 ft) 1 Gb/s

550m (1804 ft) 1 Gb/s

300 m (984 ft) 10 Gb/s

41. Conductive optical fiber plenum cable = what fiber cable marking

OFNP

OFCP

OFNR

OFCR

OFN, OFNG

42. Nonconductive optical fiber cable = what cable markings?

OFNP

OFCP

OFNR

OFCR

OFN, OFNG

43. If the desired end equipment is not equipped with the connector chosen for the cabling system, use ________ cords to connect the end equipment to the patch panel.

SC

FC

SFF

Hybrid

ST

44. You should avoid direct connections between HCs (FDs)

True

False

45. Cable manufactured with fiberglass rods or aramid yarn are known as what?

Singlemode cables

Multimode cables

All-dielectric cables

Tight-buffered cables

Loose-tube cables

46. An optical fiber pigtail is an optical fiber cable that is:

Factory-connectorized on one end with an optical fiber connector

Orange

Yellow

Unterminated at the other end.

Submit

47. Rack-mounted hardware is instlled in standard _ or _ racks or cabinets?

19 in or 24 in

18 in or 23 in

19 in or 23 in

19 in or 26 in

48. Multimode optical fiber is not generally used for campus or building applicaions due to the inability to use cost-effective transceivers.

True

False

49. Slots are typically located flush against the wall within a space, and shoud be designed at a depth (the demension perpendicular to the wall) of what?

200-800 mm (8-32in)

152-610 mm (6-24 in)

100-200 mm (4-8in)

172-610 mm (7-24in)

50. Where large, heavy, balanced twisted-pair backbone cables are used (1200 -pair copper), clamp the cable to a ________ suspended between the highest floor of the building and the basement.

Conduit

Ladder rack

Support strand

Equipment rack

51. WHAT IS THE PERMITTED SUBSTITUTIONS FOR CMX CABLE TYPE?

CMP, CMR

CMP, CMR, CM, CMG

52. A backbone star topology should have no more than _____________levels of cross-connection?

3

2

1

4

5

53. WHAT IS THE PERMITTED SUBSTITUTIONS FOR CMR CABLE TYPE?

CMP, CMR

CMP, CMR, CM, CMG

54. The quantity of pathways using 100 mm (4 trade size) conduits or sleeves should be four sleeves or conduits plus on additional sleever or conduit per what?

1000 m sq (1000ft sp)

4000m sq (4000ft sq)

3000m sq (3000ft sq)

2000m sq (2000ft sq)

55. The length of the equipment cable used to connect telecommunications equipment directly to the MC (CD or IC (BD) should not exceed what?

21 m (71 ft)

10 m (33 ft)

30 m (98 ft)

95 M (295 ft)

56. A TR or TE is the point where the backbone cabing interfaces to what?

Equipment cord

Patch cord

Cross-connections

Telecommunication outlet connectors

Horizontal cabling

57. Bridge and Taps are usually permitted as part of the building backbone cabling.

True

False

58. Connections between any two HCs (FDs) shoud not pass through more than ________cross-connections?

1

3

4

2

5

59. What are the backbone lengths and Data rates for Campus backbone (OM1 fiber)

550m (1804 ft) 1 Gb/s

300 m (984 ft) 1 Gb/s

2 km (1.2 mi) 155 Mb/s

300 m (984 ft) 10 Gb/s

2000 m (6560 ft) 10 Gb/s

60. Slots should have a minimum _____________high curb?

25mm (1in)

50mm (2in)

75mm (3in)

100mm (4in)

61. The most common application for optical fiber backbone cabling is multiplexed transmission.

False

True

62. Nonconductive backbone optical fiber cables shall have a minimum bend radius of _ times the cable's outside diameter when under no load and _ times the cable's outside diameter when being pulled.

5,10

10,15

6,12

2,3

63. OPTICAL FIBER CABLE SUBSTITUTIONS FOR OFC, OFCG ARE?

OFNP

OFNR, OFNP

OFNG, OFN, OFCR, OFNR, OFCP, OFNP

OFNR, OFNP

64. Often the most cost-effective transmission medium for data systems is?

Optical fiber

Balanced twist pair

Coaxial cable

65. What is the Backbone cable length for voice systems?

800m (2625ft)

100m (328ft)

90m (295ft)

900m (2954ft)

850m (2788ft)

66. What are the backbone lingths and data rates for Campus backbones (OM2 fiber)

2000 m (6560 ft) 10 Gb/s

2 km (1.2 mi) 155 Mb/s

300 m (984 ft) 1 Gb/s

550m (1804 ft) 1 Gb/s

300 m (984 ft) 10 Gb/s

67. Conductive backbone optical fiber cables shall have a minimum bend radius of times the cable's outside diameter when under no load and times the cable's outside diameter when being pulled.

