RCDD TDMMV14 Test - DD101, DD102, & BICSI RCDD
Review: Questions With Step-by-Step Solutions
Which of the following terms refers to signal interference between cable
pairs?
A) Crosstalk
B) Impedance
C) Delay skew
D) Power Loss Right Ans - A) Crosstalk
TDMM, 14th edition, page 1-54
Series-6 and Series-11 coaxial cables have a characteristic impedance of ___
ohms.
A) 25
B) 75
C) 100
D) 150 Right Ans - B) 75
TDMM, 14th edition, page 6-24
Balanced twisted-pair cables have a nominal characteristic impedance of
________ ohms at
100 MHz.
A) 25
B) 75
C) 100
D) 150 Right Ans - C) 100
TDMM, 14th edition, page 1-57
Which of the following sets the standard for comparing the conductivity of
metallic
cabling?
,A) Copper
B) Gold
C) Silver
D) Aluminum Right Ans - A) Copper
TDMM, 14th edition, page 1-3, Table 1.1
Which optical fiber interface features an SFF design and has a simplex
connector that can be converted to a duplex using a clip?
A) LC-style optical fiber connector
B) ST-style optical fiber plugs
C) SC-style optical fiber plugs Right Ans - A) LC-style optical fiber
connector
TDMM, 14th edition, page 6-81
Which of these cables is considered immune to electromagnetic interference?
A) Optical Fiber
B) Balanced Twisted-Pair
C) Coaxial Right Ans - A) Optical Fiber
Reference: TDMM, 14th edition, page 2-37
Which of the following terms describes the transmission of signals in both
directions at the
same time?
A) Simplex
B) Half-duplex
C) Full duplex Right Ans - C) Full Duplex
TDMM, 14th edition, page 1-39
What are the two most popular sized cores in multimode optical fiber?
A) 8 μm to 11 μm
,B) 50 μm to 125 μm
C) 62.5 μm and 50 μm
D) 100 μm and 250 μm Right Ans - C) 62.5 μm and 50 μm
TDMM, 14th edition, page 6-16
Which type of optical fiber has a small diameter featuring a core of 8 μm to 11
μm?
A) OS2
B) OM3
C) OM4
D) OM5 Right Ans - A) OS2
TDMM, 14th edition, page 6-14
What are the two major classifications of optical fiber?
A) Multimode and singlemode
B) LED and VSCEL
C) Inside plant (ISP) and outside plant (OSP)
D) Backbone and horizontal Right Ans - A) Multimode and singlemode
TDMM, 14th edition, page 1-98
There should be a minimum of ____ telecommunications room per floor.
A) No minimum is required
B) 1
C) 2
D) 3 Right Ans - B) 1
TDMM, 14th edition, page 3-19
Multiple telecommunications rooms (TRs) are required if
the cable length between the horizontal cross-connect/floor distributor
(HC/FD) and the telecommunications outlet location, including slack, exceeds
___________.
, A) ≈15 m (50 ft)
B) ≈30.5 m (100 ft)
C) ≈45.8 m (150 ft)
D) ≈90 m (295 ft) Right Ans - D) ≈90 m (295 ft)
TDMM, 14th edition, page 3-21
What is the maximum area that a single telecommunications enclosure (TE)
can cover?
A) ≈334 m² (3600 ft²)
B) ≈465 m² (5000 ft²)
C) ≈743 m² (8000 ft²)
D) ≈929 m² (10,000 ft²) Right Ans - A) ≈334 m² (3600 ft²)
TDMM, 14th edition, page 3-27
Which of the following connects a telecommunications room (TR) to the work
area?
A) Horizontal cabling
B) Backbone cabling
C) Outside plant cabling Right Ans - A) Horizontal cabling
TDMM, 14th edition, page 5-5
What is the minimum amount of space that should be allocated for the
equipment room(ER)?
A) ≈1.83 m (6 ft) by ≈2.6 m (8.5 ft)
B) ≈2.4 m (8 ft) by ≈2.74 m (9 ft)
C) ≈3 m by ≈4.9 m (10 ft by 16 ft)
D) ≈3.7 m (12 ft) and ≈4.6 m (15 ft) Right Ans - C) ≈3 m by ≈4.9 m (10 ft by
16 ft)
TDMM, 14th edition, page 12-18
The cable transitioning from the outside into the building can transition no
more than ______ inside the building.