10,15

5,10

10,30

10,20

68. Connecting the outlying buidings in a physical ring are highly recommended?

True

False

69. The typical design for a conduit system that provides physical ring topology would dedicate some of the optical fibers to a and some of the optical fibers to a __?

Ring,Star

Bus,Ring

Bus,Star

Hierarchical star, Ring

70. Sleeves should extend a minimum of ___________ above the floor level?

75mm (3in)

50mm (2in)

25mm (1in)

100mm (4in)

71. The recommended cable types for backbone systems are?

65 ohm coaxial

100 ohm balanced twisted-pair

Simglemode optical fiber

62.5/125 and 50/125 um multimode optical fiber.

75 ohm coaxial

Submit

72. OPTICAL FIBER CABLE SUBSTITUTIONS FOR OFNP ARE ?

OFNP

OFNR, OFCP, OFNP

OFNR, OFNP

NONE

73. Backbone and horizontal premises cabling must be installed in a pair-wise crossover orientation such that:

Odd-numbered optical fiber strands are Postition A at one end and Position B at the other end.

Odd-numbered optical fiber strands are Postition B at one end and Position A at the other end.

Even-numbered optical fiber strands are Position A at one end and Position B at the other end.

Even-numbered optical fiber strands are Position B at one end and Position A athe other end.

Submit

74. What is the backbone length and data rate for Building backbone (OM2 fiber)

550m (1804 ft) 1 Gb/s

2 km (1.2 mi) 155 Mb/s

2000 m (6560 ft) 10 Gb/s

300 m (984 ft) 1 Gb/s

300 m (984 ft) 10 Gb/s

75. The recommended balanced twisted-pair cable for building backbone cosists of 24 AWG (0.51 mm .020 in) or up to 22 AWG (.64 mm .025in) round, solid copper conductors with a nominal characteristic impedance of 100 ohm. Additionally, for campus backbone what other 2 cables are recognized?

19 AWG .91 mm .036 in

16 AWG .86 mm .028

26 AWG .41 mm .016

28 AWG .1.58 mm .048

Submit

76. OPTICAL FIBER CABLE SUBSTITUTIONS FOR OFN, OFNG ARE?

OFNG, OFN, OFCR, OFNR, OFCP, OFNP

OFNP

OFNR, OFNP

OFNP

77. To ensure that the backbone cabling can accommodate the voice and data transmission protocols that are deployed by the customer, the designer should consider what three things?

Length of the backbone segments

Type of media used

The customer's voice and data networking equipment

Cost of the installation

Location the backbone will be installed.

Submit

78. The appliction Token Ring 16 Mb/s uses a Specification Reference of what and was created when?

ISO/IEC 8802-3 2000

ISO/IEC FCD 9314-10 1994

AnSI/TIA/EIA-854 2001

ISO/IEC 8802-5 1998

79. Where should you position cable sleeves or slots?

In the corner of the room

On the left hand side

Adjacent to a wall on which the backbone cables can be supported

Next to equipment racks

80. OPTICAL FIBER CABLE SUBSTITUTIONS FOR OFCR ARE?

NONE

OFNP

OFNG, OFN, OFCR, OFNR, OFCP, OFNP

OFNR, OFCP, OFNP

OFNR, OFNP

81. The design of a building backbone between the building cross-connect (main or intermediate) and the HC (FD) is usually straightforward, though various options sometimes exist. The two primary options are the:

Star, where the HC (FD) is connected directly to the IC (BD)

Star, wher the HC (FD) is connected directly to the MC (CD)

Submit

82. In some cases, horizontal optical fibers may be extended through backbone pathways. However, this may not be possible because the horizontal cables may what?

May need to be rated for riser use (in some areas)

Much more costly to install

Can take up too much space in the backbone pathway.

Submit

83. Large multiplex systems may support up to ____ports?

256

48

124

128

36

84. The recommended balanced twisted-pair cable for building backbone consists of 24 AWG or up to 20 AWG round, solid copper conductors with a nominal characteristic impedance of 100 ohm.

True

False

85. Fiber cables are categorized by what?

Tight buffered

Campus backbone

Buffering mechansim

Function

Horizontal distribution

Submit

86. OPTICAL FIBER CABLE SUBSTITUTIONS FOR OFCP ARE ?

NONE

OFNR, OFCP, OFNP

OFNP

87. OPTICAL FIBER CABLE SUBSTITUTIONS FOR OFNR ARE ?

NONE

OFNG, OFN, OFCR, OFNR, OFCP, OFNP

OFNP

OFNR, OFCP, OFNP

88. Open cable shafts are used when available and where large quantities of cables are required on a floor that is distant from the ___

TR

ER

MC (IC)

TE

89. Electrical metallic tubing conduit fill for backbone cable on 1 cable is what percent fill?

53%

54%

35%

52%

90. To allow direct connections between TRs the system is expected to meet the requirements for a _topology or ____topology configuration?