Review: Questions With Step-by-Step Solutions
Which of the following terms refers to signal interference between cable
pairs?
A) Crosstalk
B) Impedance
C) Delay skew
D) Power Loss Right Ans - A) Crosstalk
TDMM, 14th edition, page 1-54
Series-6 and Series-11 coaxial cables have a characteristic impedance of ___
ohms.
A) 25
B) 75
C) 100
D) 150 Right Ans - B) 75
TDMM, 14th edition, page 6-24
Balanced twisted-pair cables have a nominal characteristic impedance of
________ ohms at
100 MHz.
A) 25
B) 75
C) 100
D) 150 Right Ans - C) 100
TDMM, 14th edition, page 1-57
Which of the following sets the standard for comparing the conductivity of
metallic
cabling?
,A) Copper
B) Gold
C) Silver
D) Aluminum Right Ans - A) Copper
TDMM, 14th edition, page 1-3, Table 1.1
Which optical fiber interface features an SFF design and has a simplex
connector that can be converted to a duplex using a clip?
A) LC-style optical fiber connector
B) ST-style optical fiber plugs
C) SC-style optical fiber plugs Right Ans - A) LC-style optical fiber
connector
TDMM, 14th edition, page 6-81
Which of these cables is considered immune to electromagnetic interference?
A) Optical Fiber
B) Balanced Twisted-Pair
C) Coaxial Right Ans - A) Optical Fiber
Reference: TDMM, 14th edition, page 2-37
Which of the following terms describes the transmission of signals in both
directions at the
same time?
A) Simplex
B) Half-duplex
C) Full duplex Right Ans - C) Full Duplex
TDMM, 14th edition, page 1-39
What are the two most popular sized cores in multimode optical fiber?
A) 8 μm to 11 μm
,B) 50 μm to 125 μm
C) 62.5 μm and 50 μm
D) 100 μm and 250 μm Right Ans - C) 62.5 μm and 50 μm
TDMM, 14th edition, page 6-16
Which type of optical fiber has a small diameter featuring a core of 8 μm to 11
μm?
A) OS2
B) OM3
C) OM4
D) OM5 Right Ans - A) OS2
TDMM, 14th edition, page 6-14
What are the two major classifications of optical fiber?
A) Multimode and singlemode
B) LED and VSCEL
C) Inside plant (ISP) and outside plant (OSP)
D) Backbone and horizontal Right Ans - A) Multimode and singlemode
TDMM, 14th edition, page 1-98
There should be a minimum of ____ telecommunications room per floor.
A) No minimum is required
B) 1
C) 2
D) 3 Right Ans - B) 1
TDMM, 14th edition, page 3-19
Multiple telecommunications rooms (TRs) are required if
the cable length between the horizontal cross-connect/floor distributor
(HC/FD) and the telecommunications outlet location, including slack, exceeds
___________.
, A) ≈15 m (50 ft)
B) ≈30.5 m (100 ft)
C) ≈45.8 m (150 ft)
D) ≈90 m (295 ft) Right Ans - D) ≈90 m (295 ft)
TDMM, 14th edition, page 3-21
What is the maximum area that a single telecommunications enclosure (TE)
can cover?
A) ≈334 m² (3600 ft²)
B) ≈465 m² (5000 ft²)
C) ≈743 m² (8000 ft²)
D) ≈929 m² (10,000 ft²) Right Ans - A) ≈334 m² (3600 ft²)
TDMM, 14th edition, page 3-27
Which of the following connects a telecommunications room (TR) to the work
area?
A) Horizontal cabling
B) Backbone cabling
C) Outside plant cabling Right Ans - A) Horizontal cabling
TDMM, 14th edition, page 5-5
What is the minimum amount of space that should be allocated for the
equipment room(ER)?
A) ≈1.83 m (6 ft) by ≈2.6 m (8.5 ft)
B) ≈2.4 m (8 ft) by ≈2.74 m (9 ft)
C) ≈3 m by ≈4.9 m (10 ft by 16 ft)
D) ≈3.7 m (12 ft) and ≈4.6 m (15 ft) Right Ans - C) ≈3 m by ≈4.9 m (10 ft by
16 ft)
TDMM, 14th edition, page 12-18
The cable transitioning from the outside into the building can transition no
more than ______ inside the building.