BUS

STAR

RING

HIERARCHICAL STAR

Submit

91. Steel strands used for supporting riser cables are available in verious sizes ranging from ?

2.4 mm ( .10 in ) to 22 mm (.87 in)

6.3 mm (.25 in ) to 32 mm (1.3 in)

6.3 mm (.25in) to 22 mm (.87 in)

92. The advantage of using vertically aligned TRs is flexibility. What two things give it its flexibility?

Cost effective

Circuits can be distributed as required

Backbone cable sheath is accessible on each floor

Adds moves and changes are made easier

Submit

93. Two typical constructions of tight-buffered cables are?

Loose Tube which has a single jacket protecting all the tight-buffered optical fibers.

Distribution design which has a single jacket protecting all the tight-buffered optical fibers.

Tight buffered which has an individual jacket for each tight-buffered optical.

Breakout Design which has an individual jacket for each tigh-buffered optical.

Submit

94. The MC (CD) should be close to (if not located in) the main TR.

True

False

95. The length of the equipment cable used to connect telecommunications equipment directly to the MC (CD) or IC (BD) should not exceed what?

90m (295 ft)

30m (98ft)

5m (16ft)

10m (33ft)

96. Electrical metallic tubing conduit fill for backbone cabling on 2 cables is what percent fill?

53%

54%

24%

31%

32%

97. Typical multiplexers support how many ports?

12-24

24-36

24-32

12-32

12-36

RCDD Chapter 5

1. Singlemode optical fiber should be considered to support extended distances of high-speed applications.

2.

What first name or nickname would you like us to use?

2. Sleeves or slots must not obstruct wall-terminationg space.

3. The two recommended optical multimode fiber cables are graded-index optical fiber with a nominal 62.5/125 um or 50/125 um core/cladding diameter.

4. Heavy cable that is improperly supported can cause what?

5. You should place ties approximately 1 m (3.28ft ) apart with a minimum of three ties per floor.

6. In multistory buildings you ________ vertically align TRs whenever possible?

7. When choosing transmission media what factors should you consider?

8. For a multipair backbone balanced twisted-pair cable what is the Category and Class of the cable when it is specified up to 16 megahertz?

9. What is the Class and Category of a cable specified up to 100 MHz

10. Vertically aligned TRs with connecting sleeves or slots are the most common type of backbone pathway.

11. Nonconductive optical fiber plenum cable = what fiber cable marking?

12. BALANCED TWISTED-PAIR CABLE MARKINGS FOR COMMUNICATIONS RISER CABLE ARE?

13. BALANCED TWISTED-PAIR CABLE MARKINGS FOR COMMUNICATIONS UNDERCARPET CABLE ARE?

14. The location and configuration of hte slots shall be approved by a structural engineer.

15. BALANCED TWISTED-PAIR CABLE MARKINGS FOR COMMUNICATIONS LIMITED USE CABLE ARE?

16. The choice of transmission media may depend upon the application. What are the factors to be considered ?

17. A TR is an enclosed architectural space for housing what?

18. Singlemode fiber cable has a zero-dispersion wavelength around what?

19. When necessary you my place backbone cable pathways in elevator shafts.

20. Any direct-baried optical fiber cable also should have a layer of steel armoring for rodent protection.

21. What are the basic methods to terminate optical fiber cables?

22. BALANCED TWISTED-PAIR CABLE MARKINGS FOR COMMUNICATIONS PLENUM CABLE ARE ?

23. A TE is a case or housing for telecommunications equipment, cable terminations, and cross-connect cabling.

24. Indoor hardware is more varied than outdoor hardware.

25. A design for a one-level hierarchical star campus backbone would link all the buildings to the?

26. When the number of sleeves or the area of the pathway requires more than one row of sleeves, the designers should restrict the number of rows to ________whereever practicable?

27. Insert cable ties (usually 1.25 mm (.049 in) steel) to secure backbone cable through the layers fo the strand before overall strand tensioning.

28. OS1 fiber classification is what type of optical fiber?

29. Conductive optical fiber cable = what cable markings

30. What are the two types of buffering mechanisms for optical fiber cable?

31. Optical fiber cable for outdoor use typically contains a water-blocking compound for water resistance as well as well as for allowing some expansion and contraction with temperature changes. What type of cable is this?

32. A backbone system consists of: cable pathways, ER's, and TR's. What are some of the other components?

33. The size of the pathway using slots should be one slot sized at ________for up to _____________ of usable floor space served by that backbone system?

34. The slot area should be increased by .46m sq (60ft sq) with each 4000 m sq (40000 ft sq) increase in usable floor space served by that backbone.

35. The number of cables that can be installed in a condit can be limited by the allowed maximum pullin tension of the cables.

36. In multiplexed transmission, multiplexing equipment in TRs and ERs combines signals from many end points for transmission over __________ strands of optical fiber?

37. Nonconductive optical fiber riser cable = what cable marking?

38. BALANCED TWISTED-PAIR CABLE MARKINGS FOR COMMUNICATIONS CABLE ARE?

39. What is the backbone length and data rate for building backbone (OM3 fiber)

40. What is the backbone length and data rate for campus/building backbone (OS1 fiber)

41. Conductive optical fiber plenum cable = what fiber cable marking

42. Nonconductive optical fiber cable = what cable markings?

43. If the desired end equipment is not equipped with the connector chosen for the cabling system, use ________ cords to connect the end equipment to the patch panel.

44. You should avoid direct connections between HCs (FDs)

45. Cable manufactured with fiberglass rods or aramid yarn are known as what?

46. An optical fiber pigtail is an optical fiber cable that is:

47. Rack-mounted hardware is instlled in standard _____ or _____ racks or cabinets?

48. Multimode optical fiber is not generally used for campus or building applicaions due to the inability to use cost-effective transceivers.

49. Slots are typically located flush against the wall within a space, and shoud be designed at a depth (the demension perpendicular to the wall) of what?

50. Where large, heavy, balanced twisted-pair backbone cables are used (1200 -pair copper), clamp the cable to a ________ suspended between the highest floor of the building and the basement.

51. WHAT IS THE PERMITTED SUBSTITUTIONS FOR CMX CABLE TYPE?

52. A backbone star topology should have no more than _____________levels of cross-connection?

53. WHAT IS THE PERMITTED SUBSTITUTIONS FOR CMR CABLE TYPE?

54. The quantity of pathways using 100 mm (4 trade size) conduits or sleeves should be four sleeves or conduits plus on additional sleever or conduit per what?

55. The length of the equipment cable used to connect telecommunications equipment directly to the MC (CD or IC (BD) should not exceed what?

56. A TR or TE is the point where the backbone cabing interfaces to what?

57. Bridge and Taps are usually permitted as part of the building backbone cabling.

58. Connections between any two HCs (FDs) shoud not pass through more than ________cross-connections?

59. What are the backbone lengths and Data rates for Campus backbone (OM1 fiber)

60. Slots should have a minimum _____________high curb?

61. The most common application for optical fiber backbone cabling is multiplexed transmission.

62. Nonconductive backbone optical fiber cables shall have a minimum bend radius of ___ times the cable's outside diameter when under no load and ___ times the cable's outside diameter when being pulled.

63. OPTICAL FIBER CABLE SUBSTITUTIONS FOR OFC, OFCG ARE?

64. Often the most cost-effective transmission medium for data systems is?

65. What is the Backbone cable length for voice systems?

66. What are the backbone lingths and data rates for Campus backbones (OM2 fiber)

67. Conductive backbone optical fiber cables shall have a minimum bend radius of ____ times the cable's outside diameter when under no load and ____ times the cable's outside diameter when being pulled.

68. Connecting the outlying buidings in a physical ring are highly recommended?

69. The typical design for a conduit system that provides physical ring topology would dedicate some of the optical fibers to a ________ and some of the optical fibers to a __________?

70. Sleeves should extend a minimum of ___________ above the floor level?

71. The recommended cable types for backbone systems are?

72. OPTICAL FIBER CABLE SUBSTITUTIONS FOR OFNP ARE ?

73. Backbone and horizontal premises cabling must be installed in a pair-wise crossover orientation such that:

74. What is the backbone length and data rate for Building backbone (OM2 fiber)

75. The recommended balanced twisted-pair cable for building backbone cosists of 24 AWG (0.51 mm .020 in) or up to 22 AWG (.64 mm .025in) round, solid copper conductors with a nominal characteristic impedance of 100 ohm. Additionally, for campus backbone what other 2 cables are recognized?

76. OPTICAL FIBER CABLE SUBSTITUTIONS FOR OFN, OFNG ARE?

77. To ensure that the backbone cabling can accommodate the voice and data transmission protocols that are deployed by the customer, the designer should consider what three things?

33. The size of the pathway using slots should be one slot sized at for up to _____ of usable floor space served by that backbone system?

47. Rack-mounted hardware is instlled in standard _ or _ racks or cabinets?

62. Nonconductive backbone optical fiber cables shall have a minimum bend radius of _ times the cable's outside diameter when under no load and _ times the cable's outside diameter when being pulled.

67. Conductive backbone optical fiber cables shall have a minimum bend radius of times the cable's outside diameter when under no load and times the cable's outside diameter when being pulled.

69. The typical design for a conduit system that provides physical ring topology would dedicate some of the optical fibers to a and some of the optical fibers to a __?

90. To allow direct connections between TRs the system is expected to meet the requirements for a _topology or ____topology configuration?